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Process Control Density Measurement Uni-Probe LB 491 With All Supplements User’s Manual ID-No. 38478BA2B Rev.-No.: 01 27.5.08 Embedded Soft. Rev. 100 Device Description Rev. 03/04 HART Device Description Rev. 01 PA Device Description Rev. 01 FF...
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Volume 1: Uni-Probe Installation Volume 2: Safety Manuals ® Volume 3: HART Communicator User Interface ™ Volume 4: PACTware User Interface FDT/DTM ® Volume 5: SIMATIC PDM User Interface HART Volume 6: SIMATIC PDM User Interface Profibus PA ™ Volume 7: FOUNDATION Fieldbus User Interface...
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Thank you very much for purchasing the density measuring system Dear customers Uni-Probe LB 491 made by Berthold Technologies GmbH & Co. KG. The scope of supply also includes this User’s Manual. Be sure to have this User’s Manual always to hand.
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If you do encounter problems despite careful study of the User’s Manual, please do not hesitate to contact us. Your Uni-Probe LB 491 team Uni-Probe LB 491 1 – 5 Berthold Technologies GmbH & Co. KG...
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Table of Contents Volume 1-7 5.4 Trouble Shooting ............1 – 87 5.5 Replacing the Complete Uni-Probe ......1 – 89 5.6 Replacing the Electronics Module ......1 – 90 5.7 Replacing the Crystal-Multiplier Assembly....1 – 93 5.8 Replacing the Digital Board........1 – 94 5.9 Replacing the Power Supply Unit ......
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ATEX / FM / CSA ............. 2 – 179 6.1 Overview Ex-Versions..........2 – 181 6.2 Type of Protection ATEX.......... 2 – 182 6.3 Type of Protection FM/CSA ........2 – 183 Uni-Probe LB 491 Berthold Technologies GmbH & Co. KG...
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Table of Contents Volume 1-7 ® Volume 3 HART Communicator User Interface ® General Information on the HART Communicator..3 – 189 1.1 Connection, Power On and Power Off of the ® HART Communicator ........... 3 – 189 ® 1.2 Working with the HART Communicator ....
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Table of Contents Volume 1-7 6.5 Measurement of Suspensions ......... 3 – 286 6.6 Software Versions........... 3 – 291 Tables ................3 – 297 7.1 Absorption coefficients........... 3 – 297 7.2 Temperature coefficients......... 3 – 298 7.3 Density of Water as a Function of the Temperature . 3 – 300 Error Handling ..............
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PC Connection to the Uni-Probe ........4 – 317 Installing and Working with DTM ........4 – 319 2.1 Requirements ............4 – 319 2.2 FDT Container ............4 – 319 2.3 DTM Communication Software....... 4 – 320 Uni-Probe LB 491 Berthold Technologies GmbH & Co. KG...
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Getting Started with SIMATIC PDM......... 5 – 335 3.1 First Steps............... 5 – 335 3.2 Installing SIMATIC PDM .......... 5 – 335 3.3 Installing the Uni-Probe LB 491 Device Description.. 5 – 339 3.4 Project Setup ............5 – 340 3.5 Starting SIMATIC PDM..........5 – 344 Menu Overview ..............
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Working with SIMATIC PDM ........... 5 – 457 9.1 Starting SIMATIC PDM ..........5 – 457 9.2 The SIMATIC PDM Main Window ......5 – 458 9.3 Device Icons in SIMATIC PDM ......... 5 – 461 Uni-Probe LB 491 Berthold Technologies GmbH & Co. KG...
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Table of Contents Volume 1-7 Volume 6 SIMATIC PDM User Interface Profibus PA Process Operation ............6 – 467 1.1 Important Information on the Operation....6 – 467 ® 1.2 Alternative Operation via HART ......6 – 467 1.3 System Overview ............ 6 – 468 Installation / Program Start..........
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Installation / Program Start ..........7 – 567 2.1 Installing the Device Description......7 – 567 2.2 Addressing the Density Meter Uni-Probe LB 491 ..7 – 567 Parameter Overview ............7 – 569 3.1 Parameters for the Function Block Resource.... 7 – 569 3.2 Parameters for the Function Block Transducer ..
Volume 1 1 General Information General Information General Safety Precautions The Uni-Probe LB 491 Density Meter may be installed, serviced and Maintenance repaired only by trained personnel. Never change the parameter settings without a full knowledge of Parameter settings this User’s Manual, as well as a full knowledge of the behavior of the connected controller and the possible influence on the operat- ing process to be controlled.
1 General Information Volume 1 Specific Warnings Danger of explosion when opening the housing in an explosive atmosphere! In addition to the supply line, you may also have to de-energize possibly connected relay contacts and all in- and outputs. Please open the housing only 30 minutes after having turned off the power supply.
Installation, dismantling, relocation, maintenance, testing involving the radioactive source, or its shielding shall ONLY be performed by trained and specifically licensed persons. Please contact Berthold Technologies GmbH & Co. KG. if you need further information. Uni-Probe LB 491 1 – 23...
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1 General Information Volume 1 38478BA2B 1 – 24 27.5.08...
Measuring System 2.1.1 Basic Measuring Configuration The Uni-Probe LB 491 is a density measuring system consisting of scintillation detector and evaluation unit in one housing. The density meter utilizes the radiometric measuring method, i.e. the absorption of Gamma radiation passing through the product being measured.
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SIMATIC PDM software made by SIEMENS including the Uni-Probe Device Description provided by Berthold Technologies has to be installed on the respective PC. As an alternative, the Uni-Probe may also be operated via a FDT frame application, e.g.
Volume 1 2 System Description Uni-Probe Hardware 2.2.1 Probe The Uni-Probe LB 491 Density Meter comprises one detector and one evaluation unit which are accommodated in one housing. 3/4" NPT conduits Power supply Preamplifier & HV generation Photomultiplier Scintillator Evaluation electronics ®...
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The 4–20mA density signal is transmitted from the Main Unit to the PCS (process control system) via 2-wire cable (ter- minals 51 and 52). ® The Uni-Probe LB 491 uses the HART protocol to communicate. Device communication Configuration, parameter setting and calibration of the Uni-Probe,...
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The radiation exit is cone shaped with an angle of about 10°. The user, together with Berthold Technologies GmbH & Co. KG, selects the type and diameter of shielding to comply with dose rate requirements when using the source activity required by the mea- surement.
2 System Description Volume 1 Measuring Principle The principle of measurement is the irradiation method. It utilizes the physical law of the absorption of radiation passing through matter. The resulting measuring effect is the ratio I/I between the unattenuated radiation I and the radiation I attenuated by the product being measured.
U or S-shaped measuring paths may be used for smaller pipeline diameters. Measurements in containers are also possible. The respective selections are made during the planning stage and must be observed during assembly and commissioning. Uni-Probe LB 491 1 – 31 Berthold Technologies GmbH & Co. KG...
2 System Description Volume 1 Technical Data IMPORTANT If you are working under different operating conditions, please con- tact Berthold Technologies. for non ex-applications: Operating temperature range Operation: -40 … +50°C Storage: -50 … +55°C according to ATEX: Ex-protection DMT 02 ATEX E 132 II 2 GD Ex d IIB/IIC T6 (Gas Ex, Zone 1&2)
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The maximum cable length of the HART loop depends on the con- nected impedance as well as on the capacity and inductivity of the cable. Max. cable length with Berthold cable # 32024: – 3300 m at 120 Ohm –...
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2 System Description Volume 1 The cable cross-section is dependent on the cable screws used (see Cable cross-section Volume 1, chapter 7). NaI (Tl) 50*50mm Scintillator EMI type 9266KB07 10 dynodes Multiplier Voltage range of control 300V … 1300V, High voltage generation (error message below 300V and above 1300V) Voltage range external setting 300V …...
XXXXX - X X X Water cooling without with Scintillator 50/50 NaI collimator with lateral irradiation 50/50 NaI collimator with axial irradiation Power supply - 250V AC/DC Fig. 2-5 Uni-Probe Nomenclature Uni-Probe LB 491 1 – 35 Berthold Technologies GmbH & Co. KG...
2 System Description Volume 1 LB Numerical Code The LB numerical code for the Uni-Probe identifies the type of sig- nal output. ID-No. LB numerical Communication Ex approvals Intrinsically safe Signal output code signal output ® 38478 LB 491 HART ATEX / FM / CSA passive (default setting), can be switched to active...
Take the shielding out of the box just prior to installation. Up to that time, store the shielding with the radioactive source in a loca- tion that is guarded against unauthorized access, see chapter 3.1.3 on page 1–39. Uni-Probe LB 491 1 – 37 Berthold Technologies GmbH & Co. KG...
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If the Uni-Probe housing receives a mechan- ical blow, e.g. because it is dropped, you have to return the Uni- Probe to Berthold Technologies GmbH & Co. KG for inspection. Carefully install the mounting brackets and fixtures using the draw- ings of the shielding and taking into account the circumstances at the measuring site.
Sources will be stored in their shieldings. A source may be stored only in a lockable room which is identified accordingly. Accessible controlled areas have to be identified and, if necessary, secured. Uni-Probe LB 491 1 – 39 Berthold Technologies GmbH & Co. KG...
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The exact position for your system parts is stated on the calculation documents and the tech- nical information prepared by Berthold Technologies. 3.1.5 Unpacking and Cleaning System Parts After unpacking, compare all parts with the packing list and check if the shipment is complete and shows any sign of damage.
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3 Installation Volume 1 3.2.2 Shieldings with Pneumatically Operated Lock and Shutter Switch A pneumatic lock with switch contacts indicating the position of the lock is available as a special version. The pressurized air moves the shutter to the OPEN position. In case of failure of the compressed air, the shutter is turned back to the “CLOSED”...
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Lead Source in position Radiation “closed” exit channel Version 45° Source in position Version 90° “open” Steel pipe Protection tube Fig. 3-3 Shielding for installation in a container Uni-Probe LB 491 1 – 43 Berthold Technologies GmbH & Co. KG...
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3 Installation Volume 1 3.2.4 Shieldings for Installation in a Container with Pneu- matically Operated Lock and Shutter Switch The shielding consists of a lead-filled steel pipe, with a guide tube for the radioactive source installed in the center. The radiation exit channel is located at an angle of 90°...
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Shutter switch for ex-protected area The connection must be made to an intrinsically safe power supply. For detailed information on the construction and function of the shieldings, see the respective drawings. Uni-Probe LB 491 1 – 45 Berthold Technologies GmbH & Co. KG...
3 Installation Volume 1 Installation on Pipelines Risk of injury! – Never step under hovering loads while unloading heavy system parts! – Only use tested lifting equipment matching the transport weights. – Observe adequate safety margin. – Wear hard hat and protective shoes. Radioactivity! Radiometric measuring devices utilize radioactive substances.
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On S or U-shaped measuring paths the shielding container with source has to be installed on top and the detector at the bottom (see Fig. 3-8). Fig. 3-8 Installation on S or U-shaped measuring path Uni-Probe LB 491 1 – 47 Berthold Technologies GmbH & Co. KG...
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3 Installation Volume 1 • A temperature insulation consisting of glass or rock wool is not suitable, as it does not ensure safe installation of the measur- ing system. If, for technical reasons, temperature insulation at the measuring point is absolutely required, it must be made of a hard, non-hygroscopic material, i.e.
(see Figures 3-11 and 3-12). Brace Fig. 3-10 Installation in a container Uni-Probe LB 491 1 – 49 Berthold Technologies GmbH & Co. KG...
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3 Installation Volume 1 Side view View from above Fig. 3-11 Installation in a container with horizontal flow Side view View from above Fig. 3-12 Installation in a container with vertical flow • Selection of measuring site: During operation, the level in the container must be at least 200mm above the measuring site.
Detector Protection 3.5.1 Cooling The Uni-Probe LB 491 with water cooling jackets has to be used if temperatures exceeding 50°C are expected. The cooling water cycle has to remain in operation even when the instrument is turned off, if the temperature is likely to exceed 50°C.
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3.5.4 Precautions against Vibrations The transfer of strong vibrations or shocks to the Uni-Probe LB 491 has to be prevented by suitable constructive measures (e.g. shock absorbers), as this may damage the detector. If necessary, shield- ing container and detector have to be installed on a separate con- struction or suspension.
OKS 217. Prior to initial operation, check the connection box and then per- form a visual inspection. Use the inspection schedules in chapters 5.2 and 5.3 on page 1–86. Uni-Probe LB 491 1 – 55 Berthold Technologies GmbH & Co. KG...
4 Electrical Installation Volume 1 Conduits The Uni-Probe housing is provided with ¾" NPT conduits through which the electrical cables are installed according to regulations. Cable pipes or screwed cable glands can be screwed into the con- duits. They have to be licensed for the respective type of protection and have to be installed carefully in accordance with regulations! Make sure that the threads are clean and apply the supplied lubri- cant OKS 217 completely onto the NPT thread.
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The screwed cable glands have to be installed professionally. Tighten the screw fitting using the appropriate torque to fix the cable. For information on torque for screw fittings purchased through Berthold Technologies please see chapter "8 Technical Drawings". Cable bushing in connection box...
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4 Electrical Installation Volume 1 4.1.2 FM/CSA Connection Type IMPORTANT A stopping box has to be installed on each conduit used directly behind the Uni-Probe housing. The ground conductor has to be connected to the internal ground- Ground conductor ing screw using a fairly short cable (see Fig. 4-1). Connect the device to an equipotential busbar (see Fig.
REL 3 Alarm REL 4 RS -232 interface Alarm (for software update) Fig. 4-2 Terminals Tighten the screws of the terminal clamps using a torque of 0.5 to 0.6Nm. Uni-Probe LB 491 1 – 59 Berthold Technologies GmbH & Co. KG...
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1600 m at 250Ohm – 800 m at 500Ohm We recommend using a screened cable, for example the Berthold Technologies cable #32024. 53 - 54 Current input, electrically isolated: Temperature compensation or flow speed in case of mass flow application...
Ω at the current output. 120 Ohm / RS-485 ON OFF 4–20mA active with complete electronics passive Fig. 4-3 Digital board Uni-Probe LB 491 1 – 61 Berthold Technologies GmbH & Co. KG...
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4 Electrical Installation Volume 1 1. Capacitor-buffered real-time clock 2. Slide switch for current output With this slide switch you can choose whether power is gener- ated by the current output or supplied by an external source. Move slide switch to the left: current output is passive Move slide switch to the right: current output is active Caution: Ver- sions with intrinsically safe current output may not be switched over, since the connected buffer amplifier serves as current...
IMPORTANT The electrical terminals of the detector are located in the top sec- tion of the detector housing. They are accessible after opening the cover (see Fig. 4-1). Uni-Probe LB 491 1 – 63 Berthold Technologies GmbH & Co. KG...
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4 Electrical Installation Volume 1 Unscrew housing cover. Proceed as follows Wire the Uni-Probe detector(s) depending on your configura- tion. Explosion hazard! In explosion-protected areas, use the cable bushings permitted for your type of explosion protection. Please keep in mind the informa- tion above and in Volume 2, "Safety Instructions for the Types of Protection ATEX / FM / CSA", chapter 6.
Volume 1 4 Electrical Installation Uni-Probe with Ex i Current Output The following information is valid for the Uni-Probe LB 491-11. 4.5.1 Design Uni-Probe The version of the Uni-Probe with intrinsically safe current output is equipped with a pre-assembled cable for the current output as standard.
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4 Electrical Installation Volume 1 4.5.2 Uni-Probe Connection Box Covering cap Isolating repeater Fuse for isolating repeater (only for version LB 49x-11) Fig. 4-5 Uni-Probe open The isolating repeater is mounted on the side in the connection box on a top hat rail. To ensure intrinsic safety, please do not: •...
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The current output of the isolating repeater cannot be switched over between active and passive. The table on page 1–70 shows which type of isolating repeater is used in your device. Uni-Probe LB 491 1 – 67 Berthold Technologies GmbH & Co. KG...
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4 Electrical Installation Volume 1 4.5.3 Terminal Box Fig. 4-7 Terminal box Use the terminal box (ID-No. 49546) to extend the factory- mounted 20m long current signal cable to the next distribution cabinet. The current output signal and the screen have to be looped via the terminal box.
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*Dimensions reduced by conicity Free size tolerance according to GTA 13/5 DIN 1688 Closing lid (Total height) Borehole for wall installation Base part Fig. 4-8 Assembly drawing for terminal box Uni-Probe LB 491 1 – 69 Berthold Technologies GmbH & Co. KG...
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Fuses for power supply unit 24V and 95V to 250V Fuses AC/DC 2 ea. 1.25A breaking capacity 1500A Type Littelfuse Berthold ID-No. 46719 Littelfuse order number: 215 1.25 Fuses for isolating repeater: 1 ea. T36mA breaking capacity 1500A Type Littelfuse Berthold ID-No. 46748 Littelfuse order number: 215 0.63...
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4 Electrical Installation Volume 1 mA - Isolating Repeater Type 9164 Technical Data 9164/13-22-08 (I.S. Input) 9164/13-22-09 (Ex e Input) I.S. output Version passive (current sink up) passive (current sink up) Signal output 3.6 mA ... 21 mA with HART 3.6 mA ...
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Dimension drawing (all dimensions in mm) - subject to alterations 0932E00 We reserve the right to make alterations to the technical data, weights, dimensions, designs and products available without notice. The illustrations cannot be considered binding. 10.11.2004 Uni-Probe LB 491 1 – 75 Berthold Technologies GmbH & Co. KG...
4 Electrical Installation Volume 1 Uni-Probe with Signal Output ™ Profibus PA / FOUNDATION Fieldbus (not intrinsically safe) The following special information is valid for the devices: • LB 491-81 Profibus PA ™ • LB 491-91 FOUNDATION Fieldbus Danger, electric shock! If the housing is open, you may get in contact with live parts when the power supply is turned on.
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This module is installed on the digital board of the Uni-Probe (see Figure 4-10). Terminals for 1: + 2: - Fieldbus communication Digital board Fieldbus module Fig. 4-10 Digital board with fieldbus module Uni-Probe LB 491 1 – 77 Berthold Technologies GmbH & Co. KG...
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4 Electrical Installation Volume 1 3/4" NPT conduit 3/4" NPT conduit Power supply Equipotential bonding Fuses Digital Equipotential bonding bus- Power board RS -232 3/4" NPT conduit 3/4" NPT conduit Fig. 4-11 Connection box with fieldbus module Connect the signal cable to both screw-type terminals of the fieldbus module.
If 20 m cable are not enough to reach the next distribution cabinet, you may use an intrinsically safe terminal box (ID-No. 49546) to extend the cable. See also "4.5.3 Terminal Box" on page 1–68. Uni-Probe LB 491 1 – 79 Berthold Technologies GmbH & Co. KG...
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4 Electrical Installation Volume 1 Danger, electric shock! If the housing is open, you may get in contact with live parts if the power supply is turned on. Carefully attach the cover on the housing before turning on the power supply. Attach the cover carefully onto the housing and tighten it using a torque of 25Nm (standard value).
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20m cable length are as follows: Capacity: 2.84nF Inductivity: 0.013mH The bus cable (ID-No. 46413, UNITRONIC BUS PA FC (BU) 1x2xAWG18/1) supplied by Berthold Technologies has the following properties: Capacity (1kHz conductor/conductor) 50nF/km Capacity (1kHz conductor/screen) 92nF/km Inductivity (31.25kHz)
– the screw thread on the cover is corroded – dummy plugs are heavily corroded – the Uni-Probe housing is heavily corroded – the Uni-Probe housing is damaged Uni-Probe LB 491 1 – 83 Berthold Technologies GmbH & Co. KG...
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(ESD). Dis- charge yourself before touching the components by touching a grounding point. Use only fuses that match the rating specified by Berthold Technol- Maintenance ogies GmbH & Co. KG. A visual inspection of the Uni-Probe has to be carried out at least every third year.
Are there any doubts concerning the sealing of the screwed cable glands? Are all unused openings provided with dummy plugs? Are the dummy plugs adequate for the required explo- sion group? Uni-Probe LB 491 1 – 85 Berthold Technologies GmbH & Co. KG...
5 Repair, Maintenance and Service Volume 1 Checking the Connection Box Date: ..... Provisions Name: ............ Inside the connection box Is the interior (connection box) in perfect order? Is the interior dry, clean and free of foreign material? Are the cables connected firmly? Are the terminals in perfect order? Is any corrosion noticeable in the interior or on the cir- cuit boards?
Count rate too low Check age of source and (see above) irradiation level. Replace detector Density reading Detector stabilization Replace detector shows drifts faulty Photomultiplier faulty Replace multiplier Uni-Probe LB 491 1 – 87 Berthold Technologies GmbH & Co. KG...
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5 Repair, Maintenance and Service Volume 1 5.4.1 Function Check Digital Board There are three LEDs on the digital board directly next to the RS- 232 connector. CPU LED Fig. 5-1 Digital board LEDs 1) CPU LED The CPU LED informs you if the CPU is working correctly. –...
SIMATIC PDM (see the respective software description). Carry out a new empty calibration (see the respective software description). Then the Uni-Probe is again ready for use. Uni-Probe LB 491 1 – 89 Berthold Technologies GmbH & Co. KG...
5 Repair, Maintenance and Service Volume 1 Replacing the Electronics Module IMPORTANT Removal and installation of parts of the Uni-Probe should be carried out in a clean workshop environment. The electronics module has to be dismantled if one of the following parts has to be exchanged: •...
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Unscrew housing cover. Remove grounding cable (1). Unscrew two nuts M8 (2). Fig. 5-2 Dismantling the detector electronics Carefully pull out electronics module horizontally together with the crystal-multiplier assembly. Uni-Probe LB 491 1 – 91 Berthold Technologies GmbH & Co. KG...
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5 Repair, Maintenance and Service Volume 1 5.6.2 Installing the Electronics Module Reassemble the electronics module in reverse order: Carefully insert electronics module with the crystal-multiplier assembly again into the housing. Fix electronics fixture with the two nuts (M8). IMPORTANT Tighten screws evenly and alternating between screws.
1–92. This completes the replacement of the crystal-multiplier assembly. IMPORTANT After replacement, check or enter the detector code and the value of the high voltage for HV-Default. Uni-Probe LB 491 1 – 93 Berthold Technologies GmbH & Co. KG...
5 Repair, Maintenance and Service Volume 1 Replacing the Digital Board Connect yourself to ground potential (use a grounded wrist strap) to avoid damage caused by electrostatic discharge. Dismantle the electronics module as described on page 1–91. Separate both flat ribbon cables from the digital board (7). Unscrew the plastic cover (8).
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100 to <200 2.xx 8000 and higher 52256 200 and higher 3.xx The Uni-Probe serial number is printed on the type label which is attached on the Uni-Probe housing. Uni-Probe LB 491 1 – 95 Berthold Technologies GmbH & Co. KG...
5 Repair, Maintenance and Service Volume 1 Replacing the Power Supply Unit IMPORTANT Depending on the version, one of the following power supply units may be installed: 95V to 250V or 24V . Make sure that you AC/DC install the respective power supply board again. Dismantle the electronics module as described on page 1–91.
Power supply board 24V AC/DC Power supply board 95 - 250V Fig. 5-6 Position of power supply board and fuses in the device Type of fuse: Berthold part #24586. Technical data of fuse IMPORTANT For power supply 95V to 250V and 24V , use only 1.25A/...
PC. Special download software, the Uni- Loader, must be installed on the PC. The software and the cable are available from Berthold Technolo- gies on request. Depending on the digital board version, only certain software revi- sions can be installed on the Uni-Probe.
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Uni-Probe is turned on while the RS-232 interface is plugged in. Start the update software Uni-Loader by double-clicking on UNI- LOADER.EXE Uni-Probe LB 491 1 – 99 Berthold Technologies GmbH & Co. KG...
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5 Repair, Maintenance and Service Volume 1 If the connection is not established automatically, establish the connection with the Uni-Probe. Click on CONNECT IMPORTANT Successful connection establishment is indicated by the yellow LED in the program window. If the connection cannot be established, disconnect the Uni-Probe from mains.
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ERASE AND PROGRAM download is now carried out. This may take several minutes. The progress bar informs that the Uni-Probe programming is running. Now the update is finished. Uni-Probe LB 491 1 – 101 Berthold Technologies GmbH & Co. KG...
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5 Repair, Maintenance and Service Volume 1 Close the program Uni-Loader. Disconnect the Uni-Probe from power. Remove the null modem cable from PC and Uni-Probe. Close the housing carefully with the cover. Attach the cover carefully onto the housing and tighten it using a torque of 25Nm (standard value).
Radiation Scintillator Dynodes Amplifier Light flashes Photo cathode Fig. 5-8 Scintillation detector The detector uses a 2" NaI crystal as scintillator. Uni-Probe LB 491 1 – 103 Berthold Technologies GmbH & Co. KG...
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5 Repair, Maintenance and Service Volume 1 5.12.1 Checking the NaI Detector Malfunctions of the scintillation counter are not always indicated by a missing pulse rate; it is also possible that the specific Gamma sensitivity appears to have changed or obvious instabilities are apparent.
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Using the adhesive tape, replace the Mu-metal screen, making sure that it is only under light tension. Uni-Probe LB 491 1 – 105 Berthold Technologies GmbH & Co. KG...
5 Repair, Maintenance and Service Volume 1 5.13 Customer Service Customer service for Berthold measuring systems is available in many countries outside Germany. For further information please visit out website www.Berthold.com. If you do not know the phone number of your local service engi- neer, please call the following numbers at the manufacturer’s head-...
Your order number (if necessary) • Preferred mode of transportation (if necessary) • Customs value (for cross-border shipment) Berthold Technologies delivery address: Berthold Technologies GmbH & Co. KG Service Department Calmbacher Str. 22 D-75323 Bad Wildbad Uni-Probe LB 491 1 – 107...
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5 Repair, Maintenance and Service Volume 1 38478BA2B 1 – 108 27.5.08...
Master Contract: 215040 Project: 1876850 Date Issued: 2007/02/09 Issued to: Berthold Technologies GMBH & CO KG Calmbacher Str 22 Bad Wildbad, 75323 Germany Attention: Francisco Silva The products listed below are eligible to bear the CSA Mark shown Issued by:...
To obtain better sealing capabilities against penetrating liquid, met- Sealing against humidity ric screwed cable glands have to be sealed using a commercial Teflon tape which has to be wrapped around the thread. Uni-Probe LB 491 1 – 125 Berthold Technologies GmbH & Co. KG...
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7 Screw Fittings and Accessories Volume 1 7.1.2 Screwed Cable Gland Brass Nickel-Plated The screwed cable glands are suitable for zones 1, 2, 21 and 22 Material Brass nickel-plated Terminal insert Polyamid (PA) Sealing insert Extended use temperature -60°C to 105 °C Type test certificate KEMA99 ATEX 6968 X Type of protection...
Apply the lubricant evenly on the threads such that the threads are completely covered. Remove excess lubricant. See also "Material Safety Data Sheet for Lubricant OKS 217" on the following page. Uni-Probe LB 491 1 – 127 Berthold Technologies GmbH & Co. KG...
8 Technical Drawings Volume 1 Point Detector with Lateral Irradiation Type Crystal Collimator Weight (kg) Total length (mm) without water cooling XXXXX-X10 50/50 radial 22.5 with water cooling XXXXX-X11 radial 38478BA2B 1 – 132 27.5.08...
Heating up of the detector caused by the heat emission from the container can be reduced by installing a thin heat dissipation metal sheet. A water cooling jacket (option) is also available for each detector. Uni-Probe LB 491 1 – 133 Berthold Technologies GmbH & Co. KG...
Required Amount of Cooling Water for Point Detector Cooling water curve for point detector 40°C Cooling water input temperature 30°C 20°C 10°C Ambient temperature in ºC Uni-Probe LB 491 1 – 135 Berthold Technologies GmbH & Co. KG...
8 Technical Drawings Volume 1 Point Source Shielding LB 744X LB 7440 & LB 7442 LB 7444 Point source Radiation exit Lock Position Open Position Closed Type plate Type Stainless F∅ G K∅ L M Flange Weight steel (kg) housing LB 7440 F CR LB 7440 D CR ND 125,...
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8 Technical Drawings Volume 1 8.9.5 Point Source Shielding LB 744X with Pneu- matic Actuator For remote control, a pneumatic shutter system is available as an option. The pneumatic actuator is available with a limit switch open/close indication and also for the Ex-area (see options in the table below). Type N approx.
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Limit switch unit, version IP65 Cable diameter 6 … 12mm Cable diameter 9 … 12mm Volt max. current Volt max. current Lamp 0.06 0.06 0.25 0.03 0.025 0.25 0.03 Uni-Probe LB 491 1 – 143 Berthold Technologies GmbH & Co. KG...
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8 Technical Drawings Volume 1 Installation and setup instructions for ASi-bus-compatible limit-switch EEx ed boxes KINETROL … -003U IMPORTANT IIC T6 If the limit-switch box … -003U is delivered separately, it has to be and … -004U stored in a plastic bag until it will be installed. The certification will keep its validity only if the limit-switch box has been installed correctly on the swivel drive.
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8 Technical Drawings Volume 1 Optional cable clamps for connection of a magnetic valve Adjustable cams Shaft Shaft mounting View without housing cover Secure mounting screw with COCTITE etc. Cork sealing Direct installation 4 mounting drill holes M6x5mm on pitch circle 9.53 for holes Ø50 9.48...
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The two trip cams on the limit-switch shaft are fixed by one screw each. Untighten these screws. For more information please see "Adjusting the trip cams" on page 1–144 and "Technical Specification / Electrical Wiring", on page 1–145. Uni-Probe LB 491 1 – 147 Berthold Technologies GmbH & Co. KG...
If the housing is open, you may get in contact with live parts if the power supply is turned on. During installation and ser- vicing on the hardware of the density meter Uni-Probe LB 491 you have to disconnect the system, possibly connected relay contacts Uni-Probe LB 491 2 –...
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(ESD). Dis- charge yourself before touching the components by touching a grounding point. The density meter Uni-Probe LB 491 may be installed, serviced and Maintenance repaired by trained personnel only. Use only fuses that match the rating specified by Berthold Technol- ogies GmbH &...
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1–86 in Volume 1. Installation, dismantling, relocation, maintenance, testing involving the radioactive source or its shielding shall ONLY be performed by trained and specifically licensed persons. For further information, please contact Berthold Technologies GmbH & Co. KG. Uni-Probe LB 491 2 – 155...
Uni-Probe cannot be used any more in ex-protected areas. If the Uni-Probe housing receives a mechan- ical blow, e.g. because it is dropped, then you have to return the Uni-Probe to Berthold Technologies GmbH & Co. KG for inspection. Uni-Probe LB 491 2 – 157...
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2 Transport and Assembly Volume 2 38478BA2B 2 – 158 27.5.08...
The radiation intensity (dose rate) follows – just like light – a square distance law. This means, doubling the distance to the source will reduce the dose rate to one quarter. Uni-Probe LB 491 2 – 159 Berthold Technologies GmbH & Co. KG...
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3 Radiation Protection Volume 2 Conclusion: When handling radioactive substances, maximum distance to the source should be maintained. This is especially true for persons that are not directly involved in this work. The total time a person stays in the vicinity of a radiometric mea- Time suring system and the body is exposed to radiation.
250 times per year by one and the same per- son. Uni-Probe LB 491 2 – 161 Berthold Technologies GmbH & Co. KG...
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3 Radiation Protection Volume 2 3.2.3 Radiation Dose Calculations When preparing work on radiometric measuring systems, it is important to pre-calculate the radiation exposure to be expected, since this has consequences on the required safety precautions. The expected radiation exposure can be calculated quite easily and with sufficient accuracy, provided you know the isotope and the activity of the source used.
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Communicator or terminate the SIMATIC PDM and report the result to the process engineer. If there is a failure or you have doubt, notify the Berthold Tech- nologies GmbH & Co. KG service department. Document the test, including the date of test, the device model and serial number, test conclusions and your name.
3 Radiation Protection Volume 2 Safety Measures When designing the installation of radiometric measuring systems, the possibility that a fire breaks out must be considered. Please keep in mind that flammable substances must not be stored in the proximity of radioactive substances. They should be covered and protected properly to prevent a possible spreading of the fire to the radioactive sources.
• Limit access to the area • Report the incident to Berthold Technologies GmbH & Co. KG; who will advise what further immediate precautions to take and arrange for quick support from a licensed person. In case of loss or theft, notify the regulatory authority.
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In case of an accident or malfunction or any other event which affects the safety, the regulatory authority has to be informed and also, if necessary, the authority in charge of public safety. Please contact Berthold Technologies GmbH & Co. KG if you need any fur- ther information. 38478BA2B 2 –...
Empty calibration has to be performed any time a source is replaced! For information on the design of source and shielding please refer to the technical documentation and the identity plate (Fig. 3-1). Fig. 3-1 Identity plate Uni-Probe LB 491 2 – 167 Berthold Technologies GmbH & Co. KG...
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3 Radiation Protection Volume 2 If the source has to be renewed, you have to include the source number of the original source in your new order. This number con- sists of three digits, for example: 1234 - 11 - 94 The first group is a consecutive number, the second group identifies the month (here: November) and the third the year the source was manufactured (here: 1994).
Source Source holder Alternative test area, if accessible Alternative test Fig. 3-2 Alternative test area on point source shieldings LB 744 Turn lever to horizontal position for testing. Uni-Probe LB 491 2 – 169 Berthold Technologies GmbH & Co. KG...
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3 Radiation Protection Volume 2 The alternative test area is the head of the visible edge of the source holder. If the cover is also accessible then you have to wipe there as well. 38478BA2B 2 – 170 27.5.08...
(shielding vessel, lead bricks, concrete stones, etc.) and place the source holder and the source there on a piece of paper to protect it against dirt. Uni-Probe LB 491 2 – 171 Berthold Technologies GmbH & Co. KG...
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4 Source Replacement Volume 2 Depending on the construction, you either have to open the lock on the shielding and turn the lever to center position between ON and OFF until the hexagon head bolt of the source holders becomes vis- ible, or remove the locking plate, so that you can unscrew the source holder.
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IMPORTANT The special regulations regarding labeling and transport of the shielding back to the manufacturer have to be observed. If in doubt, please contact Berthold Technologies' Source Transport Manager . This completes the point source replacement. Uni-Probe LB 491 2 –...
4 Source Replacement Volume 2 Radiation Exposure during Source Replacement It is important to calculate the potential radiation exposure before mounting or dismantling point or rod sources. An exact calculation is possible using the equation below. The anticipated working hours should be split up in work in the direct vicinity of the shielding during mounting and dismantling the source holders and work with the unshielded source while fixing and dismantling the source and the source holder.
If you have received a quotation from us, please include our quotation number as well. • Radioactive material can be returned only after you have received permission from Berthold Technologies. We would be happy to send you a quotation on the disposal costs to be expected. Uni-Probe LB 491 2 –...
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Berthold Technologies has to be informed in advance about the return transport. Radioactive material that is shipped to Ber- thold without prior notice will not be accepted by Berthold Tech- nologies. Any warehouse expenses will be charged to the sup- plier.
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Telephone no.: Town / Postal code Country: Activity Isotope Source No. Source will be returned for disposal Other instructions (please complete) ........................................................... Shielding may be disposed off Uni-Probe LB 491 2 – 177 Berthold Technologies GmbH & Co. KG...
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5 Source Disposal Volume 2 New sources to be inserted in the shielding(s) according to sender's order no.: ....../ our order confirmation no. Shielding to be returned empty to sender Shielding to be returned to sender after repair Sender's repair order no.: ....../ our order confirmation no. Return of a shielding on loan from sender Sender's order no.: ....../ our order confirmation no.
Close the housing carefully with the cover before turning on the power supply. Fix the cover carefully onto the housing and tighten it using a torque of 25Nm (standard value). Uni-Probe LB 491 2 – 179 Berthold Technologies GmbH & Co. KG...
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6 Safety instructions ATEX/FM/CSA Volume 2 Before closing, make sure that the threads are clean and greased with OKS 217. Unused conduits must be closed by a dummy plug which is suited for the respective type of protection. Modifications on the installation may not be carried out without detailed knowledge of these operating instructions.
For screwed cable glands with metric male screw thread you need ATEX-approved adapters “NPT / metric”. Berthold Technologies is offering the following adapters: • ¾" NPT male thread to M16 female thread •...
See also certificates in Volume 1, chapter 6.2 and 6.3, on page 1–121. You have to install a stopping box behind each cable duct with con- nected conduit. Uni-Probe LB 491 2 – 183 Berthold Technologies GmbH & Co. KG...
® The Density Meter Uni-Probe LB 491 is compatible with the HART Communicator made by Emerson Process (HART = Highway ® Addressable Remote Transducer). Other HART compatible com- ®...
® 1 General Information on the HART Communicator Volume 3 From this menu you may directly select the item LIVE DISPLAY online display of the measured values. The measured data are den- sity values only when the probe is calibrated and its parameters have been set.
Uni-Probe. The following sections require that you: • know how to operate the Communicator • have read and understood Volume 1 ("Uni-Probe Installation") of this User’s Manual. Uni-Probe LB 491 3 – 191 Berthold Technologies GmbH & Co. KG...
Volume 3 Start Menu The Start menu is the first and highest level for communication with the Uni-Probe. From the Start menu you have access to all DENSITY other menu items. The Start menu appears when you ® • switch on the connected HART Communicator or Meas.
(cps). The count rate is averaged over the time constant. The density is calculated from this count rate. 5 PROBE RAW DATA Shows the raw data of the detector. Uni-Probe LB 491 3 – 195 Berthold Technologies GmbH & Co. KG...
Volume 3 PROBE RAW DATA 1 CPS DENSITY Live display of the current count rate without averaging. 3067 cps 2 HV READING HV Reading 650 V HV Mode Auto Display of the current high voltage (HV). Temp. 41.8 degC 3 HV MODE Shows the current HV operating mode.
Measured value for the upper range limit (20mA) of the current output. 3 LO. RANGE Measured value for the lower range limit (4mA) of the current out- put. 4 SHOW CAL. DATA Shows the calibration points. Uni-Probe LB 491 3 – 197 Berthold Technologies GmbH & Co. KG...
Volume 3 SHOW CAL. DATA CALIBRATION POINT Background: Shows the calibration points. Rate 0 cps You can view the following values one after the other: • Background: Background rate. • Calibration Mode: The calibration mode used: linear, square, cubic or automatic. •...
3 SHOW ERROR LOG Opens the error log showing the errors that have occurred last in a table. 3 REVIEW This menu item includes additional information, see section 2.11. Uni-Probe LB 491 3 – 199 Berthold Technologies GmbH & Co. KG...
Volume 3 SHOW ERROR LOG 2.10 The error log shows the errors that have occurred last in a table. In addition, the date and time of each error are displayed. Up to 20 DENSITY errors can be stored. If more than 20 errors have occurred, only the last 20 errors will be displayed.
Volume 3 REVIEW 2.11 The contents and use of this information can only be changed par- tially by the user; for the most part, they are defaulted by Berthold Technologies. MODEL Shows the model number of the Uni-Probe. This information is defaulted by Berthold Technologies and cannot be changed.
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Shows the embedded software in the LB 491. See also the table on page 3–293. HARDWARE REV Shows the hardware revision. This number is set up by Berthold Technologies and cannot be changed by the operator. POLL ADDR Shows the polling address. It is used by the host terminal to iden- ®...
• FULL ACCESS • CONFIGURATION & CALIBRATION • CONFIGURATION • READ ONLY 2 ENTER PASSWORD Leads to the password entry to gain access to the respective level(s). Uni-Probe LB 491 3 – 203 Berthold Technologies GmbH & Co. KG...
Access to level Password Description Password 3 FULL ACCESS Password 2 CONFIGURATION & CALIBRATION Password 1 CONFIGURATION 00000000 READ ONLY IMPORTANT If you forget your password, please contact Berthold Technologies or one of our representatives. 38478BA2B 3 – 204 27.5.08...
3–271. CONFIGURATION 2.15 1 GENERAL DATA DENSITY Shows the general parameters. 2 SYSTEM PARAMETER Shows the system parameters. 3 MEASURE PARAMETER Shows the measurement parameters. Uni-Probe LB 491 3 – 205 Berthold Technologies GmbH & Co. KG...
With this item you can define a period printout of the measured values via the RS-485 interface. 7 DISTRIBUTOR Berthold Technologies is entered as Distributor. This information is defaulted by Berthold Technologies and cannot be changed. 38478BA2B 3 – 206...
You may select this setting only if hazards to persons or damage to property cannot be ruled out if a faulty measured value is obtained. Uni-Probe LB 491 3 – 207 Berthold Technologies GmbH & Co. KG...
Volume 3 • Continue measurement: Select this setting if you do not want to interrupt or disturb the production by minor error messages or warning messages. Only severe errors are indicated at the current output. However, the error relay indicates, parallel to the current output, minor and severe errors (see error list on page 3–301).
20 s 3 x T = virtually corresponds to the end value Fig. 2-1 Time constant The time constant corresponds in its function to an RC element. Uni-Probe LB 491 3 – 209 Berthold Technologies GmbH & Co. KG...
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Volume 3 t = R x C Fig. 2-2 RC element 2 RAPID SWITCH • No: without rapid switchover • Yes: with rapid switchover 2.19.1 Function Rapid Switchover The use of the function is recommended only for RAPID SWITCH special applications where the output signal has to adapt rapidly to the new value.
Enter the delay time in seconds. If interference radiation is detected, the measurement stops for the duration of the delay time. For detailed information on radiation interference detection please see page 3–275. Uni-Probe LB 491 3 – 211 Berthold Technologies GmbH & Co. KG...
Volume 3 PULSE RATE LIMITS 2.21 1 UP. LIMIT DENSITY Upper pulse rate limit The value 0 disables the function. This function is enabled only for special applications. Enter a value unequal to zero to enable the upper threshold. If the current pulse rate exceeds the upper threshold, the measurement is halted until the pulse rate has dropped below this threshold again.
2 LIQUID DENSITY Enter the density of the carrier liquid or for liquid mixtures the den- sity of the attendant component. 3 SOLID DENSITY Enter the solid density. Uni-Probe LB 491 3 – 213 Berthold Technologies GmbH & Co. KG...
Volume 3 CALIBRATION I/O 2.24 1 CALIBRATION DENSITY Shows the parameters for the calibration and the storage option for complete calibration data sets. 2 INPUT / OUTPUT Shows the parameters for the current output and the relay outputs. CALIBRATION 2.25 1 CALIBRATION DATA DENSITY Opens the calibration window.
Opens the parameter input for modification of the calibration curve with offset and factor. 6 SET BACKGROUND Determines the background rate. The calibration sequence is described in detail in Volume 3, section 4.1. Uni-Probe LB 491 3 – 215 Berthold Technologies GmbH & Co. KG...
Volume 3 ENTER CAL. DATA 2.27 Here you can enter or measure the calibration data. DENSITY Enter Calibration Mode: The calibration sequence is described in detail in Volume 3, linear one-point section 4. linear square cubic ENTER CALIBRATION MODE automatic Here you define which linearization function is to be used to calcu- late the final characteristic curve from the calibration points.
Offset 0.0000 The factor may be between 0 and 10. If you do a new calibration, the values will be reset: Factor = 1 and Offset = 0. Uni-Probe LB 491 3 – 217 Berthold Technologies GmbH & Co. KG...
Volume 3 SAVE & LOAD CURVE 2.29 1 SAVE DENSITY Saves the existing calibration data set to a separate memory in the Uni-Probe. From there, you can restore them any time with LOAD 2 LOAD Loads the saved calibration data set and overwrites the existing calibration.
If you have selected Value or Value, min/max following under , then enter here the desired current between 3 and ALARM CODE 24mA. In case of error the current output will continue with the selected value. Uni-Probe LB 491 3 – 219 Berthold Technologies GmbH & Co. KG...
Volume 3 CIN1 (TEMP) 2.33 1 20 mA DENSITY Enter the temperature value for the upper current limit value. CIn1 (Temp) 20 mA 100.0 degC 2 0/4 mA 0/4 mA 0.0 degC Range Selection Enter the temperature value for the lower current limit value. Which current limit value will be used is defined under RANGE SEND...
If the density exceeds 1.135g/cm , the relay is set to the alarm sta- tus. If the density then falls below 1.085g/cm , the relay is set back to Normal. Uni-Probe LB 491 3 – 221 Berthold Technologies GmbH & Co. KG...
Volume 3 DIGITAL INPUTS 2.35 1 INPUT DENSITY Since only one input is available (DigIn1), you cannot make any Digital Inputs selection at this point. Input DigIn1 Function disabled 2 FUNCTION Enable or disable the digital input. SEND • Enabled: The input is active. •...
You always have to perform a test calculation after a calibration. In this manner, you will ensure that your calibration data are plausible and the device has been set up correctly. Uni-Probe LB 491 3 – 223 Berthold Technologies GmbH & Co. KG...
Volume 3 I/O Test 2.38 1 STATUS DIG. INPUT DENSITY Check the status of the digital inputs. 2 DIGITAL OUTPUT TEST Current I/O Opens the relay test window. Adjust Pt 100 3 CURRENT I/O Current outputs test and adjustment of current output. 4 ADJUST Pt100 Adjustment of the Pt100 input.
In a menu-guided process, 4 mA and 20 mA are defaulted one after the other. You are prompted to enter the actual value displayed on your current meter. Uni-Probe LB 491 3 – 225 Berthold Technologies GmbH & Co. KG...
Volume 3 ANALOG INPUT 1/2 2.43 1 CIN1/2 Shows the value of current input 1 or 2. 2 ADJUST CIN 1/2 With this function you can adjust current input 1 or 2. Remove the current input signal and connect an adjustable power source to the input.
Reset the value to “0” as soon as the test is finished. 2 HV DEFAULT This value is defaulted by Berthold Technologies and has to be set new only after replacement of the detector or the multiplier. After power failure, the Uni-Probe starts with this HV. Thus, the Uni- Probe quickly adjusts to the operating point.
Volume 3 PLATEAU 2.47 1 MEASURE PLATEAU DENSITY Select to start the plateau measurement. MEASURE PLATEAU This function also allows you to edit the parameters for recording the plateau. How to record a plateau is described in detail on page 3–269. 2 SHOW PLATEAU Shows the value pairs of the data points that have been recorded with...
Then only the digital HART communication will be available. IMPORTANT ® For safe HART communication, the current output has a maxi- mum impedance of minimum 250Ohm and maximum 500Ohm. Uni-Probe LB 491 3 – 229 Berthold Technologies GmbH & Co. KG...
® 3 Getting Started via the HART Communicator Volume 3 Setup Protocol 3.2.1 Parameter list Enter the parameters after commissioning into the following lists to document the start-up process. TAG No. Date Isotope Activity Source No. Detector Conveyor belt Product Function Range Setting...
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Lower Range Pt10/100 / Current / Off Temp. Compensation On / Off Suspension Meas. Mass Flow Alarm Code Error Value Function Threshold Hysteresis Function Threshold Hysteresis Function Threshold Hysteresis Uni-Probe LB 491 3 – 233 Berthold Technologies GmbH & Co. KG...
® 3 Getting Started via the HART Communicator Volume 3 Calibration Values After calibration, fill in the following tables: Number of calibration points Background Calibration Density in g/cm point 38478BA2B 3 – 234 27.5.08...
Volume 3 4 Calibration Calibration 1. The density measuring system Uni-Probe LB 491 must be Prerequisites for calibration with ® installed and connected correctly (Volume 1, sections 3 and 4). the HART Communicator 2. The pipeline must be filled completely.
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4 Calibration Volume 3 4.1.1 Reset Uni-Probe to Factory Settings If the following display is not visible, push to go to the HOME Start menu. DENSITY Select ACCESS TO SETUP Meas. Mode Density 0.9838 g/cm3 Message Select FULL ACCESS DENSITY Select SERVICE DENSITY...
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Confirm the successful action with DENSITY ® Now turn the HART Communicator OFF and ON again. The parameters in the Uni-Probe are now again identical with the factory setting. Uni-Probe LB 491 3 – 237 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 4.1.2 Setting the Detector HV IMPORTANT If the device is still in the original state as delivered, or if you are not sure if any modifications on the detector settings have been performed, then the setting of the detector HV prior to calibration is not required.
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This takes approx. 2 minutes. Read off the value HV READING Select and enter the read-off value there. HV DEFAULT DENSITY Save the changes with SEND This completes the detector HV settings. Uni-Probe LB 491 3 – 239 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 4.1.3 Setting the Basic Configuration This chapter describes how to perform a minimal basic setting to prepare the Uni-Probe for calibration. The date is updated and the isotope is set. If the following display is not visible, push to go to the HOME Start menu.
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Isotope Selection Units Selection Error Handling Select the isotope that is used in your Uni-Probe DENSITY Save the changes with SEND Isotope Selection This completes the basic settings. Uni-Probe LB 491 3 – 241 Berthold Technologies GmbH & Co. KG...
4 Calibration Volume 3 Measure Background The background has to be determined only if the count rates under operating conditions are very low, i.e. below 500 counts per sec- ond. In this case you have to carry out the measurement described below prior to the actual calibration.
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DENSITY The count rate reading-in process has started. If the process has been started with 0, it will take 30s until the count rate is read in. DENSITY Uni-Probe LB 491 3 – 243 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 Select DENSITY Set Pulse Rate to 38 cps? Confirm the dialog with DENSITY This completes the background measurement. 38478BA2B 3 – 244 27.5.08...
Additional density values are needed for multi-point calibration; the basic procedure is identical with two-point calibration. However, the Uni-Probe LB 491 does not use the linear connection between two data points as final characteristic curve, but a regression analysis will always be performed. Further options are available for the curve fit.
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4 Calibration Volume 3 4.3.1 Setting the Operating Mode for Calibration If the following display is not visible, push to go to the HOME Start menu. DENSITY Select ACCESS TO SETUP Meas. Mode Density 0.9838 g/cm3 Select FULL ACCESS* DENSITY FULL ACCESS CONFIG.
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See also "Curve fit" on page 3–245 and "Two- and Multi-Point Cali- automatic bration" on page 3–282. Save the changes with SAVE This completes the setting of the operating mode for the cal- ibration. Uni-Probe LB 491 3 – 247 Berthold Technologies GmbH & Co. KG...
4 Calibration Volume 3 Two- and Multi-Point Calibration Multi-point calibration can be based on a one-point calibration or it can be started new. Several samples have to be taken for calibra- tion and the product density values or concentrations have to be determined in the laboratory.
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PT. RATE ENTER Value 1.0000 g/cm3 Rate 10000 cps Temp 31.4 degC Send & Next Cal. Pt. Value Cal. Pt. Rate Cal. Pt. Temp. Done Uni-Probe LB 491 3 – 249 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 If you know it, you can also enter the count rate for the calibra- tion point directly ( ). If not, select and measure ENTER READ DENSITY the value. Confirm the entry with ENTER For more information on reading in count rates please see section 6.3.
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ACCESS TO SETUP FULL ACCESS SETUP CALIBRATION I/O CALIBRATION Select CALIBRATE DENSITY Cal. Data Enter Cal. Data Calibrate Show Cal. Coeff. Sq. Error 0.0012 Adjust Curve Set Background Uni-Probe LB 491 3 – 251 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 The calibration is checked. DENSITY If the calibration is without error, the window appears. If CAL. DATA an error is detected, a detailed error message is displayed (see DENSITY example below). For multi-point calibration, the deviation of the Cal.
(measurement -3.2851 uncertainty) of the calibration is essentially determined by this value. See also the absorption coefficients table in section 7.1 on page 3–297. Uni-Probe LB 491 3 – 253 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 Enter the length of the absorption path (measuring path in the product) and confirm with ENTER DENSITY Enter measuring The length of the absorption path corresponds to the internal path: diameter of the pipe which contains the product. 200.00 mm 200.00 Select...
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When you have come to the last calibration point, push Cal. Pt. Temp. DONE instead of to complete the calibration. Done SEND & NEXT This completes the determination of the calibration points. Uni-Probe LB 491 3 – 255 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 4.5.2 Check Calibration Check the calibration as described on page 3–251. This completes the calibration check and the one-point cali- bration. You always have to perform a test calculation after a calibration. In this manner you will ensure that your calibration data is plausible and the device has been set up correctly (see section 2.37 on page 3–223).
If the Start menu is not yet displayed, push to go to the HOME Start menu. DENSITY Select ACCESS TO SETUP Meas. Mode Density 0.9838 g/cm3 Message Select FULL ACCESS DENSITY Select CONFIGURATION DENSITY Parameter Setup Uni-Probe LB 491 3 – 257 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 Select MEASURE PARAMETER DENSITY Measure Parameter Select SUSPENSION MEAS. DENSITY 1 Damping Data Temp. Compensation Suspension Meas. Select SUSPENSION MEAS. DENSITY Suspension Meas. Mode Susp. Select and confirm with ENTER DENSITY Mode Susp. Select LIQUID DENSITY DENSITY Suspension Meas.
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Enter the solid density determined in the laboratory and con- firm with ENTER DENSITY Solid Density 2.6500 g/cm3 2.6371 Select to transfer the values to the Uni-Probe LB 491. SEND DENSITY Suspension Meas. Mode Susp. Liquid Density Solid Density 4.6.2...
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4 Calibration Volume 3 Select FULL ACCESS DENSITY Select CONFIGURATION DENSITY Parameter Setup Select SYSTEM PARAMETER DENSITY Select UNITS SELECTION DENSITY Change Meas. Mode Isotope Selection Units Selection Error Handling First, select the unit for the density measurement, then the unit for the concentration measurement and finally the unit of the DENSITY temperature reading, if it is not Celsius (degC).
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You always have to perform a test calculation after a calibration. In this manner you will ensure that your calibration data is plausible and the device has been set up correctly (see section 2.37 on page 3–223). Uni-Probe LB 491 3 – 261 Berthold Technologies GmbH & Co. KG...
4 Calibration Volume 3 Temperature Compensation Temperature fluctuations in the product to be measured are usually associated with density fluctuations. This means that a changed density is indicated, although the concentration of the product did not change. Temperature compensation helps to avoid this prob- lem.
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Concentr. change – with Density at average temperature and lowest ρ concentration in the measuring range Density at average temperature and maximum ρ concentration in the measuring range Uni-Probe LB 491 3 – 263 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 Example: ρ at 20°C and 20% HCl 1.0979g/cm at 20°C and 30% HCl 1.1493g/cm ρ Δρ 1.0979 1.1493 – ------- - -------------------------------------- - 0.00514 ------------------ - ΔC 20% 30% – ⋅ The temperature coefficient TC' for the unit % is calculated as fol- lows: 0.00059 --------- -...
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6. Change temperature of product in the measuring path through heating or cooling by approx. 10 to 15°C. 7. Note down this density or concentration value ρ and also the associated temperature ϑ Uni-Probe LB 491 3 – 265 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 8. Calculate the temperature coefficient as follows: ρ ρ – – ----------------- - ϑ ϑ – 9. Enter this temperature coefficient in TC . TC must contain zero. 10. Enable temperature compensation in the device configuration. The same density or concentration value as noted under 4.
1.25 1.1 – nominal nominal ------------------------------------------- ----------------------- - – 1.2 1.1 – actual actual Calculation of the offset: F ⋅ ⋅ – – 1.1 1.5 – 0.55 nominal actual Uni-Probe LB 491 3 – 267 Berthold Technologies GmbH & Co. KG...
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4 Calibration Volume 3 with upper value of the measuring range in g/cm lower value of the measuring range in g/cm The same is true if upper and lower point of the measuring range are to be changed by different values. Example: 1.12g/cm actual...
Enter the high voltage where the plateau measurement should start and confirm the input with ENTER DENSITY Enter the high voltage where the plateau measurement should end and confirm the input with ENTER DENSITY Uni-Probe LB 491 3 – 269 Berthold Technologies GmbH & Co. KG...
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5 Functional Processes Volume 3 Enter the step size of measurement points and confirm the entry with ENTER DENSITY step The step size determines the number of value pairs. The larger the size: step size, the lower the number of value pairs. Enter the time of how long a measurement point should be measured or the count rate is to be averaged and confirm the DENSITY...
Prerequisite for changing the password is that you have access to the level CHANGE PASSWORD Proceeding from the Start menu, select the menu for changing the password as follows: ACCESS TO SETUP FULL ACCESS Uni-Probe LB 491 3 – 271 Berthold Technologies GmbH & Co. KG...
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5 Functional Processes Volume 3 CHANGE PASSWORD. Select DENSITY Parameter Setup Configuration 4 Change password Select the level(s) for which you want to change the password. DENSITY In our example the level has been selected. CONFIGURATION Please enter password level to change: Read Only Enter the current password.
15m), or behind a thick concrete wall. Detector Detector Fig. 6-1 Best solution 1) Operating conditions = installed, opened source and filled pipeline with an average density of the product. Uni-Probe LB 491 3 – 273 Berthold Technologies GmbH & Co. KG...
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6 Explanations Volume 3 With full pipeline or full tank, installed detector and installed shield- Second best solution ing, built in radiation source and closed radiation exit channel. Source with closed shutter Detector Fig. 6-2 Second best solution 38478BA2B 3 – 274 27.5.08...
Is > Im + n * Sigma Im = current count rate integrated over one second n = multiple value of Sigma Uni-Probe LB 491 3 – 275 Berthold Technologies GmbH & Co. KG...
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6 Explanations Volume 3 A relative limit value is monitored, i.e. the alarm threshold is Further information on scenario A: reached when exceeding a maximum dose rate (calibration value at empty vessel) at the detector. False alarms due to operative factors are not possible. However, only stronger interfering radiation is detected.
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At the end of the waiting time the system checks if the arriving count rate is smaller than 1.5-times the calibrated empty count with Sigma check rate (Io). ?? Nach Ablauf der Totzeit ist auch die Sigma-Erkennung wieder aktiv?? Uni-Probe LB 491 3 – 277 Berthold Technologies GmbH & Co. KG...
6 Explanations Volume 3 Reading-in Pulse Rates For each calibration you have to read-in or enter count rates. Please refer to section 4 for more information on this procedure. Read or Enter count rate? The count rate can be read-in or entered. Typically, the pulse rate is read in.
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Notice: The count rates displayed in our example may be significantly higher or lower, depending on the application. Select DENSITY Set Pulse Rate to 6522 cps? Confirm the dialog with DENSITY 6522 Uni-Probe LB 491 3 – 279 Berthold Technologies GmbH & Co. KG...
6 Explanations Volume 3 Calibration Modes The Uni-Probe LB 491 offers five calibration modes: 1. One-point calibration This type of calibration can be used in many applications. You have to enter or measure the absorption coefficient, the length of the absorption path and one calibration point. You should chose this calibration mode if –...
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One-point calibration is also advisable if only calibration points with very minor density differences can be recorded; in this case minor errors in the lab or during sampling will significantly affect the curve. Uni-Probe LB 491 3 – 281 Berthold Technologies GmbH & Co. KG...
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6 Explanations Volume 3 Influence of an incorrect absorption coefficient The curve obtained with one-point calibration always passes through the calibration point. The gradient of the curve is deter- mined by the entered absorption coefficient and may therefore be somewhat inaccurate. Figure 6-4 illustrates the effect an inaccurate coefficient may have on the calibration.
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To avoid calibration errors, the product temperature is stored in the Uni-Probe LB 491. When cal- culating the calibration curve, the entered laboratory value is cor- rected using the temperature coefficient.
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6 Explanations Volume 3 This correction is carried out only if – Temperature compensation has been enabled (see section 2.22 on page 3–213) – at least one temperature coefficient has been entered (see section 2.22 on page 3–213). The corrected lab values based on which the calibration curve is calculated are displayed after the coefficients and the square error, if temperature compensation has been enabled for calibration.
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(square, cubic). In the calibration mode Automatic the decision for the most appropriate curve shape for the data is made by the Uni-Probe LB 491. View the following data and check the calibration if you detect any deviation:...
6 Explanations Volume 3 Measurement of Suspensions Clear correlation of density and concentration is possible only if • liquid density • solid density are constant. Density or concentration measurements of suspensions can be car- ried out in these units: 1. Density in g/cm 2.
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For solutions or liquid mixtures, large deviations may occur when the measurement involves larger ranges. The flowchart in Fig. 6-7 shows how the density measuring system converts units of measure. Uni-Probe LB 491 3 – 287 Berthold Technologies GmbH & Co. KG...
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O (ρ ) at 20°C 0.99823g/cm ⋅ 0.2 0.99823 ρ ----------------------------------------- - 1.8294 0.99823 ------------------ - 1 – 1.0980 Input for liquid density 0.99823 Input for solid density 1.8294 Uni-Probe LB 491 3 – 289 Berthold Technologies GmbH & Co. KG...
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6 Explanations Volume 3 Table values of the example are available as concentration in g/l In this case it holds: S ρ ⋅ ρ ------------------------ - ρ ρ – = Density of mixture in g/cm at average concentration ρ = Density of component to be measured (solid density)) ρ...
(DD) LB 491. The Device Description is the user interface the ® HART Communicator requires to operate the respective device, e.g. the Uni-Probe LB 491. Each device requires its own DD. 6.6.1 Software Management If the Start menu is not displayed, push HOME to go to the Start Show software versions menu.
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6 Explanations Volume 3 Select BERTHOLD TECHNOLOGIES. Select LB 491. HART Communicator Model 1 LB490 2 LB491 Here you can read off the revision of the Device Description (DD). In our example it is the DD with revision 3. Type of modifications ®...
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Software versions (indicated on the HART Communicator under … REVIEW under … SIMULATION Software version Software rev Fld dev rev Dev v 1.01 1.02 1.03 1.04 1.10 1.20 1.21 2.00 3.00 Uni-Probe LB 491 3 – 293 Berthold Technologies GmbH & Co. KG...
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The software release of the embedded software in the Uni-Probe is described by the following three identifications: • Software version: Version name used by Berthold, e.g. 1.20 – It is needed when the embedded software of the Uni-Probe is to be updated.The version appears in the file name, e.g.
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Therefore, the Generic DD is used. However, in the Generic DD you cannot carry out a calibration and many parameters for the Uni-Probe are missing. ® All Berthold-DD’s require the Universal Commands for HART 5 or Universal Revision higher.
7 Tables Volume 3 Temperature coefficients Water temperature coefficients can be used for many low concen- tration products, such as milk, beer, whey, starch suspension, etc. For upgraded milk, whey, cottage cheese, etc. the values given for sugar solution can be used with good approximation. Temperature coefficients for water Temperature in Input value at g/cm...
7 Tables Volume 3 Density of Water as a Function of the Temperature Temp. in °C Density in g/cm Temp. in °C Density in g/cm Temp. in °C Density in g/cm 0.99973 0.99224 0.97781 0.99963 0.99185 0.97723 0.99951 0.99146 0.97665 0.99939 0.99106 0.97607...
A Hardware Reset is always followed by a Watchdog Fail, error 13! The Hardware Reset error 14 is also listed in the error log. Uni-Probe LB 491 3 – 301 Berthold Technologies GmbH & Co. KG...
8 Error Handling Volume 3 Error Handling Modes The operation mode Continue or Stop can be set on the ERROR HAN- menu see page page 3–207). DLING Both operation modes behave as follows: • Continue measurement: If the error disappears, the measurement automatically goes to the RUN mode.
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0. Warning Rad. Interference Interference radiation detected, Wait for set waiting time. The sys- possibly due to welding check. tem automatically switches to the Run mode. Uni-Probe LB 491 3 – 303 Berthold Technologies GmbH & Co. KG...
8 Error Handling Volume 3 Reset The Uni-Probe can be reset as follows: 1. Software reset Via the parameter Factory Settings on the Service menu. ® All parameters will be reset to their defaults. Power the HART Communicator off and on again after using this function. 2.
Uni-Probe responds immediately, as soon as the error occurs again. The next window is the one that has been displayed prior to the error message. Uni-Probe LB 491 3 – 305 Berthold Technologies GmbH & Co. KG...
8 Error Handling Volume 3 Fault Current There are five different ways of how the current output should respond to errors: • High: Hold at 24 mA. • Low: Hold at 3 mA. • Hold: Hold last measured value. • Value: Hold at a selected value between 3 and 24 mA.
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The min. relay is set to normal. Value: 24mA 20mA Fig. 8-3 Example for value 22 mA For further information on entering the Error Value please refer to page 3–219. Uni-Probe LB 491 3 – 307 Berthold Technologies GmbH & Co. KG...
LB 491 Vers Descriptor Message Distributor Meas. Mode Co, Cs Isotope Unit Selection Temp. Unit Error Handling Time Constant Damping Mode Interference Mode Sigma Pulse Rate Upper Limit Uni-Probe LB 491 3 – 309 Berthold Technologies GmbH & Co. KG...
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9 Setup Protocol Volume 3 Function Range Setting Pulse Rate Lower Limit Upper Range Lower Range Pt10/100 / Current / Off Temp. Compensation On / Off Suspension Meas. Mass Flow Alarm Code Error Value Function Threshold Hysteresis Function Threshold Hysteresis Function Threshold Hysteresis...
Volume 3 9 Setup Protocol Calibration Values After calibration, fill in the following tables: Number of calibration points Background Calibration Density in g/cm point Uni-Probe LB 491 3 – 311 Berthold Technologies GmbH & Co. KG...
PC Connection to the Uni-Probe Practical example for PC connection: 1. Connection with active current output 2. Connection with passive current output 3. Connection with passive current output and instrumentation Uni-Probe LB 491 4 – 317 Berthold Technologies GmbH & Co. KG...
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1 PC Connection to the Uni-Probe Volume 4 38478BA2B 4 – 318 27.5.08...
Software requirements • Windows NT 4.0, Service Pack 4 and higher • Windows 2000 • Windows XP Operation under Windows 95, Windows 98 or Windows Millennium is not possible. Uni-Probe LB 491 4 – 319 Berthold Technologies GmbH & Co. KG...
2 Installing and Working with DTM Volume 4 IMPORTANT ® The Microsoft .NET Runtime environment version 1.1.4322.573 or higher must be installed on the PC. You can download the latest version free of charge from Microsoft in the download section. For Windows NT and 2000 you have to install the software “dotnetfx.exe”...
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LB490 and LB491. Next you have to define the type of communication, in this case Add device HART ® communication. Click on the respective button below the project window. Uni-Probe LB 491 4 – 321 Berthold Technologies GmbH & Co. KG...
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2 Installing and Working with DTM Volume 4 Select the device and confirm by clicking The device is now displayed in the project window. Now connect a resistor with a value between 250Ω and 500Ω to the terminals 51/52 of the Uni-Probe. Power on the Uni-Probe.
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Volume 4 2 Installing and Working with DTM Select the installed device in the project window and establish the connection by clicking on the button. Connect Uni-Probe LB 491 4 – 323 Berthold Technologies GmbH & Co. KG...
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2 Installing and Working with DTM Volume 4 Click on the button to define the param- Edit device parameter eter setting. You can also view current measured values or the defined parameter values. For more explanations on the individual menus, please refer to Vol- ume 3, chapter 2, "Menu Structure".
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Volume 5 Volume 5 of the Uni-Probe LB 491 User’s Manual is a supplement to About this User’s Manual: the standard documentation of the density measuring system Uni- Probe LB 491 and includes instructions for operation of the system with SIMATIC PDM.
Establish the connection between PC and Uni-Probe via the HART modem. Practical examples for PC connection: 1. Connection with active current output 2. Connection with passive current output 3. Connection with passive current output and instrumentation Uni-Probe LB 491 5 – 329 Berthold Technologies GmbH & Co. KG...
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1 PC Connection to the Uni-Probe Volume 5 Please observe the information on the Fifo buffer (see page 5–332) ® if you are working with a HART modem with USB port. 38478BA2B 5 – 330 27.5.08...
IMPORTANT This User’s Manual describes all functions of the SIMATIC PDM soft- ware you need to work with the Density Meter Uni-Probe LB 491. For further Information on the SIMATIC Manager Step 7 and SIMATIC PDM please refer to the respective SIEMENS documenta- tion.
2 General Information on SIMATIC PDM Volume 5 Hardware Requirements • PC with Windows 2000 or higher ® • HART modem with RS-232, USB, or PCMCIA interface • Field device, e.g. Uni-Probe ® Connect the HART modem to the current output. The current out- put has to be terminated with a resistance of min.
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Volume 5 2 General Information on SIMATIC PDM Select the tab. HARDWARE Open the DEVICE MANAGER Select the menu for setting the properties of the communication port. Uni-Probe LB 491 5 – 333 Berthold Technologies GmbH & Co. KG...
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2 General Information on SIMATIC PDM Volume 5 Select and click on Advanced… PORT SETTINGS Disable the Fifo buffer (no checkmark in the checkbox) and click OK to confirm the setting. 38478BA2B 5 – 334 27.5.08...
• authorization IMPORTANT The authorization can either be carried during the first installation of the software or later (see section 3.2.3). Uni-Probe LB 491 5 – 335 Berthold Technologies GmbH & Co. KG...
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3 Getting Started with SIMATIC PDM Volume 5 3.2.3 Authorizing SIMATIC PDM A product-specific authorization (license to use) is needed in order to work with SIMATIC PDM. The software can only be used if the authorization required for the program is detected on the hard disk of the respective PC/PG.
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Select the license in the right window and click on SIMATIC PDM the Retransfer Authorization button. IMPORTANT Make sure disk drive A: has been selected as destination path. Uni-Probe LB 491 5 – 337 Berthold Technologies GmbH & Co. KG...
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3 Getting Started with SIMATIC PDM Volume 5 The license is transferred from the local hard drive to the authorization disk. Now you can transfer the authorization to another PC. Close the software. AUTHORSW This completes the retransfer procedure. 3.2.4 Uninstalling SIMATIC PDM Use the usual Windows procedure to uninstall SIMATIC PDM: Start the dialog for installation/uninstallation of software by...
Description If you have an older version of the SIMATIC PDM software installed on your system, it may happen that the Uni-Probe LB 491 Device Description (Uni-Probe LB 491 DD) is not yet installed in your soft- ware. Please proceed as follows to re-install it:...
Project Setup IMPORTANT ® The Uni-Probe LB 491 has to be connected to the PC via a HART modem (see Volume 1 , section 2.1.1). The SIMATIC PDM software including the Uni-Probe DD has to be installed on the PC (see Volume 5 , section 3.2).
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Open the network structure: • Double-click on in the right-hand section of the NETWORKS working window, or • Double-click on the project name in the left-hand section of the working window. Uni-Probe LB 491 5 – 341 Berthold Technologies GmbH & Co. KG...
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3 Getting Started with SIMATIC PDM Volume 5 ® Adding the HART Modem ® To add a HART modem, right-click on the icon and NETWORK select the menu item INSERT NEW OBJECT HART-MODEM Linking the COM interface In the left-hand window, select your PC: In our example: Click on 04333DT Open the window to configure the COM interface by clicking with...
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® The sensor is assigned to the respective HART device and the dialog window for defining the object properties opens. The project has now been set up completely. Uni-Probe LB 491 5 – 343 Berthold Technologies GmbH & Co. KG...
3 Getting Started with SIMATIC PDM Volume 5 Starting SIMATIC PDM Start SIMATIC PDM by double-clicking on the device icon (in our example LB491 A welcome screen and the dialog box appear. USER Select the user status, enter your password, if necessary (in the Specialist text box) and click OK.
4 Menu Overview Volume 5 FILE Menu menu includes general functions, for example, to save, FILE delete and compare files, to import and export parameters, to define the presentation, print options and printer settings, etc. menu includes the following menu items: FILE •...
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SIMATIC Manager. Parameters that differ from the current object are marked yellow in the table. Uni-Probe LB 491 5 – 347 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 After confirmation of the selection, a window appears and you can C: Compare with online data of select the object to be compared. another object Select the object to be compared and confirm the selection with After confirmation of the selection, the online data of the object of comparison are loaded and displayed to the right next to the offline data of the current project in the parameter table of the SIMATIC...
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Select the name and folder for saving the export data and con- firm the entry with Save. After successful export, the result window appears showing the result of the export. Uni-Probe LB 491 5 – 349 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Click Close to close the result window. Import… 4.1.5 Imports the configuration and parameterization data of the object. Select the file from which you wish to import data and confirm the selection with Open. Select the type of import and confirm the selection with OK. Additive import means that all objects in the import file are A: Additive Import inserted, regardless of whether identical objects already exist in...
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After successful import, the result window appears showing the result of the import (see above). PRINT… 4.1.6 Prints the parameter table. Print Preview 4.1.7 Shows the print preview of the parameter table. Uni-Probe LB 491 5 – 351 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 In print preview, you can scroll, zoom in or out, and print pages. The print preview setup can be changed on the Page Setup … menus. Labeling Fields... PRINTER SETUP 4.1.8 Defines the printer settings. PAGE SETUP…...
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4 Menu Overview Volume 5 GENERAL Enter the desired data in the text boxes of the dialog box. IMPORTANT The checkbox has to be ticked in order to OBJECT ACTIVATED... communicate with the Uni-Probe. If this checkbox is cleared, the object icon in the Process Device Network View is grayed out and the device is not available for communication.
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IMPORTANT The device data displayed here have been defined during the device or object setup and cannot be changed at this point. UPLOAD TO PC/PROGRAMMING DEVICE Uni-Probe LB 491 5 – 355 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 On the tab, the status, the UPLOAD TO PC/PROGRAMMING DEVICE time of occurrence, error messages and warning messages on the last loading process performed (data from device to PC) are dis- played. DOWNLOAD TO DEVICE On the tab, the status, the time of occur- DOWNLOAD TO DEVICE...
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IMPORT On the tab, data, error messages and warning messages IMPORT on the last data import performed or on the export of the import file are displayed. Uni-Probe LB 491 5 – 357 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 CONNECTION The short address of the Uni-Probe is displayed. EXIT 4.1.13 Closes SIMATIC PDM. 38478BA2B 5 – 358 27.5.08...
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4 Menu Overview Volume 5 Description of the Menu Items COMMUNICATION PATH 4.2.1 Shows the current communication path of the object. DOWNLOAD TO DEVICE… 4.2.2 Downloads the parameters on the parameter list to the device(s). Device is already selected in the Selection group box. Select the settings for the parameter download by ticking the checkbox(es) in the Settings group box.
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UPDATE DIAGNOSTIC STATUS to start communication and to update the status. This is indicated by a changed device icon in the parameter group box in the SIMATIC PDM main window. Uni-Probe LB 491 5 – 361 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 DEVICE STATUS 4.2.5 Shows the device status and the error list. 38478BA2B 5 – 362 27.5.08...
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Select to display all values of the calibration SHOW CAL. DATA curve. The next window is displayed as soon as you confirm a win- dow with OK. … Uni-Probe LB 491 5 – 363 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 VIEW PARAMETERS STATUS ERROR LOG 4.2.7 The current operation mode is displayed in the OP MODE text boxes. MEASUREMENT MODE Click on the Show Error log button to view the error log. PASSWORD 4.2.8 In this dialog box, you can define, edit and activate the password. 38478BA2B 5 –...
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4 Menu Overview How to edit the password and activate the password level is described in detail in section 6.2. CONFIGURATION GENERAL DATA 4.2.9 Configuring the general device parameters. Uni-Probe LB 491 5 – 365 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Parameters Description Date Read or update the date. The correct date is important for the automatic decay compensation of the isotope. A battery keeps the clock running even when power supply is off. If the Uni-Probe has not been supplied with power for a longer period of time (several weeks), then the capacitor may be empty.
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5–449. Enter the parameters in the text boxes in the SYSTEM dialog box. PARAMETER Click Change Meas. Mode or Transfer to upload the setting to the Uni-Probe. Uni-Probe LB 491 5 – 367 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 UNITS SELECTION Select the unit for the density reading and choose if the tempera- ture is to be displayed in °Celsius or °Fahrenheit. This unit is used for the probe temperature. CONFIGURATION MEASURE PARAMETER 4.2.11 DAMPING DATA 38478BA2B 5 –...
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1 x T = single measurement time – standard: 20 s 3 x T = virtually corresponds to the end value The time constant corresponds in its function to an RC element. τ = R x C Uni-Probe LB 491 5 – 369 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Parameters Description • No: without rapid switchover Fast switch • Yes: with rapid switchover The use of the function RAPID SWITCH is recommended only for special applications where the output signal has to adapt quickly to the new value.
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DELAY TIME interference detection is enabled. Enter the parameters in the text boxes of the RAD. dialog box. INTERFERENCE Click Transfer to upload the settings to the Uni-Probe. Uni-Probe LB 491 5 – 371 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 CONFIGURATION MEASURE PARAMETER 4.2.13 PULSE RATE LIMITS Parameters Description Upper Limit Max Upper count rate limit Enter 0 to disable this function. This function is enabled only for special applications. Enter a value unequal to zero to enable the upper threshold. If the current count rate exceeds the upper threshold, the measurement is halted until the count rate has dropped below this threshold again.
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With linear compensation TC2 = 0. For further information on temperature compensation please refer to section 7.4.3 on page 5–441. Uni-Probe LB 491 5 – 373 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 CONFIGURATION MEASURE PARAMETER 4.2.15 SUSPENSION MEASUREMENT This function allows you to perform suspension measurements (and calibrations). After enabling this measurement mode, you have to enter the den- sity of the carrier liquid and, with liquid mixtures, the density of the attendant component and the solid density.
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Select if you want to enter or read the count rate and click OK to confirm your selection (see section 7.3). How to proceed is described in detail in section 5.2, page 5–412. CALIBRATION CALIBRATE 4.2.18 Check calibration. Uni-Probe LB 491 5 – 375 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Upon successful completion of the check, the following dialog box appears. How to proceed is described in detail in section 5.5.2, page 5–422. CALIBRATION CALIBRIATION DATA VIEW 4.2.19 Allows you to view the calibration data. 38478BA2B 5 –...
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If density values fall below the lower limit value, the current output can follow up to max. 3.9 mA. This makes it easier to detect measured values that are slightly lower than the expected minimum density. Uni-Probe LB 491 5 – 377 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Parameters Description Alarm Code Operating mode for the current output in case of error. If an error is identified, the error relay is set to alarm and the current out- put is set to a value which can be defined here. The current output may respond to errors as follows: •...
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FUNCT. Threshold Enter the limit value (threshold) for the relay to trigger an alarm. Hysteresis Enter the switching hysteresis for the respective relay. Uni-Probe LB 491 5 – 379 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Setting: Max. relay; forward break-over point: 1.135g/cm Example hyst. 0.05g/cm If the density exceeds 1.135g/cm , the relay is set to the alarm status. If the density then falls below 1.085g/cm , the relay is set back to normal.
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Test digital outputs. DO 1 … DO 4 Select a digital output and then click OK to check it. ABORT Select and then click OK to terminate the test. ABORT Uni-Probe LB 491 5 – 381 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Check the status of the digital outputs 1 to 4. Change the digital output status open/shorted and measure at the connecting terminal if the digital output has switched cor- rectly. SERVICE I/O TEST CURRENT OUTPUT 4.2.26 Check current output.
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Check whether the current indicates the right value in the pro- cess control system or connect a current meter to the current output to measure the actual value. Confirm with OK. Uni-Probe LB 491 5 – 383 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 IMPORTANT The impedance on the current output must always be lower than 500 Ohm. When you exit the menu, you will be prompted to turn the control on again. Turn the control on again and confirm with OK. D/A TRIM This function allows you to adjust the current output.
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, you have to enter the measured value again in the dialog box in the text box (see page 5–384) and INPUT NEW VALUE repeat the adjustment by clicking OK. Uni-Probe LB 491 5 – 385 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Confirm with OK. Measure the output current with a multimeter. Enter the measured current value in the text box NEW VALUE and confirm the entry with OK. Measure the output current again with a multimeter. If the output current is equal to 20 mA, select Select if the output current is unequal to 20 mA.
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Remove the Pt100 temperature sensor from the input and con- nected a resistor bridge. In a menu-guided sequence you will be prompted to activate different resistance values one after the other. Uni-Probe LB 491 5 – 387 Berthold Technologies GmbH & Co. KG...
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HV Settings (page 5–389) PROBE SETTINGS Shows the detector code for automatic HV-control. If you are work- ing with the Uni-Probe LB 491 with point detector, this text box must contain 0. Enter the detector code and upload the setting to the Uni-Probe by clicking on Transfer.
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This is done by transferring the self-adjusted HV value to the HV Default. A point detector needs approx. 5 minutes after power on to adjust. Uni-Probe LB 491 5 – 389 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Enter the parameters in the text boxes of the dia- HV SETTINGS log box and upload the settings to the Uni-Probe by clicking on Transfer. SERVICE PLATEAU MEASURE PLATEAU 4.2.29 Starts the plateau measurement. Select to start the plateau measurement.
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FACTORY SETTINGS 4.2.31 Resets all values of the Uni-Probe to standard values. For more information on restoring the factory settings please refer to section 5.1.1 on page 5–408. Uni-Probe LB 491 5 – 391 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 HARDWARE RESET 4.2.32 Resets the CPU without changing the data that has been set. Select HARDWARE RESET Click OK to start the hardware reset. The hardware reset is carried out. Click OK to confirm the hardware reset. 38478BA2B 5 –...
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Enter the polling address if more than one HART devices is to be used in one loop. Otherwise, leave the value at 0. Click Transfer to upload the setting to the Uni-Probe. Uni-Probe LB 491 5 – 393 Berthold Technologies GmbH & Co. KG...
4 Menu Overview Volume 5 VIEW Menu menu includes setup options for program view and a live VIEW display of the measured value. menu includes the following items: VIEW • Live Display (page 5–394) • Y t diagram (page 5–396) •...
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Shows the current temperature inside the probe. The sensor is located on the electronic board. The temperature can be indicated in Fahrenheit or in Celsius. The corresponding unit is selected during device configuration. Uni-Probe LB 491 5 – 395 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Y T DIAGRAM 4.3.2 Shows a trend view of the measured values. Four trend curves are displayed over time: • Process factor • Pulse rate • HV reading • Temperature The temperature unit is changed relative to the temperature unit in the device.
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Curves (page 5–399) On these tab you can define the trend curve. TREND The basic properties of the dialog box are defined on Y T DIAGRAM tab. TREND Uni-Probe LB 491 5 – 397 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 X-SCALE The value range and the color of the are defined on the X-SCALE tab. SCALE DATA SCALES The value range and the color of the of the various DATA SCALE trend curves are defined on the tab.
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TOOLBAR 4.3.3 Turns the toolbar in the software on or off. STATUS BAR 4.3.4 Turns the status bar on or off. UPDATE 4.3.5 Updates the window contents. Uni-Probe LB 491 5 – 399 Berthold Technologies GmbH & Co. KG...
OPTIONS you to import HCF catalogs and to open various program modules. menu includes the following menu items that are OPTIONS important to the Uni-Probe LB 491: • Settings… (page 5–400) • Display Subentries (page 5–406) •...
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Enter the new password into the NEW PASSWORD text boxes CONFIRMATION Confirm the entry with OK. SIMATIC PDM shows an overview of all device parameters in a table TABLE (see page 5–458). Uni-Probe LB 491 5 – 401 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 On the tab you can define the behavior after an input and TABLE the layout in the display and during printing. Select the options for the parameter table and confirm the set- tings with OK. On the tab you can set the fonts used for the display and for FONT...
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Define the font format for the parameter table and confirm the settings with OK. On the tab you define the cycle time and the COMMUNICATION COMMUNICATION options for the error lists. Uni-Probe LB 491 5 – 403 Berthold Technologies GmbH & Co. KG...
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4 Menu Overview Volume 5 Select the option for the communication error list and, if neces- sary, change the cycle time. IMPORTANT After installation, the cycle time is set to 1000ms for periodic com- munication jobs (corresponding to 1s). You should not reduce this value too much.
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Volume 5 4 Menu Overview Define the log settings and confirm with OK. SIMATIC PDM allows you to define the file path of the STEP 7 MAINTENANCE STATION project. Uni-Probe LB 491 5 – 405 Berthold Technologies GmbH & Co. KG...
4 Menu Overview Volume 5 DISPLAY SUBENTRIES 4.4.2 has ben activated (indicated by check- DISPLAY SUBENTRIES mark in front of this menu item), all subgroups of the selected parameter group are also displayed. Deselected Selected HART SERVER 4.4.3 Select to start the program module HART Server HART SERVER (only if it is installed).
5 Calibration with SIMATIC PDM Calibration with SIMATIC PDM • The density measuring system Uni-Probe LB 491 must be in- Prerequisites for calibration stalled and connected correctly (Volume 1 , sections 3 and 4). • SIMATIC PDM and the Uni-Probe Device Description must be in- stalled and configured correctly (see Volume 5 , section 3.2 and...
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5 Calibration with SIMATIC PDM Volume 5 5.1.1 Reset Uni-Probe to Factory Settings Select DEVICE SERVICE FACTORY SETTINGS You will be alerted that all user-defined configurations will be reset to factory-set values. If you want to continue resetting the values, confirm this step with OK.
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HV SETUP Click Transfer to send the parameter changes to the Uni-Probe. Wait until the HV ( ) has been set. This takes approx. HV READING 2 minutes. Uni-Probe LB 491 5 – 409 Berthold Technologies GmbH & Co. KG...
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5 Calibration with SIMATIC PDM Volume 5 Read off the and enter it in the box. HV READING HV DEFAULT Click Transfer to send the changed parameters to the Uni-Probe. This completes the detector HV settings. 5.1.3 Setting the Basic Configuration This chapter describes how to perform a minimal basic setting to prepare the Uni-Probe for calibration.
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ISOTOPE SELECTION Transfer button to send the changed parameters to the Uni- Probe. Click Close to exit the dialog box. This completes the basic setting. Uni-Probe LB 491 5 – 411 Berthold Technologies GmbH & Co. KG...
5 Calibration with SIMATIC PDM Volume 5 Measure Background The background has to be determined only if the count rates under operating conditions are very low, i.e. below 500 counts per sec- ond. In this case you have to carry out the measurement described below prior to the actual calibration.
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“0” it takes 30s until the count rate is read in. Select and confirm the dialog with OK. Confirm the dialog with OK. This completes the background measurement. Uni-Probe LB 491 5 – 413 Berthold Technologies GmbH & Co. KG...
5 Calibration with SIMATIC PDM Volume 5 Operation Modes for Calibration Once the basic configuration has been completed, you may start with the calibration. Three modes of calibration are possible: • Two- or multi-point calibration • One-point calibration • Suspension calibration Two-point calibration is the most frequently used calibration Two- and multi-point calibration method.
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See also section "7.4 Calibration Modes", page 5–438. Click OK to upload the setting to the Uni-Probe. Continue with the calibration. This completes the setting of the operating mode for the cal- ibration. Uni-Probe LB 491 5 – 415 Berthold Technologies GmbH & Co. KG...
5 Calibration with SIMATIC PDM Volume 5 Two- and Multi-Point Calibration A multi-point calibration can be based on a one-point calibration or it can be started new. Several samples have to be taken for calibra- tion and the product density values or concentrations have to be determined in the laboratory.
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Take a sample of your product and determine the density in the laboratory. Select and confirm with OK. If the temperature compensation has been enabled, the tem- perature will be measured automatically. Uni-Probe LB 491 5 – 417 Berthold Technologies GmbH & Co. KG...
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5 Calibration with SIMATIC PDM Volume 5 Select and confirm with OK. CAL. PT VALUE Enter the density value determined in the lab and confirm with The updated values for the first calibration points are displayed. Select to go to the second calibration point. SEND &...
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You always have to perform a test calculation after a calibration. This will ensure that your calibration data is plausible and the device has been set up correctly (see section 4.2.23, page 5–380). Uni-Probe LB 491 5 – 419 Berthold Technologies GmbH & Co. KG...
5 Calibration with SIMATIC PDM Volume 5 One-Point Calibration One-point calibration is used only if calibration of two density val- ues is not possible. Prerequisite is that the isotope (Co-60 or Cs- 137) has already been set up correctly (see section 5.1.3 on page 5–410).
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Take a sample of your product and determine the density in the laboratory. Select and confirm with OK. If the temperature compensation has been enabled, the tem- perature will be measured automatically. Uni-Probe LB 491 5 – 421 Berthold Technologies GmbH & Co. KG...
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5 Calibration with SIMATIC PDM Volume 5 Select and confirm with OK. CAL. PT VALUE Enter the density value determined in the lab and confirm with The updated values for the (first) calibration point are displayed. Select to transfer the values to the Uni-Probe SEND &...
. Enter the solid density measured in the laboratory in g/cm and send the values with Transfer to the Uni-Probe. Click Close to close the dialog. Uni-Probe LB 491 5 – 423 Berthold Technologies GmbH & Co. KG...
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5 Calibration with SIMATIC PDM Volume 5 5.6.2 Units Selection Select DEVICE CONFIGURATION SYSTEM PARAMETER First, select the unit for the density measurement, then the unit for the concentration measurement and finally the unit of the temperature reading, if it is not Celsius (degC). This completes the calibration of the suspension measure- ment.
START PLATEAU BY PUSHING OK BUTTON! Enter the high voltage to start the plateau measurement and click OK. Enter the high voltage to end the plateau measurement and click Uni-Probe LB 491 5 – 425 Berthold Technologies GmbH & Co. KG...
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6 Functional Processes Volume 5 Enter the step size of measurement points and click OK. The step size determines the number of value pairs. The larger the step width, the lower the number of value pairs! Enter the time of how long a measurement point should be mea- sured or the pulse rate is to be averaged and click OK.
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Always confirm the value pairs by clicking OK until you get to the dialog box REACHED LAST ENTRY! Click OK to close the dialog box. This completes the display of the measured values. Uni-Probe LB 491 5 – 427 Berthold Technologies GmbH & Co. KG...
6 Functional Processes Volume 5 Changing the Uni-Probe Password Passwords rule out that parameters can be changed by unautho- rized persons. To allow you to check the Uni-Probe even in the locked status, the levels LIVE DISPLAY VIEW PARAMETER not password-protected and are therefore always accessible. On these levels, parameters can be read, but not edited.
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In our example the level has been CONFIG&CALIBRATE selected. Confirm the selection by clicking OK. Enter the old password and click OK. IMPORTANT The original password is UNIPROBE. Uni-Probe LB 491 5 – 429 Berthold Technologies GmbH & Co. KG...
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6 Functional Processes Volume 5 Enter the new password and click OK. In our example the new password is “BERTHOLD”. IMPORTANT The new password may have max. eight characters or digits. Char- acters and digits may be mixed as desired.
15m), or behind a thick concrete wall. Detector Detector Fig. 7-1 Best solution 1) Operating conditions = installed, opened source and pipeline filled with an average density of the product. Uni-Probe LB 491 5 – 431 Berthold Technologies GmbH & Co. KG...
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7 Explanations Volume 5 With full pipeline or full tank, detector installed and shielding Second best solution installed, radiation source built in and radiation exit channel closed. Source with closed shutter Detector Fig. 7-2 Second best solution 38478BA2B 5 – 432 27.5.08...
Is > Im + n * Sigma Im = current count rate integrated over one second n = multiple value of Sigma Uni-Probe LB 491 5 – 433 Berthold Technologies GmbH & Co. KG...
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7 Explanations Volume 5 A relative limit value is monitored, i.e. the alarm threshold is Further information on scenario A: reached when exceeding a maximum dose rate (calibration value at empty vessel) at the detector. False alarms due to operative factors are not possible. However, only stronger interfering radiation is detected.
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At the end of the waiting time the system checks if the arriving count rate is smaller than 1.5-times the calibrated empty count with Sigma check rate (Io). Uni-Probe LB 491 5 – 435 Berthold Technologies GmbH & Co. KG...
7 Explanations Volume 5 Reading-in Count Rates For each calibration you have to read-in or enter count rates. Please refer to section 5 for more information on this procedure. Read or Enter count rate? The count rate can be read-in or entered. Typically, the count rate is read in.
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7 Explanations Select and click OK. The count rate shown in our example (here for the background determination) can be significantly higher or lower, depending on the application. Uni-Probe LB 491 5 – 437 Berthold Technologies GmbH & Co. KG...
7 Explanations Volume 5 Calibration Modes The Uni-Probe LB 491 offers five calibration modes: 1. One-point calibration This type of calibration can be used in many applications. You have to enter or measure the absorption coefficient, the length of the absorption path and one calibration point. You should chose this calibration mode if –...
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One-point calibration is also advisable if only calibration points with very minor density differences can be recorded; in this case minor errors in the lab or during sampling will significantly affect the curve. Uni-Probe LB 491 5 – 439 Berthold Technologies GmbH & Co. KG...
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7 Explanations Volume 5 Influence of an incorrect absorption coefficient The curve obtained with one-point calibration always passes through the calibration point. The gradient of the curve is deter- mined by the entered absorption coefficient and may therefore be somewhat inaccurate. Figure 7-4 illustrates the effect an inaccurate coefficient may have on the calibration.
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To avoid calibration errors, the product temperature is stored in the Uni-Probe LB 491. When cal- culating the calibration curve, the entered laboratory value is cor- rected using the temperature coefficient.
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7 Explanations Volume 5 This correction is carried out only if – Temperature Compensation has been enabled in the device configuration (see chapter 4.2.14 on page 5–373) – at least one temperature coefficient has been entered. The corrected lab values based on which the calibration curve is calculated are displayed after the coefficients and the square error, if temperature compensation has been enabled for calibration.
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(square, cubic). In the calibration mode Automatic the decision for the most appropriate curve shape for the data is made by the Uni-Probe LB 491. Also, view the following data and check the calibration if you detect any deviation:...
7 Explanations Volume 5 Measurement of Suspensions Clear correlation of density and concentration is possible only if • liquid density • solid density are constant. Density or concentration measurements of suspensions can be car- ried out in these units: 1. Density in g/cm 2.
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For solutions or liquid mixtures, large devia- tions may occur when the measurement involves larger ranges. The flowchart in Fig. 7-7 shows how the density measuring system converts units of measure. Uni-Probe LB 491 5 – 445 Berthold Technologies GmbH & Co. KG...
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O (ρ ) at 20°C 0.99823g/cm ⋅ 0.2 0.99823 ρ ----------------------------------------- - 1.8294 0.99823 ------------------ - 1 – 1.0980 Input for liquid density 0.99823 Input for solid density 1.8294 Uni-Probe LB 491 5 – 447 Berthold Technologies GmbH & Co. KG...
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7 Explanations Volume 5 Table values of the example are available as concentration in g/l In this case it holds: S ρ ⋅ ρ ------------------------ - ρ ρ – = Density of mixture in g/cm at average concentration ρ = Density of component to be measured (solid density)) ρ...
The device first switches to the safe state and then has to be reset by turning off/on the power supply so that the measurement can be started again. Error 14 will always be followed by error 13! The Hardware Reset error 14 is also listed in the error log. Uni-Probe LB 491 5 – 449 Berthold Technologies GmbH & Co. KG...
8 Error Handling Volume 5 Error Handling Modes The operating mode Continue measurement or Stop measurement can be set via the SIMATIC PDM software ( SYSTEM PARAMETER menu, see page 5–366). Both operation modes behave as follows: • Continue measurement: If the error disappears, the measurement automatically goes to the RUN mode.
If the error occurs repeatedly, you Only entered in the error log! have to replace the electronics module. Error battery failed Hardware timer faulty Replacing the digital board Uni-Probe LB 491 5 – 451 Berthold Technologies GmbH & Co. KG...
8 Error Handling Volume 5 Error Error message Probable cause Potential solution number Error RTC Hardware timer does not have the Check date and update it, if neces- current date! sary. Supply device with power for If the device has been without 24 hours to charge the capacitor power supply for a longer period of again.
Problematic operating states of the device will result in a changed device icon. This status will be reset only after elimination of the error. Then these errors will be reset automatically. Uni-Probe LB 491 5 – 453 Berthold Technologies GmbH & Co. KG...
8 Error Handling Volume 5 Fault Current There are five different ways how the current output should respond to errors: • High: Hold at 22 mA. • Low: Hold at 3.5 mA. • Hold: Hold last measured value. • Value: Hold at a selected value between 3.5 and 22 mA. The respective value has to be defined on the CURRENT OUTPUT menu (see page 5–377).
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The min. relay is set to normal. Value: 22mA 20mA Fig. 8-3 Example for value 22 mA For information on defining the fault current please refer to section 4.2.20 on page 5–377. Uni-Probe LB 491 5 – 455 Berthold Technologies GmbH & Co. KG...
(which can be closed, see page 6-69) is displayed. Select the user status, enter your password, if necessary (in the Specialist text box) and click OK. The SIMATIC PDM main window opens (see also page 5–458). Uni-Probe LB 491 5 – 457 Berthold Technologies GmbH & Co. KG...
9 Working with SIMATIC PDM Volume 5 The SIMATIC PDM Main Window After you have opened the Uni-Probe in SIMATIC Manager Step 7 (see page 5–457), the parameters with their values from the project which is stored on a hard drive are displayed in the param- eter table in the SIMATIC PDM main window.
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In this way you can compare the process values of two objects with each other. In the title bar of the menu you can see to which object the respective menu belongs. Uni-Probe LB 491 5 – 459 Berthold Technologies GmbH & Co. KG...
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9 Working with SIMATIC PDM Volume 5 The displays in the status bar and the title bar of the SIMATIC PDM depend on which object you have selected. 38478BA2B 5 – 460 27.5.08...
Communication and the device status were good, and no good good dark green messages are available. gray/light Communication was good. The device does not support good untested green diagnosis test. Uni-Probe LB 491 5 – 461 Berthold Technologies GmbH & Co. KG...
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9 Working with SIMATIC PDM Volume 5 38478BA2B 5 – 462 27.5.08...
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Volume 6 SIMATIC PDM User Interface Profibus PA...
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Profibus PA. Please use Volume 6 always in connection with the standard ver- sion of the User’s Manual Uni-Probe LB 491 (ID-No. 38478BA2). Basic knowledge on the Profibus physics and SIMATIC PDM is an essential prerequisite for working with this User’s Manual.
3.1.5 on page 6–475) or HART • Device master file (GSD): A17F.gsd For connection of the process data via OPC, please contact Berthold Technologies GmbH & Co. KG for information on the slot index addresses for the respective parameters.
1 Process Operation Volume 6 System Overview The following illustration shows how to integrate the Uni-Probe into a fieldbus system. Standard installation The fieldbus signal is either intrinsically safe or not intrinsically safe. Power is always supplied not intrinsically safe. In addition to the fieldbus signal output, an additional 4–20mA sig- nal is available, for example to operate an on-site indication.
2 Installation / Program Start Installation / Program Start Installing the Device Description (DD) In order to use the density measuring system Uni-Probe LB 491 with Profibus PA, you have to import the Device Description into your program. IMPORTANT PDM version V6.0 + SP2 is required for installation of the LB 491...
2 Installation / Program Start Volume 6 Starting SIMATIC PDM Start SIMATIC PDM by double-clicking on the device symbol (in our example LB491 Upon start of SIMATIC PDM, a welcome screen and the USER dialog box appear. Select the desired user status, enter your password (if you se- lect Specialist) and then confirm with OK.
The following buttons have the same function in all dialog windows: Closes the current window. CLOSE: Opens the list of error messages. MESSAGES: Invokes the SIMATIC PDM online help. HELP: Uni-Probe LB 491 6 – 471 Berthold Technologies GmbH & Co. KG...
3 Device-specific Menus Volume 6 DEVICE Menu menu includes the following items: DEVICE • Communication path (page 6–473) • Download to Device… (page 6–474) • Upload to PC/PG… (page 6–474) • Update Diagnostic Status (page 6–474) • Set Address… (page 6–475) •...
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DOWNLOAD TO DEVICE… 3.1.2 Transfers the parameters on the parameter list into the device(s). Select the settings for the parameter download by ticking the checkboxes in the Settings group box. Uni-Probe LB 491 6 – 473 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 UPLOAD TO PC/PG… 3.1.3 Reads the parameters of the device and stores them in the param- eter list of the SIMATIC Manager on the PC. Select the settings for the parameter download by ticking the checkboxes in the Settings group box.
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FUNCTION BLOCK 1 . Click on - ANALOG INPUT FUNCTION BLOCK 7 - ANALOG OUTPUT the respective tabs to open one of the following five dialogs… • Overview (page 6–476) Uni-Probe LB 491 6 – 475 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 • General (page 6–477) • Diagnosis (page 6–477) • Physical Block (page 6–478) • Transducer Block (page 6–478). OVERVIEW Tab Indicates the mode of the individual function blocks. AUTO: In the automatic mode, the bus is provided with the process data (density, detector temp.) as measurement variable.
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Contains general information on the respective function block. DIAGNOSIS Tab The DIAGNOSIS tab helps you to identify errors. The possible error causes are indicated by checkmarks in the checkboxes. See also chapter 7. Uni-Probe LB 491 6 – 477 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 PHYSICAL BLOCK Tab Contains information on the physical block. TRANSDUCER BLOCK Tab Contains information on the transducer block. 38478BA2B 6 – 478 27.5.08...
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Ok, … : Simulation value for the status Set the target mode to MAN. Enter the desired values. Click the Transfer button to upload the entries to the Uni-Probe. Uni-Probe LB 491 6 – 479 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 FUNCTION BLOCK 7 - ANALOG OUTPUT - VOLUME FLOW Tab Parameters Description Target Mode Remote Cascade (RCAS)/AUTO/MAN/Local Override (LO)/Out of Service (O/S). Setpoint 0, … : Simulation value for the output value Quality Good/Bad/Uncertain: Simulation value for the quality Status Ok, …...
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Set the Target Mode to MAN, AUTO or OUT OF SERVICE Click the Transfer button to upload the entries to the Uni-Probe. IMPORTANT To change the function block parameter, you have to set the mode to MAN (manual) Uni-Probe LB 491 6 – 481 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 SIMULATION FUNCTION BLOCK 6 and 7 - 3.1.9 ANALOG OUTPUT These menus are used for control of the function blocks. Values or statuses can be simulated here for test purposes. SIMULATION (MEASURED VALUE) Tab Parameters Description Simulation Enabled/Disabled: Select Enabled to enable the simulation.
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Therefore, parameters may be read only in the unlocked state. Set the write protection to ON or OFF. Click the Transfer button to upload the entries to the Uni-Probe. Uni-Probe LB 491 6 – 483 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 VIEW PARAMETERS STATUS ERRORLOG 3.1.12 Shows the number of error messages and the contents of the error log. text box shows the current operation mode of the OP MODE device. The number of entries in the error log is displayed in the NUMBER text box.
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Hardware version of the fieldbus module. FBK hardware type Hardware type of the fieldbus module. Enter the desired values. Click the Transfer button to upload the entries to the Uni-Probe. Uni-Probe LB 491 6 – 485 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 CONFIGURATION SYSTEM PARAMETER 3.1.14 Shows the major system parameters and allows you to change the operation mode, the isotope or the error handling. See also chapter 7.2 on page 6–558 for information on error handling. SYSTEM PARAMETER Tab Parameters Description...
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Depending on the operation mode, more fields are available at this point, e.g. for volume flow. Temperature Unit Choose either degree Celsius or Fahrenheit. This unit is used for the probe temperature. Uni-Probe LB 491 6 – 487 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 Configuration MEASURE PARAMETER 3.1.15 In this dialog box you can select five submenus: • Damping Data (page 6–488) • Rad. Interference (page 6–491) • Pulse Rate Limits (page 6–491) • Temperature Compensation (page 6–493) • Suspension Measurement (page 6–493) DAMPING DATA Tab 38478BA2B...
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1 x τ = single measurement time - standard: 20 s 3 x τ = virtually corresponds to the end value The time constant corresponds in its function to an RC element. τ = R x C Uni-Probe LB 491 6 – 489 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 Parameters Description Rapid Switch No: without rapid switchover Yes: with rapid switchover Rapid Switch is needed only for special applications where the output signal has to adapt quickly to the new value, e.g. in case of measurements on small pipe diame- ters and if sudden density changes occur.
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No Detection: Turns the radiation interference detection off. On: Turns the radiation interference detection on. Enter the desired value. Click the Transfer button to upload the entries to the Uni-Probe. PULSE RATE LIMITS Tab Uni-Probe LB 491 6 – 491 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 Parameters Description Sensor value max Upper count rate limit This function is enabled only for special applications. Enter a value unequal to zero to enable the upper threshold. If the current count rate exceeds the upper threshold, the measurement is halted until the count rate has dropped below the upper threshold again.
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Click the Transfer button to upload the entries to the Uni-Probe. SUSPENSION MEASUREMENT Tab Select On to switch to suspension measurement. Click the Transfer button to send the entry to the Uni-Probe. Uni-Probe LB 491 6 – 493 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 CALIBRATION SET BACKGROUND 3.1.16 Here you can measure or enter the background. For more information on the background please refer to chapter 4. Choose if you want to enter or read-in the count rate and con- firm the selection with OK (see chapter 6.3 on page 6–554).
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OK if you want to use the CAL. PT TEMP CAL. PT. TEMP temperature compensation. Then enter the current product temperature. Select and then click OK to terminate the input. DONE DONE Uni-Probe LB 491 6 – 495 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 CALIBRATION CALIBRATE 3.1.18 Checks the calibration values for validity and sorts the value pairs. In chapter 4 you find more information on how to perform a cali- bration. New coefficients are calculated in the course of the test. For a multi-point calibration, the deviation of the curve from the mea- sured values is determined according to the method of the smallest error squares, see chapter 3.1.19.
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SAVE/LOAD CURVE Tab The data can be loaded again later and the old calibration data will be restored. IMPORTANT The current calibration will be overwritten by the saved calibration data. Uni-Probe LB 491 6 – 497 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 CALIBRATION 3.1.20 SHOW CALIBRATION POINTS Shows the calibration data and values. 38478BA2B 6 – 498 27.5.08...
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/h for lower current value (0 or 4mA). Upper Range Value 20mA Flow rate in m /h for upper current value (20or mA). Click the Transfer button to upload the entries to the Uni-Probe. Uni-Probe LB 491 6 – 499 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 INPUT/OUTPUT DIGITAL INPUTS 3.1.22 Defines the function of the digital inputs. Parameters Description Input Select the digital input you would like to set up. You can set up two inputs (DigIn1 Hold / DigIn2 Empty). Function Enable or disable the inputs.
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If the density then drops to 1.05g/cm , the relay is deener- gized again and returns to normal state. Select the desired parameter. Click the Transfer button to upload the entries to the Uni-Probe. Uni-Probe LB 491 6 – 501 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 SERVICE TEST CALCULATION 3.1.24 Select this item to perform a test calculation. IMPORTANT During test calculation the operating mode of the device changes to TEST. Parameters Description Enter the count rate. IMPORTANT The test mode is enabled if you enter a count rate >0. In the test mode the error relay indicates an alarm.
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Exit test mode: Disable test mode Click on Set the mode selection to confirm the selection. The Test mode status text box indicates if the test mode is cur- rently enabled or disabled. Uni-Probe LB 491 6 – 503 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 IMPORTANT After completion of the test, you have to disable the test mode again to ensure that the digital outputs will operate in the mea- surement mode again. SERVICE I/O TEST CURRENT I/O TEST 3.1.27 Adjusts the current input 1 or 2 new.
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Detector type Crystal (mm) Detector code Point detectors XXXXX-X1X 50x50 NaI XXXXX-X2X IMPORTANT If you restore the factory settings, the detector code will be retained. Uni-Probe LB 491 6 – 505 Berthold Technologies GmbH & Co. KG...
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Reset the value to 0 as soon as the test is finished. HV Default This value is set by Berthold Technologies and has to be set new only after replacement of the detector or the multiplier. After power failure, the Uni- Probe starts with this HV.
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Depending on the configuration of the plateau parameters, the number of plateau points changes and thus the number of entries in the table. Click on Read Actual Plateau Values to update the table. Uni-Probe LB 491 6 – 507 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 SERVICE PLATEAU 3.1.32 SHOW PLATEAU POINTS (GRAPH) Shows the value pairs of the plateau points that have been recorded in the course of the plateau measurement. The data points are displayed in the form of a graph. The plateau is the flat section of the curve and it is typically approx.
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Volume 6 3 Device-specific Menus MANUFACTURER 3.1.33 Information on the device manufacturer. Uni-Probe LB 491 6 – 509 Berthold Technologies GmbH & Co. KG...
3 Device-specific Menus Volume 6 VIEW Menu menu includes the following items: VIEW • Display (page 6–510) • Y t diagram (page 6–514) • Alarm States (page 6–515) – Function Block 1 to 5 - Analog Input (page 6–515) – Function Block 6 and 7 - Analog Output (page 6–517) •...
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Shows the output value of the function block (see also table on FUNCTION BLOCK 6/7 - "FUNCTION BLOCK 1 to 5 - ANALOG INPUT Tab"). ANALOG OUTPUT Tab Uni-Probe LB 491 6 – 511 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 Show you “live” the currently measured density, the probe temper- MEASURED VALUE Tab ature and the count rate in the configured unit. Parameters Description Density Measured density in g/cm Detector Temperature Measured probe temperature in °C. Average Count Rate Count rate averaged with the time constant.
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Shows the current temperature inside the detector. The sensor is located on the electronic board. The temperature can be indicated in Fahrenheit or in Celsius. The corresponding unit is selected during device configuration. Uni-Probe LB 491 6 – 513 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 Y T DIAGRAM 3.2.2 Shows a trend view of the measured values. This dialog box has two submenus: • Function Block Outputs (page 6–514) • Transducer Block Outputs (page 6–515) The trend curves of the transducer block are displayed over time. FUNCTION BLOCK OUTPUTS Tab The scaling range of the display and the properties of the display but can be adapted (see SIMATIC PDM documentation).
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FUNCTION BLOCK 6/7 - 3.2.4 ANALOG OUTPUT Shows the alarm summary for this function block. DEVICE STATUS 3.2.5 See page 6–475. TOOLBAR 3.2.6 Shows or hides the toolbar. Uni-Probe LB 491 6 – 517 Berthold Technologies GmbH & Co. KG...
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3 Device-specific Menus Volume 6 STATUS BAR 3.2.7 Shows or hides the status bar. UPDATE 3.2.8 Updates the contents of the window. 38478BA2B 6 – 518 27.5.08...
Volume 6 4 Calibration with SIMATIC PDM Calibration with SIMATIC PDM • The density measuring system Uni-Probe LB 491 has to be Prerequisites for calibration installed and connected correctly (see Uni-Probe User’s Manual Volume 1). • The SIMATIC PDM software and the Uni-Probe Device Descrip- tion must be installed and configured correctly (see chapter 2.1...
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4 Calibration with SIMATIC PDM Volume 6 4.1.1 Resetting the Uni-Probe to Factory Settings Select DEVICE MASTER RESET MASTER RESET Click on the Factory Reset button to reset the device to the factory settings. Click OK to confirm this process. IMPORTANT Modifications in the parameter table will be displayed only after you have executed the...
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Enter data into the white text boxes of the dialog box (see also page 6–485). Click the Transfer button to upload the entries to the Uni-Probe. Close the dialog. Uni-Probe LB 491 6 – 521 Berthold Technologies GmbH & Co. KG...
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4 Calibration with SIMATIC PDM Volume 6 Select DEVICE CONFIGURATION SYSTEM PARAMETER In the drop-down list box, select the isotope that is ISOTOPE used as radiation source in your measuring system. Click the Transfer button to upload the entries to the Uni-Probe. Close the dialog.
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Click the Transfer button to upload the entries to the Uni-Probe. Wait until the HV ( ) has been set. This takes HV READING approx. 2 minutes. Uni-Probe LB 491 6 – 523 Berthold Technologies GmbH & Co. KG...
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4 Calibration with SIMATIC PDM Volume 6 Read off the HV READING Enter this value into the text box. HV DEFAULT Click the Transfer button to sent the entries to the Uni-Probe and confirm the following dialog with OK. This completes the detector HV settings. 38478BA2B 6 –...
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For detailed information on count rates, please refer to chapter 6.3 on page 6–554. Confirm averaging time with OK. Uni-Probe LB 491 6 – 525 Berthold Technologies GmbH & Co. KG...
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4 Calibration with SIMATIC PDM Volume 6 Click OK to start reading in the count rate. The count rate reading-in process has started. If the process has been started with 0, it will take 30s until the count rate is read in. Confirm the dialog with OK.
Using the resulting curve you can then define the best curve fit. Alternatively, you can also carry out a multi-point calibration and let the Uni-Probe LB 491 decide which method is best: Select the automatic curve fit.
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4 Calibration with SIMATIC PDM Volume 6 4.2.1 Setting the Operating Mode for Calibration Select DEVICE CALIBRATION ENTER CALIBRATION POINT Enter the desired type of characterization: • One-point calibration: One-point. • Two- and multi-point calibration: Linear. • The linearization methods square, cubic (curve 3 order) and automatic (automatic selection of the best method) are needed only if the measurement is carried out in % concen-...
(see chapter 3.1.24 on page 6–502). Select the operating mode for two- or multi-point cali- bration (see page 6–528). Uni-Probe LB 491 6 – 529 Berthold Technologies GmbH & Co. KG...
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4 Calibration with SIMATIC PDM Volume 6 4.3.1 Set Calibration Points The following dialogs are displayed directly after entry of the oper- ating mode; therefore, you do not have to select a menu item. The absorption coefficient is calculated new after each multi- point-calibration and need not be entered.
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If temperature compensation is enabled, the temperature will be measured automatically. Select and confirm with OK. CAL. PT VALUE Enter the density value determined in the lab and confirm with Uni-Probe LB 491 6 – 531 Berthold Technologies GmbH & Co. KG...
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DONE SAVE & NEXT terminate the calibration. The calibration points are written to the Uni-Probe LB 491 and the process status is displayed in a dialog box. Click OK to close the dialog. This completes the setting of the calibration points.
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A test calculation should be performed after every calibration to ensure that your calibration data is plausible and the device has been set up correctly (see chapter 3.1.24 on page 6–502). Uni-Probe LB 491 6 – 533 Berthold Technologies GmbH & Co. KG...
4 Calibration with SIMATIC PDM Volume 6 One-Point Calibration One-point calibration is used only if calibration of two density val- ues is not possible. Prerequisite is that the isotope (Co-60 or Cs- 137) has already been set up correctly (see page 6–521). One-point calibration is carried out in five steps: •...
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Take a sample of your product and determine the density in the laboratory. Confirm the end of the measurement with OK. Select and confirm with OK. If temperature compensation is enabled, the temperature will be measured automatically. Uni-Probe LB 491 6 – 535 Berthold Technologies GmbH & Co. KG...
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Select to transfer the values to the Uni-Probe LB 491. DONE The calibration points are written to the Uni-Probe LB 491 and the process status is displayed in a dialog box. Click OK to close the dialog. This completes the setting of the calibration points.
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A test calculation should be performed after every calibration to ensure that your calibration data is plausible and the device has been set up correctly (see chapter 3.1.24 on page 6–502). Uni-Probe LB 491 6 – 537 Berthold Technologies GmbH & Co. KG...
4 Calibration with SIMATIC PDM Volume 6 Suspension Calibration The calibration for suspension measurements is carried out in four steps: • Select the operating mode suspension measurement • Enter the density of the carrier liquid or, with liquid mixtures, the density of the attendant component •...
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A test calculation should be performed after every calibration to ensure that your calibration data is plausible and the device has been set up correctly (see chapter 3.1.24 on page 6–502). Uni-Probe LB 491 6 – 539 Berthold Technologies GmbH & Co. KG...
Enter the high voltage where the plateau measurement should start and confirm the entry with OK. Enter the high voltage where the plateau measurement should end and confirm the entry with OK. Uni-Probe LB 491 6 – 541 Berthold Technologies GmbH & Co. KG...
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5 Functional Processes Volume 6 Enter the step width of the plateau points and confirm the entry with OK. IMPORTANT The step width determines the number of value pairs. The larger the step width, the lower the number of value pairs! Enter the time how long a plateau point should be measured or the count rate is to be averaged and confirm the entry with OK.
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Volume 6 5 Functional Processes Click OK to confirm the end of the measurement. This completes the plateau measurement. Uni-Probe LB 491 6 – 543 Berthold Technologies GmbH & Co. KG...
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5 Functional Processes Volume 6 5.1.2 Show Plateau Points (Table) Select DEVICE SERVICE PLATEAU SHOW PLATEAU POINTS to view the table. (TABLE) Click on the tabs 1…10, 11…20 etc. to scroll through the table. Depending on the configuration of the plateau parameters, the number of plateau points changes and thus the number of entries in the table.
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To get a reasonable presentation, the step width between the data points should not be too big (approx. ≤ 50V). Click on Read Actual Plateau Values to update the graph. Uni-Probe LB 491 6 – 545 Berthold Technologies GmbH & Co. KG...
5 Functional Processes Volume 6 Define Unit of Measure and Unit for the Function Blocks Several steps, as described below, are needed to change the output signal of the function blocks. For our example, we assume that you do not want to display the concentration in function block 3, but the density.
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Volume 6 5 Functional Processes Upload the changed settings to the PC: DEVICE UPLOAD TO PC/PG Click OK to start the transfer. Wait until the action is finished. Uni-Probe LB 491 6 – 547 Berthold Technologies GmbH & Co. KG...
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5 Functional Processes Volume 6 Click Close to close the dialog. Select the function block again: the fields on the right side are now accessible and you can select the desired signal and the unit. At the end, disable the simulation mode again: Select the menu items DEVICE SIMULATION...
(approx. 15m), or behind a thick concrete wall. Detector Detector Fig. 6-1 Best solution 1) Operating conditions = installed, opened source and filled pipeline at average product density. Uni-Probe LB 491 6 – 549 Berthold Technologies GmbH & Co. KG...
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6 Explanations Volume 6 With full pipeline or full vessel, detector installed and shielding Second best solution installed, radiation source installed and radiation exit channel closed. Source with closed radiation Detector exit channel Fig. 6-2 Second best solution 38478BA2B 6 – 550 27.5.08...
Is > Im + n * Sigma Im = current count rate integrated over one second n = multiple value of Sigma Uni-Probe LB 491 6 – 551 Berthold Technologies GmbH & Co. KG...
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6 Explanations Volume 6 A relative limit value is monitored, i.e. the alarm threshold is to Scenario A: reached when exceeding a maximum dose rate (calibration value at empty vessel) at the detector. False alarms due to operative factors are not possible. However, only stronger interfering radiation is detected.
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At the end of the waiting time the system checks if the arriving count rate is smaller than 1.5-times the calibrated empty count with Sigma check rate (Io). Uni-Probe LB 491 6 – 553 Berthold Technologies GmbH & Co. KG...
Volume 6 Reading-in Pulse Rates For each calibration you have to read-in or enter count rates. In the Uni-Probe LB 491 User’s Manual, Volume 6 there are several refer- ences to this procedure. Read or enter count rate? The count rate can be read-in or entered. Typically, the count rate is read in.
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The count rates displayed in our example may be significantly higher or lower, depending on the application. Confirm the dialog with OK. Select and confirm the count rate with OK. Uni-Probe LB 491 6 – 555 Berthold Technologies GmbH & Co. KG...
A hardware reset is always followed by a Watchdog Fail, error 13! The hardware reset error 14 will also be listed in the error log. Uni-Probe LB 491 6 – 557 Berthold Technologies GmbH & Co. KG...
7 Error Handling Volume 6 Error Handling Modes The operating mode Continue measurement or Stop measurement can be set via the SIMATIC PDM software (menu SYSTEM PARAME- , see page 6–486). Both operation modes behave as follows: • Continue measurement: If the error disappears, the measurement automatically goes to the measurement mode.
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0. Warning radiation interference Interference radiation detected, Wait for set waiting time. possibly due to welding check. The system automatically switches to the Run mode. Uni-Probe LB 491 6 – 559 Berthold Technologies GmbH & Co. KG...
7 Error Handling Volume 6 Reset The Uni-Probe can be reset as follows: 1. Software reset on the menu. RESET PYHYSICAL BLOCK DEVICE The Uni-Probe will be reset and all parameters will be overwrit- ten by standard values. 2. Hardware reset By pushing the Reset button on the digital board.
Volume 7 Volume 7 of the Uni-Probe LB 491 User’s Manual is a supplement to About this User's Manual: the standard documentation of the density measuring system Uni- Probe LB 491. It includes instructions on how to work with the ™...
- Factory setting: AI1 = Level, AI2 = Probe temperature • Device description files (DD): *.sym and *.ffo The file name shows the revision status • Device capability file: *.cff The file name shows the revision status Uni-Probe LB 491 7 – 565 Berthold Technologies GmbH & Co. KG...
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1 Process Operation Volume 7 1.1.1 System Overview The following illustration shows how to integrate the Uni-Probe into a fieldbus system. Standard Installation The fieldbus signal is either intrinsically safe or not intrinsically safe. Power is always supplied not intrinsically safe. In addition to the fieldbus signal output, a 4–20mA signal is also available, for example, to operate an on-site indication.
Volume 7 2 Installation / Program Start Installation / Program Start Installing the Device Description To be able to use the Uni-Probe LB 491 density measuring system ™ with FOUNDATION Fieldbus, you have to import the device description into your program. Then the density measuring system LB 491 will be available below the manufacturer's name Berthold Technologies.
Parameters for the Function Block Resource Parameter name Description DD_REV Revision number of the device description for Uni-Probe LB 491 DEV_REV Revision number of LB 491 DEV_Type Device type number ERROR_LOG_DATA Error information. See also chapter 7.1 on page 7–607.
3 Parameter Overview Volume 7 Parameters for the Function Block Transducer Parameter name Description FL_ANALOG_INPUT_SETUP FL_TEMPERATURE_INPUT_RANGE_SELECT Operating range of the input for the temperature: 0–20 or 4–20mA FL_VOLUME_FLOW_INPUT_RANGE_SELECT Operating range of the input for the flow: 0–20 or 4–20mA FL_ANALOG_INPUT_VALUES FL_TEMPERATURE_INPUT_CURRENT Current value for the temperature of the medium FL_VOLUME_FLOW_INPUT_CURRENT...
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Status DO 2 FL_DO3_STATE Status DO 3 FL_DO4_STATE Status DO 4 FL_DO_TEST_MODE_STATUS Shows if the test mode for the DO is enabled or not. It is enabled via FL_DIGITAL_OUTPUT_TEST_MODE. Uni-Probe LB 491 7 – 571 Berthold Technologies GmbH & Co. KG...
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3 Parameter Overview Volume 7 Parameter name Description FL_ERROR_HANDLING Defines the behavior if an error occurs. See also chap- ter 7.1 on page 7–607. FL_HOLD_MEASUREMENT The current process value is held. This function is rele- vant only for servicing. FL_INTERFERENCE_DETECTION Record.
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Unit for the process value FL_PROD_TEMPERATURE FL_PROD_TEMPERATURE Temperature value of the medium VALUE Process value in the unit defined with FL_PROD_TEMPERATURE_UNIT Status Status information regarding the process value Uni-Probe LB 491 7 – 573 Berthold Technologies GmbH & Co. KG...
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FL_SUSPENSION_MEASUREMENT_SOLID_ Solid density DENSITY FL_SYSTEM_TIME Date and time of the Uni-Probe LB 491. The values are calculated internally; no synchronization takes place with external references. See also chapter 4.1.1 on page 7–580. FL_TAB_ACTUAL_NUMBER Shows the number of valid calibration points, i.e.
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Enter the pulse rate here for which the process value is to be calculated and output. See section 5.2 on FL_TEST_GENERATOR_TEMPERATURE page 7–593. FL_TEST_GENERATOR_VOLUME_FLOW FL_TRIM_ANALOG_INPUT The function is relevant only for servicing Uni-Probe LB 491 7 – 575 Berthold Technologies GmbH & Co. KG...
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3 Parameter Overview Volume 7 Parameter name Description FL_TRIM_PT100 The function is relevant only for servicing FL_VOLUME_FLOW Flow value FL_VOLUME_FLOW_HI_LIMIT Upper limit for the flow FL_VOLUME_FLOW_LO_LIMIT Lower limit for the flow FL_VOLUME_FLOW_UNITS Unit for the process value FL_VOLUME_FLOW FL_ZERO_POINT Measured value for the zero count rate. The value is calculated after selection of FL_TAB_OP_CODE = Cali- brate FL_ZERO_POINT_UNIT...
The parameter is taken into account only when: - for temperature Using Fieldbus AO has been selected in FL_TEMPERATURE_COMPENSATION_MODE - for flow speed Mass_Flow Field Bus AO has been selected in FL_MEASUREMENT_MODE. Uni-Probe LB 491 7 – 577 Berthold Technologies GmbH & Co. KG...
4 Calibration with FOUNDATION Fieldbus Calibration with ™ FOUNDATION Fieldbus • The Density Meter Uni-Probe LB 491 has to be installed and Prerequisites for calibration connected correctly (see Uni-Probe LB491 User's Manual Volume 1). ™ • The FOUNDATION Fieldbus software and the Uni-Probe Device Description must be installed and configured correctly.
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™ 4 Calibration with FOUNDATION Fieldbus Volume 7 4.1.1 Basic Configuration This chapter describes how to set up a minimum basic configura- tion to prepare the Uni-Probe for calibration. The date and time is updated and the isotope is set. Parameters used FL_SYSTEM_TIME FL_ISOTOPE...
Read off the current count rate at FL_READ_IN_SENSOR_ in the record VALUE FL_READ_IN_DATA , enter the read off pulse rate. FL_SENSOR_OFFSET Send the entries to the Uni-Probe. This completes the background measurement. Uni-Probe LB 491 7 – 581 Berthold Technologies GmbH & Co. KG...
Additional density values are needed for multi-point calibration; the basic procedure is identical with two-point calibration. However, the Uni-Probe LB 491 does not use the linear connection between two data points as final characteristic curve, but a regression analysis will always be performed. Further options are available for the curve fit.
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Send the entries to the Uni-Probe. This completes the entry of the operating mode. Uni-Probe LB 491 7 – 583 Berthold Technologies GmbH & Co. KG...
™ 4 Calibration with FOUNDATION Fieldbus Volume 7 Two- and Multi-Point Calibration Multi-point calibration can be based on a one-point calibration or it can be started new. Several samples have to be taken for calibra- tion and the product density values or concentrations have to be determined in the laboratory.
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, enter the density value deter- FL_TAB_VALUES mined in the laboratory in the first sub-parameter in the unit you have entered under FL_CAL_POINT_VALUE or, in case of a suspension measurement, FL_DENSITY_UNITS under FL_CONCENTRATION_UNITS Uni-Probe LB 491 7 – 585 Berthold Technologies GmbH & Co. KG...
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™ 4 Calibration with FOUNDATION Fieldbus Volume 7 Second and further calibration points The sequence of operation is the same as above and will be described here in abbreviated form. : Enter 2. FL_TAB_ENTRY In the record , enter the read-off count rate in FL_TAB_VALUES the second sub-parameter FL_CAL_POINT_RATE...
After each of the following steps, send the entry/entries to the Uni-Probe with the Write changes button. Go to the function block Transducer Enter the absorption coefficient at FL_LINEARIZATION_COEFFICIENT_A1 Uni-Probe LB 491 7 – 587 Berthold Technologies GmbH & Co. KG...
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™ 4 Calibration with FOUNDATION Fieldbus Volume 7 NOTICE The absorption coefficient for one-point calibration has to be deter- mined very accurately, since the accuracy (measurement uncer- tainty) of the calibration is essentially determined by this value. See also the absorption coefficients table in Volume 3, section 7.1 on page 3–297.
Transducer Enter the unit for the concentration at FL_CONCENTRATION_UNITS Enter the unit for the density at FL_DENSITY_UNITS Enter the unit for the temperature of the product at FL_PROD_TEMPERATURE_UNIT Uni-Probe LB 491 7 – 589 Berthold Technologies GmbH & Co. KG...
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™ 4 Calibration with FOUNDATION Fieldbus Volume 7 This completes the calibration of the suspension measure- ment. You always have to perform a test calculation after a calibration. In this manner you will ensure that your calibration data is plausible and the device has been set up correctly (see section 5.2 on page 7–593).
The pulse rate is averaged over this time. Send the entries to the Uni-Probe. • The number of steps used is calculated by the Uni-Probe and dis- played in FL_PLATEAU_DATA_NUMBER Uni-Probe LB 491 7 – 591 Berthold Technologies GmbH & Co. KG...
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5 Functional Processes Volume 7 Select Start plateau measurement at and send the entries to the Uni- FL_START_STOP_PLATEAU Probe to start the measurement. • shows the progress of the plateau mea- FL_PLATEAU_STATUS surement. shows the currently FL_PLATEAU_HIGH_VOLTAGE used HV voltage, shows the currently FL_PLATEAU_PULS_RATE measured count rate.
FL_SENSOR_VALUE NOTICE Set the pulse rate for back to 0, as soon FL_SENSOR_TEST_VALUE as the test is finished in order to continue with the regular mea- surement mode. Uni-Probe LB 491 7 – 593 Berthold Technologies GmbH & Co. KG...
5 Functional Processes Volume 7 Damping The illustration below shows the reaction of the output signal of the Uni-Probe in case of an erratic input change and a time constant of τ: The output signal reaches the final output value (100%) only after a certain time, i.e.
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Send the entries to the Uni-Probe. This completes the setting. Uni-Probe LB 491 7 – 595 Berthold Technologies GmbH & Co. KG...
5 Functional Processes Volume 7 Radiation Interference Detection Parameters used FL_INTERFERENCE_DETECTION FL_DETECTION_MODE FL_DETECTION_THRESHOLD FL_DETECTION_HOLD_TIME Go to the function block Resource In the record enable or disable FL_INTERFERENCE_DETECTION the radiation interference detection via the parameter FL_DETECTION_MODE Send the entry to the Uni-Probe. In the parameter , enter the FL_DETECTION_THRESHOLD...
- Unused: The relay does not trigger an alarm. Enter the values for FL_THRESHOLD FL_HYSTERESIS Send the entries to the Uni-Probe. This completes the setting. Uni-Probe LB 491 7 – 597 Berthold Technologies GmbH & Co. KG...
5 Functional Processes Volume 7 Defining the Upper/Lower Pulse Rate Limit This function is enabled only for special applications. Enter a value unequal to zero to enable the upper threshold. If the current pulse rate exceeds the upper threshold, the measurement is halted until the pulse rate has dropped below this threshold again.
ERROR_LOG_ENTRY which you would like to view information. Send the entries to the Uni-Probe. The record includes the information you are ERROR_LOG_DATA looking for. Uni-Probe LB 491 7 – 599 Berthold Technologies GmbH & Co. KG...
15m), or behind a thick concrete wall. Detector Detector Fig. 6-1 Best solution 1) Operating conditions = installed, opened source and pipeline filled with an average density of the product. Uni-Probe LB 491 7 – 601 Berthold Technologies GmbH & Co. KG...
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6 Explanations Volume 7 With full pipeline or full tank, installed detector and installed shield- Second best solution ing, built in radiation source and closed radiation exit channel. Source with closed shutter Detector Fig. 6-2 Second best solution 38478BA2B 7 – 602 27.5.08...
A relative limit value is monitored, i.e. the alarm threshold is to Scenario A: reached when exceeding a maximum dose rate (calibration value at empty vessel) at the detector. Uni-Probe LB 491 7 – 603 Berthold Technologies GmbH & Co. KG...
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6 Explanations Volume 7 False alarms due to operative factors are not possible. However, only stronger interfering radiation is detected. A differential limit value is monitored, i.e. each fast rise of the dose to Scenario B: rate triggers an alarm. Even minor interference radiation is detected if it occurs erratically.
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At the end of the waiting time the system checks if the arriving pulse rate is smaller than 1.5-times the calibrated empty pulse rate with Sigma check (Io). Uni-Probe LB 491 7 – 605 Berthold Technologies GmbH & Co. KG...
6 Explanations Volume 7 Reading-in Pulse Rates For each calibration you have to read-in pulse rates. In this volume, there are several references to this procedure. Parameters used FL_START_STOP_READ_IN FL_READ_IN_DATA FL_READ_IN_TIMEOUT_ACTUAL FL_READ_IN_STATUS FL_READ_IN_SENSOR_VALUE FL_READ_IN_TIMEOUT Start reading in by selecting Read In at FL_START_STOP_READ_IN •...
A Hardware Reset is always followed by a Watchdog Fail, error 13! The Hardware Reset error 14 is also listed in the error log. Uni-Probe LB 491 7 – 607 Berthold Technologies GmbH & Co. KG...
7 Error Handling Volume 7 All error messages are stored in the error log together with date and time. Use the function block and the parameters Resource for query (see section ERROR_LOG_ENTRY ERROR_LOG_DATA 5.9 on page page 7–599). You find the parameter in the QUALITY record...
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Error Hardware Reset Error in the electronics If the error occurs repeatedly, you have to replace the electronics The message is only entered in the module. error log! Uni-Probe LB 491 7 – 609 Berthold Technologies GmbH & Co. KG...
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7 Error Handling Volume 7 Error Error message Probable cause Potential solution number Error RTCbackup / Battery Hardware timer faulty Replace digital board Error RTC error Hardware timer does not have the Check date and update it, if neces- current date! sary.
Shows that a test value (count rate) >0 has been entered in FL_SENSOR_TEST_VALUE. Read In Is displayed if a count rate has been read into the record FL_READ_IN_DATA for calibration. Uni-Probe LB 491 7 – 611 Berthold Technologies GmbH & Co. KG...
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Actual mode (output), parameter 6-511 Configuration, system parameters 5-366 Actual mode, parameter 6-512 Connecting the Uni-Probe 1-63 Adapter 1-127 Connections 1-60 Addressing the Uni-Probe LB 491 7-567 Controlled area 2-161 Adjust curve tab 6-497 Cooling 1-51 Adjust Pt100, Menu 6-504 Corrective action 5-451...
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Index Volume 1-7 Digital outputs 5-379 7-597 Function block Resource 7-569 Digital outputs, Menu 6-500 Function block Transducer 7-570 Dip tubes 1-29 Function blocks 7-565 Disable test mode 6-503 Function, parameter 6-500 6-501 Display, Menu 6-510 Functional processes 3-269 5-425 7-591 Disposal costs 2-175 Fuse exchange 1-97...
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Relay, parameter 6-501 Overview tab 6-476 Repair 1-83 Replacing the crystal-multiplier assembly 1-93 Replacing the digital board 1-94 PACTware™ 4-319 Replacing the electronics module 1-90 Parameter list 3-232 3-309 Uni-Probe LB 491 I – 617 Berthold Technologies GmbH & Co. KG...
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Index Volume 1-7 Replacing the power supply unit 1-96 Source replacement 2-171 Replacing the Uni-Probe 1-89 Source transport 2-175 Reset 3-227 3-304 6-483 6-560 7-611 Special form certificate 2-175 Returning repairs 1-107 Standard installation 6-468 7-566 RS-232 interface 1-60 1-98 Start menu 3-194 Starting SIMATIC PDM 6-470 Status 5-364...
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Volume flow rate input range select, parameter 6-499 Water cooling jacket 1-51 Water TC, parameter 6-493 Write locking 6-483 Write locking, Menu 6-483 Y t diagram 5-396 Y t diagram, Menu 6-514 Uni-Probe LB 491 I – 619 Berthold Technologies GmbH & Co. KG...
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Index Volume 1-7 38478BA2B I – 620 27.5.08...
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