Siemens SITRANS LG250 Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Siemens Manuals
  4. Radar
  5. SITRANS LG250
  6. Operating instructions manual

Siemens SITRANS LG250 Operating Instructions Manual

Guided wave radar
Hide thumbs Also See for SITRANS LG250:
Table of Contents

Advertisement

Quick Links

Download this manual
Guided Wave Radar
SITRANS LG250
Profibus PA
Rod and cable probe
Operating Instructions • 01/2020

Advertisement

Table of Contents
loading

Related Manuals for Siemens SITRANS LG250

Summary of Contents for Siemens SITRANS LG250

  • Page 1 Guided Wave Radar SITRANS LG250 Profibus PA Rod and cable probe Operating Instructions • 01/2020...
  • Page 2 SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 3: Table Of Contents

    Saving the parameterisation data ................... 52 Set up with other systems ....................53 DD adjustment programs ....................53 Diagnostics and servicing ....................54 Maintenance ........................54 Diagnosis memory ......................54 Status messages ......................55 Rectify faults ........................58 PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 4 11.3 Dimensions ........................84 11.4 Trademark ........................89 Safety instructions for Ex areas Take note of the Ex specific safety instructions for Ex applications. These instructions are attached as documents to each instrument with Ex approval and are part of the operating instructions. Editing status: 2020-01-24 SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 5: About This Document

    The dot set in front indicates a list with no implied sequence. Sequence of actions Numbers set in front indicate successive steps in a procedure. Battery disposal This symbol indicates special information about the disposal of bat- teries and accumulators. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 6: For Your Safety

    During work on and with the device, the required personal protective equipment must always be worn. Appropriate use SITRANS LG250 is a sensor for continuous level measurement. You can find detailed information about the area of application in chapter "Product description". Operational reliability is ensured only if the instrument is properly used according to the specifications in the operating instructions manual as well as possible supplementary instructions.

  • Page 7: Eu Conformity

    English language. Installations in the US shall comply with the relevant requirements of the National Electrical Code (ANSI/NFPA 70). Installations in Canada shall comply with the relevant requirements of the Canadian Electrical Code. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 8: Product Description

    • Optional accessory The further scope of delivery encompasses: • Documentation – Operating instructions SITRANS LG250 – Instructions for optional instrument features – Ex-specific "Safety instructions" (with Ex versions) – If necessary, further certificates Information: Optional instrument features are also described in this operating instructions manual.

  • Page 9: Principle Of Operation

    13 ID numbers, instrument documentation 14 Hardware and software version Principle of operation Application area The SITRANS LG250 is a level sensor with cable or rod probe for continuous level or interface measurement, suitable for applications in liquids. Functional principle -...
  • Page 10 Distance to the interface d2 Distance to the level TS Thickness of the upper medium (d1 - d2) h1 Height - Interface h2 Height - Level L1 Lower medium L2 Upper medium L3 Gas phase SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 11: Packaging, Transport And Storage

    Ascertained transit damage or con- cealed defects must be appropriately dealt with. Storage Up to the time of installation, the packages must be left closed and stored according to the orientation and storage markings on the outside. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 12: Accessories

    Rod segments: 20 … 5900 mm (0.79 … 232 in) • Curved segments: 100 x 100 mm (3.94 … 3.94 in) If you mount the SITRANS LG250 in a bypass tube or standpipe, you Centering have to avoid contact to the bypass tube by using a spacer at the probe end.

  • Page 13: Mounting

    Prior to setup you have to replace these protective caps with ap- proved cable glands or close the openings with suitable blind plugs. Note: Process conditions For safety reasons, the instrument must only be operated within the permissible process conditions. You can find detailed information on PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 14: Mounting Instructions

    Mounting instructions Installation position Mount SITRANS LG250 in such a way that the distance to vessel installations or to the vessel wall is at least 300 mm (12 in). In non- metallic vessels, the distance to the vessel wall should be at least 500 mm (19.7 in).
  • Page 15 In such cases, always carry out a false signal suppression after mounting. You can find further information under "Setup procedure". DN25 ... DN150 ≤ 150 mm (5.91") > DN150 ... DN200 ≤ 100 mm (3.94") Fig. 6: Mounting socket When welding the socket, make sure that the socket is flush with the vessel top. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 16 "Technical data". Keep in mind for the adjustment that the default setting for the measuring range refers to water. SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 17 If durability is no problem, we recommend the use of uncoated metal standpipes. When the SITRANS LG250 is used in bypass tubes, contact with the tube wall must be avoided. We recommend for this purpose a cable probe with centering weight.
  • Page 18 It does not matter if the standpipe is perforated or slotted for better mixing. Measuring probes can be mounted in standpipes up to DN 200. SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 19 If durability is no problem, we recommend the use of uncoated metal standpipes. When the SITRANS LG250 is used in standpipes, contact with the tube wall must be avoided. We recommend for this purpose a cable probe with centering weight.
  • Page 20 If there is a risk of the cable probe touching the vessel wall during operation due to product movements or agitators, etc., the measuring probe can be strained. For this purpose there is an internal thread (M12 or M8) in the gravity weight. SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 21 Rod extension In case of difficult installation conditions, for example in a socket, the probe can be suitably adapted with a rod extension. To compensate for the resulting changes in signal runtime, let the instrument determine the probe length automatically. You can find further information in the supplementary instructions of the rod and cable components. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 22: Connecting To Power Supply

    Note: Prior to setup you have to replace these protective caps with ap- proved cable glands or close the openings with suitable blind plugs. SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 23: Connecting

    5. Insert the cable into the sensor through the cable entry Fig. 13: Connection steps 5 and 6 Single chamber housing Double chamber housing 6. Insert the wire ends into the terminals according to the wiring plan PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 24: Wiring Plan, Single Chamber Housing

    Selection switch for instrument address For external display and adjustment unit Ground terminal for connection of the cable screening Wiring plan, double chamber housing The following illustration applies to the non-Ex, Ex-ia and Ex-d ver- sion. SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 25: Set Instrument Address

    The address setting is carried out either via: • The address selection switch in the electronics compartment of the instrument (address setting via hardware) • The display and adjustment module (address setting via software) • PACTware/DTM (address setting via software) PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 26: Switch-On Phase

    PC • Status byte goes to fault value Then the actual measured value is output to the signal cable. The value takes into account settings that have already been carried out, e.g. default setting. SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 27: Set Up With The Display And Adjustment Module

    Fig. 18: Insertion of the display and adjustment module with single chamber housing Note: If you intend to retrofit the instrument with a display and adjustment module for continuous measured value indication, a higher lid with an inspection glass is required. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 28: Adjustment System

    [OK] will not be saved. Switch-on phase After switching on, the SITRANS LG250 carries out a short self-test where the device software is checked. The output signal transmits a fault signal during the switch-on phase. The following information is displayed on the display and adjustment module during the startup procedure: •...

  • Page 29: Parameter Adjustment - Quick Setup

    False signal suppression You can find the description of the individual menu items in the follow- ing chapter "Parameter adjustment - Extended adjustment". Parameter adjustment - Extended adjustment For technically demanding measuring points, you can carry out extended settings in "Extended adjustment". Main menu The main menu is divided into five sections with the following func- tions: PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 30 The display and adjustment module (address setting via software) • PACTware/DTM (address setting via software) Hardware addressing Hardware addressing is effective if an address less than 126 is set with the address selection switches on the electronics module of SITRANS LG250. In such case, software addressing has no effect - only the set hardware address applies. SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 31 In this menu item you can enter the probe length or have the length determined automatically by the sensor system. When choosing "Yes", then the probe length will be determined automatically. When choosing "No", you can enter the probe length manually. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 32 "Application". In this menu item you can enter if there is a superimposed gas phase in your application. Only set the function to "Yes", if the gas phase is permanently pre- sent. SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 33 Min. adjustment level In this menu item you can enter the min. adjustment for the level. With interface measurement this is the minimum total level. Adjust the requested percentage value with [+] and store with [OK]. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 34 Enter the respective distance value in m for the interface correspond- ing to the percentage value of the interface. False signal suppression The following circumstances cause interfering reflections and can influence the measurement: • High mounting sockets • Vessel internals such as struts SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 35 Corresponding linearisation curves are preprogrammed for these vessels. They represent the correlation between the level percentage and vessel volume. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 36 If the socket is lower than the up- per edge of the vessel, this value can also be negative. Fig. 20: Vessel height and socket correction value D Vessel height +h Positive socket correction value -h Negative socket correction value SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 37 AI FB1 - damping To damp process-dependent measured value fluctuations, you can set a time of 0 … 999 s in this menu item. The damping applies to the level and interface measurement. The default setting is a damping of 0 s. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 38 This menu item enables the setting of the requested national lan- guage. In delivery status, the sensor is set to English. Displayed value 1 In this menu item, you define the indication of the measured value on the display. You can display two different measured values. In this menu item, you define measured value 1. The default setting for the displayed value 1 is "Filling height Level". SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 39 The two values are displayed in the menu item "Peak values, distance". If you have selected interface measurement under the menu item "Setup - Application", the peak values of the interface measurement are displayed in addition to the peak values of the level measurement. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 40 This menu item displays the peak values of the electronics tempera- ture as well as the dielectric constant. In another window you can carry out a reset of the two peak values separately. SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 41 With this, you can detect signal changes over the operating time. With the adjustment software PACTware and the PC, the high-resolution echo curve can be displayed and used to compare the echo curve of the setup with the actual echo curve. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 42 Basic settings: Resetting of the parameter settings incl. special parameters to the default values (presettings) of the respective instru- SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 43 Primary Value (lin. percent level) AI FB1 scaling PV Scale (min.) AI FB1 scaling PV Scale (max.) 100 % AI FB1 Lin. Type Linear AI FB1 Out Scale Unit AI FB1 Out Scale Decimal Point #.## PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 44 Device memory - Measured value memory - Start with meas- Not active ured value Device memory - Measured value memory - Stop with meas- Not active ured value Device memory - Measured value memory - Stop recording Not active when memory is full SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 45 AI FB3 Out Scale (min.) AI FB3 Out Scale (max.) 100 % AI FB3 PV FTime AI FB3 Hi Hi Limit 3.402823E+38 % AI FB3 Hi Limit 3.402823E+38 % AI FB3 Lo Lo Limit -3.402823E+38 % PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 46 TAG-no. this sensor had. Tip: We recommend to save the instrument adjustments. In case of an electronics exchange the saved parameter adjustment data relieve this process. SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 47 PC. Profibus Ident Number In this menu item, the Profibus ident number of your sensor is dis- played. Sensor characteristics In this menu item, the features of the sensor such as approval, pro- cess fitting, seal, measuring range, electronics, housing and others are displayed. Example for displayed sensor features. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 48: Saving The Parameterisation Data

    In the display and adjust- If the instrument is equipped with a display and adjustment module, ment module the parameter adjustment data can be saved therein. The procedure is described in menu item "Copy device settings". SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 49: Setup With Pactware

    A description of the update procedure is also available in the Internet. The further setup steps are described in the online help of PACTware and the DTMs. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 50: Set Up With The Quick Setup

    The quick setup is another option for parameter adjustment of the sensor. It allows fast, convenient adjustment of the most important parameters to adapt the sensor quickly to standard applications. To use it, select the function "Quick setup" in the start screen. SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 51 Extended adjustment Maintenance Quick setup With quick setup you can carry out the parameter adjustment of SITRANS LG250 for your application in just a few simple steps. The assistant-driven adjustment includes the basic settings for simple, reliable setup and commissioning. Information: If the function is inactive, then possibly no instrument is connected.

  • Page 52: Saving The Parameterisation Data

    Saving the parameterisation data We recommend documenting or saving the parameterisation data via PACTware. That way the data are available for multiple use or service purposes. SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 53: Set Up With Other Systems

    Set up with other systems DD adjustment programs Device descriptions as Enhanced Device Description (EDD) are available for DD adjustment programs such as, for example, AMS↑ and PDM. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 54: Diagnostics And Servicing

    • Modification of a parameter • Switch-on and switch-off times • Status messages (according to NE 107) • Error messages (according to NE 107) The data are read out via a PC with PACTware/DTM or the control system with EDD. SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 55: Status Messages

    This status message is always active. It cannot be deactivated by the user. Function check: The instrument is being worked on, the measured value is temporarily invalid (for example during simulation). This status message is inactive by default. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 56 Disconnect operating voltage briefly munication Communication Send instrument for repair error F125 Temperature of the electronics in the Check ambient temperature Bit 7 non-specified range Impermissible Insulate electronics electronics tem- Use instrument with higher temper- perature ature range SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 57 S601 Level echo in the close range not Reduce level Bit 24 available Overfilling 100 % adjustment: Increase value Check mounting socket Remove possible interfering signals in the close range Use coaxial probe PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 58: Rectify Faults

    The operator of the system is responsible for taking suitable meas- tion occurs ures to rectify faults. The first measures are: Fault rectification • Evaluation of fault messages • Checking the output signal • Treatment of measurement errors SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 59 Amplitude or position of a false signal Determine the reason for the changed has changed (e.g. buildup); false signal false signals, carry out false signal sup- time suppression no longer matches pression, e.g. with buildup PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 60 Measured value remains re- Stored false signals in this position are Delete false signal suppression producible in one position larger than the level echo Carry out a new false signal suppression during emptying time SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 61 Amplitude or position of a false signal has Determine the reason for the changed false changed (e.g. condensation, buildup); false signals, carry out false signal suppression, signal suppression no longer matches ac- e.g. condensation time tual conditions PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 62 Carry out false signal suppression or in- jumps sporadically the antenna crease false signal suppression in the close towards 100 % dur- range by editing ing emptying With bulk solids use radar sensor with purg- ing air connection or flexible antenna cover time SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 63: Exchanging The Electronics Module

    If necessary, the cable or rod (measuring part) of the probe can be exchanged. Loosen the rod or cable with a fork wrench, wrench size 7 (rod ø 8, cable ø 2 and 4) or wrench size 10 (rod ø 12). Note: When exchanging the rod or cable, make sure that the instrument and the new rod or cable are dry and clean. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 64 3. Cable: remove the pins 4. Cable: Pull the cable out of the gravity weight 5. Shorten the cable/rod with a cut-off wheel or metal saw at the marking. Take note of the specifications in the following illustration when shortening the cable. 6. Cable with gravity weight: Shift the cable according to the drawing into the gravity weight SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 65: Software Update

    Current sensor software as file You can find the actual sensor software as well as detailed infor- mation of the procedure in the download area on our homepage: www.siemens.com/sitranslg. You can find information about the installation in the download file. Caution: Instruments with approvals can be bound to certain software versions. Therefore make sure that the approval is still effective after a software update is carried out. You can find detailed information in the download area on our home- page: www.siemens.com/sitranslg. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 66: How To Proceed If A Repair Is Necessary

    How to proceed if a repair is necessary If it is necessary to repair the instrument, please contact Siemens. You find the locations on "www.siemens.com/processautomation". SITRANS LG250 - Operating Instructions PBD-51041053...

  • Page 67: Dismount

    Pass the instrument directly on to a specialised recycling company and do not use the municipal collecting points. If you have no way to dispose of the old instrument properly, please contact us concerning return and disposal. PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 68: Supplement

    Ʋ Seal between housing and housing lid Silicone SI 850 R Ʋ Inspection window in housing cover Plastic housing: Polycarbonate (optional) Metal housing: Glass Ʋ Ground terminal 316L Ʋ Cable gland PA, stainless steel, brass Ʋ Sealing, cable gland Ʋ Blind plug, cable gland SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 69 ±(2 mm + 0.05 % of the cable length) Lateral load Ʋ Rod: ø 8 mm (0.315 in) 10 Nm (7.38 lbf ft) Ʋ Rod: ø 12 mm (0.472 in) 30 Nm (22.13 lbf ft) PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 70 Ʋ 2. FB Secondary Value 1 (filling height in %) Ʋ 3. FB Secondary Value 2 (distance value) Current value Ʋ Non-Ex and Ex ia instrument 10 mA, ±0.5 mA Ʋ Ex-d-ia instruments 16 mA, ±0.5 mA Resolution, digital < 1 mm (0.039 in) SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 71 Probe end does not touch the vessel bottom Sensor parameter adjustment No gating out of false signals carried out Fig. 28: Measuring ranges - SITRANS LG250 Reference plane Probe length L Measuring range (default setting refers to the measuring range in water)
  • Page 72 0,08 m 0,3 m 0,02 m (3.15 (11.811 " " (0.787 ") Fig. 29: Deviation SITRANS LG250 in rod version in water Dead zone (no measurement possible in this area) Probe length 15 mm (0.591 " 2 mm (0.079 ") -2 mm (-0.079...
  • Page 73 (3.15 ") Fig. 32: Deviation SITRANS LG250 in cable version (ø 2 mm/0.079 in), in medium oil Dead zone (no measurement possible in this area) When using a centering weight, it is only possible to measure up to the upper edge of the cerntering weight.
  • Page 74 (5.906 ") Fig. 33: Deviation SITRANS LG250 in cable version (ø 4 mm/0.157 in), in medium oil Dead zone (no measurement possible in this area) When using a centering weight, it is only possible to measure up to the upper edge of the cerntering weight.
  • Page 75 ") (1.969 ") 0,2 m (7.874 ") Fig. 35: Deviation SITRANS LG250 in cable version (ø 4 mm/0.157 in, PFA-coated), in oil Dead zone (no measurement possible in this area) Probe length Non-repeatability ≤ ±1 mm Variables influencing measurement accuracy Temperature drift - Digital output ±3 mm/10 K relating to the max.
  • Page 76 -20 … +150 °C (-4 … +302 °F) Ʋ FFKM (Kalrez 6375) - with tempera- -20 … +200 °C (-4 … +392 °F) ture adapter Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulk solids applications, until the output signal has taken for the first time 90 % of the final value (IEC 61298-2). SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 77 -40°C / -40°F Fig. 37: Ambient temperature - process temperature, version with temperature adapter Ambient temperature Process temperature (depending on the seal material) Aluminium housing Plastic housing Stainless steel housing, precision casting Stainless steel housing, electropolished PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 78 180 m (590.6 ft) Ʋ Min. bending radius (at 25 °C/77 °F) 25 mm (0.984 in) Ʋ Diameter approx. 8 mm (0.315 in) Ʋ Colour - Non-Ex version Black Ʋ Colour - Ex-version Blue SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 79 IP66/IP68 (0.2 bar) Type 6P polished Stainless steel, precision Single chamber IP66/IP68 (0.2 bar) Type 6P casting Double chamber IP66/IP67 Type 4X IP66/IP68 (0.2 bar) Type 6P Galvanic separation between electronics and metal housing parts PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 80: Device Communication Profibus Pa

    The master class 1 (e.g. PLC) cyclically reads out measured values from the sensor during opera- tion. The below block diagram below shows which data can be accessed by the PLC. When used with fulfilled housing protection IEC 61010-1 SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 81 Fig. 38: SITRANS LG250: Block diagram with AI FB 1 … AI FB 3 OUT values TB Transducer Block FB 1 … FB 3 Function Block Module of the PA sensors For the cyclic data traffic, SITRANS LG250 provides the following modules: • AI FB1 (OUT) – Out value of the AI FB1 after scaling •...
  • Page 82 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 Sign Significant Significant Exponent Significant (Exponent - 127) Value = (-1) (1 + Significant) Fig. 40: Data format of the measured value SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 83 - high limited 0 x 8d good (non-cascade) - ac- Lo-Lo-Alarm tive critical alarm - low limited 0 x 8e good (non-cascade) - ac- Hi-Hi-Alarm tive critical alarm - high limited PBD-51041053 SITRANS LG250 - Operating Instructions...

  • Page 84: Dimensions

    ½ NPT Fig. 42: Housing versions with protection rating IP66/IP68 (0.2 bar), (with integrated display and adjustment mod- ule the housing is 9 mm/0.35 in higher) Aluminium - single chamber Aluminium - double chamber SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 85 Fig. 43: Housing versions with protection rating IP66/IP68 (0.2 bar), (with integrated display and adjustment mod- ule the housing is 9 mm/0.35 in higher) Stainless steel single chamber (electropolished) Stainless steel single chamber (precision casting) Stainless steel double chamber housing (precision casting) PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 86 (0.79") (0.79") (0.79") Fig. 44: SITRANS LG250, threaded version with gravity weight (all gravity weights with thread M8 for eye-bolt) Sensor length, see chapter "Technical data" Cable version ø 2 mm (0.079 in) with gravity weight Cable version ø 4 mm (0.157 in) with gravity weight...
  • Page 87 SITRANS LG250, cable version with centering weight SW 36 (1.42") (G¾, ¾ NPT) SW 41 (1.61") (G1, 1 NPT) SW 46 (1.81") (G1½, 1½ NPT) G¾, ¾ NPT, G1, 1 NPT, G1½, 1½ NPT ø 4 mm ø 4 mm (0.16")
  • Page 88 G1½, 1½ NPT ø 8 mm ø 12¨mm (0.32") (0.47") Fig. 46: SITRANS LG250, threaded version Sensor length, see chapter "Technical data" Rod version ø 8 mm (0.315 in) Rod version ø 12 mm (0.472 in) SITRANS LG250 - Operating Instructions...

  • Page 89: Trademark

    11.4 Trademark All the brands as well as trade and company names used are property of their lawful proprietor/ originator. PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 90 Event memory 54 Quick setup 29 Factory calibration date 47 False signal suppression 34 Fault Read out info 47 – Rectification 58 Repair 66 Fault rectification 58 Replacement parts Functional principle 9 – Rod components 12 – Spacer 12 SITRANS LG250 - Operating Instructions PBD-51041053...
  • Page 91 Scaling unit 37 Sensor characteristics 47 Sensor status 39 Simulation 41 Software addressing 26, 31 Special parameters 47 Status bytes PA output value 83 Telegram configuration 82 Type label 8 Type of medium 32 Units 31 PBD-51041053 SITRANS LG250 - Operating Instructions...
  • Page 92 For more information www.siemens.com/level www.siemens.com/weighing Siemens Canada Limited Subject to change without prior notice PD PA PI LW PBD-51041053 Rev. 7.0 1954 Technology Drive P.O. Box 4225 © Siemens AG 2020 Peterborough, ON K9J 7B1, Canada email: techpubs.smpi@siemens.com Printed in Canada www.siemens.com/processautomation...

Table of Contents