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Pulsar dBi Series Instruction Manual

Intelligent transducer
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dBi Series (
)
Intelligent Transducer
I
M
NSTRUCTION
ANUAL

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Summary of Contents for Pulsar dBi Series

  • Page 1 Series ( Intelligent Transducer NSTRUCTION ANUAL...
  • Page 3 ARRANTY AND IABILITY Pulsar Process Measurement Limited guarantee for a period of 2 years from the date of delivery that it will either exchange or repair any part of this product returned to Pulsar Process Measurement Limited if it is found to be defective in material or workmanship, subject to the defect not being due to unfair wear and tear, misuse, modification or alteration, accident, misapplication or negligence.

  • Page 5: Table Of Contents

    Chapter 2 Installation............................9 Power Supply Requirements ........................... 9 Dimensions ..............................10 The dimensions of the dBi Series Intelligent Transducer are as shown below........... 10 Rear Thread Mount ..........................10 Front Thread Mount ..........................11 Outdoor and Open Vessel Installation ......................12 Closed Vessel Installation ..........................
  • Page 6 Checking the Software Revision and Serial Number ................33 Chapter 5 Parameter Guide ..........................35 Parameter Listing ............................35 Application..............................35 Operation ..............................35 P100 Mode of Operation ........................35 P102 Material ............................35 Distances ..............................36 P104 Measurement Units ........................36 P105 Empty Level ..........................
  • Page 7 P870 Fill Damping ..........................48 P871 Empty Damping ........................... 48 Filters ..............................48 P881 Fixed Distance ..........................48 P884 Peak Percentage ........................... 48 System ................................48 Password ..............................49 P921 Enable Code ..........................49 P922 Passcode ............................49 System Information ..........................49 P926 Software Revision ........................

  • Page 9: Chapter 1 Start Here

    Chapter 1 Start Here… Congratulations on your purchase of a Pulsar dBi Series Intelligent Transducer Level Monitoring System. This quality system has been developed over many years and represents the latest in high technology ultrasonic level measurement and control. It has been designed to give you years of trouble-free performance, and a few minutes spent reading this operating manual will ensure that your installation is as simple as possible.

  • Page 10: About The Dbi Series (Hart) Intelligent Transducer

    About the dBi Series (HART) Intelligent Transducer Functional Description The dBi Series Intelligent Transducer is a highly developed ultrasonic level measurement system which provides non-contacting level measurement for a wide variety of applications in both liquids and solids. Its unique design gives unrivalled performance in echo discrimination and accuracy in a loop powered device.
  • Page 11 All model types are available for use in hazardous area installations with either Ex mb or Ex ia ATEX certification. The dBi Series Intelligent Transducer has a 4 to 20mA output which can be programmed to give an output proportional to level, space, distance or volume, dependant on the measurement mode selected and provides a ‘fault...

  • Page 12: Product Specification

    Product Specification Physical Housing Mounting Overall Overall Nominal Model Material Connection Diameter Height Weight Valox Rear 77 mm 134 mm 1.0Kg dBi 3 metre 1″ BSP or NPT 357 PBT (3 inches) (5.3 inches) Valox Rear 86 mm 121 mm 1.2Kg dBi 6 metre 1″...

  • Page 13: Performance

    Hart Lite Communicator. Trace viewing ability and parameter upload/download capability via Hart Modem and dBi Hart PC. Pulsar Process Measurement Limited operates a policy of constant development and improvement and reserve the right to amend technical details as necessary. Page5...
  • Page 14 EC DECLARATION OF CONFORMITY Declaration No. 001001 We, the undersigned: Name of Manufacturer Pulsar Process Measurement Ltd. / Authorised representative Address: Pulsar Process Measurement Ltd Cardinal Building Enigma Commercial Centre Sandy's Road Malvern Worcestershire WR14 1JJ Country: England Declare under our sole responsibility that the following apparatus:...
  • Page 15 Ex approved dBi transducers. Name and position of person binding the manufacturer or authorised representative: Signature Name Steve Lycett Function Authorised Person Location Pulsar Process Measurement Ltd, WR14 1JJ Date of issue 2012-11-09 Page7...
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  • Page 17: Chapter 2 Installation

    Chapter 2 Installation Power Supply Requirements The dBi Series Intelligent Transducer operates from a DC supply of 10 to 28V and will typically draw less than 22mA. All electronic products are susceptible to electrostatic shock, so follow proper grounding procedures during installation.

  • Page 18: Dimensions

    Dimensions The dimensions of the dBi Series Intelligent Transducer are as shown below. Rear Thread Mount dBi 3 dBi 6 & 10 dBi 15 Page 10...

  • Page 19: Front Thread Mount

    Front Thread Mount dBi 3 & 6 dBi 10 Page11...

  • Page 20: Outdoor And Open Vessel Installation

    BSP/NPT rear thread or via the 1½″ or 2″ front thread, dependant on model. Care should be taken to ensure that the dBi Series Intelligent Transducer is not installed in direct sunlight, in order to avoid errors in the measurement of ambient temperature.

  • Page 21: Closed Vessel Installation

    “L” should as a minimum be at least that as detailed in the table above, but can be greater if required. The dBi Series Intelligent Transducer can be simply screwed into a flange and secured using the rear 1" BSP/NPT rear thread or via the 1½″...

  • Page 22: Cable

    PVDF or an optional PTFE faced Flanged Transducer is used. Please consult Pulsar for full availability of options. Cable The dBi Series Intelligent Transducer comes with a fitted integral cable, if this cable is extended then the total capacitance must not exceed the limits for the voltage applied.

  • Page 23: Typical Wiring For A Non-Hazardous Location

    Loop Resistance For two wire operation the maximum cable resistance allowable can be calculated from the graph below. For example if an dBi Series Intelligent Transducer was supplied from 24V, the maximum total cable resistance is 600 ohms, for a typical 77 ohm /km cable this would mean a maximum cable length of 600/77 = 7.8km,...

  • Page 24: Preparation For Operation

    If the equipment is installed or used in a manner not specified in this manual, then the protection provided by the equipment may be impaired. Preparation for Operation Before switching on, check the following:  The dBi Series Intelligent Transducer is mounted correctly.  The power supply is correctly installed. Page 16...

  • Page 25: Maintenance

    Maintenance There is no user serviceable parts inside your dBi Series Intelligent Transducer, if you experience any problems with the unit, then please contact Pulsar Process Measurement for advice. To clean the equipment, wipe with a damp cloth. Do not use any solvents on the enclosure.

  • Page 26: Hazardous Area Specific Power Supply And Barrier Requirements

    The certificate number has an ‘X’ suffix that indicates that the following special condition certification applies; In the case of dBi transducer range due to the housing and labels being non-conductive plastic care needs to be taken with regards electrostatic charge.
  • Page 27 The dBi transducers cable is a twisted pair with overall cable screen. The twisted pair are red and black, connect the red to +ve and the black to –ve. The screen should go to signal ground. Typical wiring for the two types of dBi transducers: Page19...
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  • Page 31: Chapter 3 How To Use Your Dbi Series Intelligent Transducer

    Customised factory calibration of Span is available; please contact Pulsar for further details. Important Information When the dBi Series Intelligent Transducer is operated below 8mA then the speed of response will decrease. See the following table for cycle times: Page23...

  • Page 32: Accessing Parameters

    HART PC Lite software contained on CD, which, when used with a HART Modem, see Chapter 2 Installation for full details on how to connect the modem, can be used to to carry out the programming of the dBi Series Intelligent Transducer.
  • Page 33 Insert the CD into the CD drive of the PC intended to be used to carry out the programming of the dBi Series Intelligent Transducer and install the software, following the on screen instructions. Once the software is installed connect the computer via a convenient USB port to the HART Modem.

  • Page 34: Connection

    To connect to the dBi Series Intelligent Transducer ‘click’ on the ‘Search’ button which will then change to ‘Scanning’ and once a connection with a device has been established it will change to ‘Connected’ and the ‘Status’ button will show ‘Connected’ and flash Green, if the dBi HART PC Lite fails to connect please check the Comport Configuration as detailed on page 29.
  • Page 35 4mA representing 0% (empty) and 20mA representing 100% (full). Range Shows the maximum range that can be measured, by the dBi Series Intelligent Transducer, that is currently connected. Bar Graph Display Gives a graphical indication of the Empty Distance (P105) and Maximum Span (P106) along with current level being measured.

  • Page 36: Configuration

    Configuration Parameter Get/Set Get: Will read and display the current value of the parameter selected along with the ‘units’ of measurement, where used, and the description of the parameter selected. Select the desired parameter form the drop down ‘Parameter’ box and ‘click’...

  • Page 37: Communication Port Configuration

    Communication Port Configuration If the dBi HART PC Lite fails to connect to the dBi Series Intelligent Transducer you may need to change the communications port that is being used, to do this ‘click’ on the ‘Comport’ menu in the top menu bar and the ‘Comm Port Setup’...

  • Page 38: Parameter Defaults

    Factory Defaults P930, as described in Chapter 5 Parameter Guide. Once you are satisfied with the installation, and the dBi Series Intelligent Transducer is reading what you would expect in terms of distance from the face of the transducer to the material level, then you can proceed with any programming, required for the intended application.

  • Page 39: Chapter 4 Getting Results With Your Dbi Series Intelligent Transducer

    Near blanking (P107) is the distance from the face of the transducer that the dBi Series Intelligent Transducer will not record a level nearer than. A typical reason to increase this from the default value would be if you wish to ignore close in obstructions.

  • Page 40: Setting Security Passcodes

    PC Software’s. You can set a new passcode to prevent anyone changing any of your settings within your dBi Series Intelligent Transducer. The default passcode is 1997, but this may be changed as follows. Additional Information The passcode is also used for remote access using certain PC Software’s, so...

  • Page 41: Checking The Information Specific To Your Dbi Series Intelligent Transducer

    Checking the Information Specific to your dBi Series Intelligent Transducer There are some parameters dedicated to each individual dBi Series Intelligent Transducer, such as the software revision and the units serial number. Checking the Software Revision and Serial Number If you need to identify the serial number of the unit or the current level of software in your dBi Series Intelligent Transducer, the following parameters can be used.
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  • Page 43: Chapter 5 Parameter Guide

    Chapter 5 Parameter Guide Parameter Listing This chapter describes all of the parameters contained within the dBi (HART) Series Intelligent Transducer. Application Operation P100 Mode of Operation This parameter sets the mode of operation, when in run mode, and can be set to one of the following: Option Description...

  • Page 44: Distances

    This parameter is the distance from the face of the transducer that is not measurable, and is pre-set to the minimum value dependant on the version of dBi Series Intelligent Transducer being used. It should not be set to less than this figure, but can be increased.

  • Page 45: P108 Far Blanking Distance

    P108 Far Blanking Distance This is the distance (as a percentage of empty level) beyond the empty point that the unit will be able to measure, and the default is pre-set to 10% of the empty level. If the surface being monitored can extend beyond the Empty Level (P105) then the far blanking distance can be increased to a maximum of 100% of empty level.

  • Page 46: P586 Current Temperature

    P586 Current Temperature This parameter displays the current temperature. Transducer Power Information The following parameters provide information on when the dBi Series Intelligent Transducer was last powered down and how long it had run for. P940 Number of Starts This parameter displays the number of times that the unit has been powered since leaving the factory.

  • Page 47: Volume

    Volume Conversion P600 Vessel Shape This parameter determines which vessel shape is used when utilising “Volume Conversion”. The choices are as shown in the table below, along with the dimensions that are required to be entered (P601-P603). Dimensions Vessel Shape P600 Value Required Cylinder diameter...
  • Page 48 Dimensions Vessel Shape P600 Value Required P600=6 Cylindrical Cylinder diameter Flat sloped base and height of bottom P600=7 Rectangular Width and Breadth Flat sloped base of rectangular section and height of bottom P600=8 Horizontal Cylinder diameter cylinder with flat ends and tank length P600=9 Horizontal Cylinder diameter,...

  • Page 49: P601-P603 Vessel Dimensions

    P604 Calculated Volume This parameter displays the maximum volume that has been calculated by the dBi Series Intelligent Transducer and is a Read Only parameter. The volume displayed will be shown in cubic meters and is the total volume available between empty level (P105) and 100% of span (P106).

  • Page 50: P605 Volume Units

    P607 Max Volume This parameter displays the actual maximum volume that has been calculated by the dBi Series Intelligent Transducer, i.e. P604 Calculated Volume x P606 Correction Factor, and is a Read Only parameter. The volume displayed will be shown in P605 Volume Units and is the total volume available between empty level (P105) and 100% of span (P106).

  • Page 51: Breakpoints

    Breakpoints P610-P641 Level/Volume Breakpoints These parameters are used to create a profile of the vessel when P600=11 (universal linear) or P600=12 (universal curved). You should enter breakpoints in pairs, a reading for level and its corresponding volume. The more pairs you enter, the more accurate the profile will be. In the case of universal linear, then enter the level/volume at each of the points where the vessel changes shape.

  • Page 52: P696 Reset Breakpoints

    Universal Curved (P600=12) This volume calculation creates a curved approximation of the level/volume relationship, and works best if the vessel is non-linear, and there are no sharp angles. Level You should enter 2 level/volume breakpoints at the minimum and maximum levels, and several for each place where the vessel has got an arc.

  • Page 53: Ma Output

    mA Output P834 mA Low Level This parameter sets, in Measurement Units (P104), the value of ‘level’, ‘distance’ or ‘space’, depending on the selected Mode of Operation (P100), at which 4mA will occur. P835 mA High Level This parameter sets, in Measurement Units (P104), the value of ‘level’, ‘distance’...

  • Page 54: P809 Fail-Safe Time

    P809 Fail-safe Time In the event of a fail-safe condition occurring the fail safe timer determines the time before fail-safe mode is activated. Default = 2.00 mins If the timer activates, the unit goes into fail-safe, as determined by P808, (Display and P840 (mA Output).

  • Page 55: P860 Sound Velocity

    P860 Sound Velocity This option allows for the velocity of sound to be changed according to the atmosphere the transducer is operating in. By default the velocity is set for 342.72m/sec which is the speed of sound travelling in air at a temperature of The table below gives details of the velocity of sound in various gaseous atmospheres In all cases the velocity indicated is that in a 100% gaseous atmosphere at 0...

  • Page 56: Stability

    “angles of repose” presented by the way the material settles. Please consult Pulsar, for further information and assistance on changing the value of this parameter. System...

  • Page 57: Password

    Password P921 Enable Code Enables the passcode (P922), which means the passcode must be entered to go into program mode. If disabled (set to 0), then no passcode is required, and pressing ESC and ENTER button simultaneously will allow entry into the program mode. P922 Passcode This is the passcode that must be used to enter program mode.

  • Page 58: Loe Save Trace

    LOE Save Trace P950 Save DATEM Trace on LOE When enabled this parameter will ensure that in the event of the unit going into a LOE situation a trace at the time of the LOE occurrence is saved for future reference. Option Description 0 = Off...

  • Page 59: P905 Peak Clearance

    This parameter is used to set the “height” above which the DATEM trace will “stand off” from around unwanted echoes such as obstructions. Please consult Pulsar for further information and assistance on changing the value of this parameter. P906 Side Clearance This parameter is used to set the “distance”...
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  • Page 61: Chapter 6 Troubleshooting

    Chapter 6 Troubleshooting This section describes many common symptoms, with suggestions as to what to do. Symptom What to Do Transducer not firing. Check power supply Unit indicates a “L0E” No valid echo being received and unit has gone into fault condition. Check situation.

  • Page 62: Parameter Record

    Parameter Record PPLICATION Parameter Details Entered Values Description Default P100 Mode 2 = Level P102 Material 1 = Liquid Model Dependant P104 Measurement Units Model Dependant P105 Empty Level Model Dependant P106 Span Model Dependant P107 Near Blanking P108 Far Blanking Temperature Parameter Details Entered Values...
  • Page 63 OLUME Conversion Parameter Details Entered Values Description Default P600 Vessel Shape P601 Vessel Dimension 1 0.00 P581 P602 Vessel Dimension 2 0.00 P603 Vessel Dimension 3 0.00 P604 Calculated Volume Read Only Model Dependant P605 Volume Units P606 Correction Factor P607 Max Volume Read Only...
  • Page 64 P635 Volume Breakpoint 13 0.00 P636 Level Breakpoint 14 0.00 P637 Volume Breakpoint 14 0.00 P638 Level Breakpoint 15 0.00 P639 Volume Breakpoint 15 0.00 P640 Level Breakpoint 16 0.00 P641 Volume Breakpoint 16 0.00 P696 Reset Breakpoints Number of B’points Set Read Only P697 mA O UTPUT...
  • Page 65 TABILITY Damping Parameter Details Entered Values Description Default Model Dependant P870 Fill Damping Model Dependant P871 Empty Damping Filters Parameter Details Entered Values Description Default P881 Fixed Distance 0.2 metre P884 Peak Percentage YSTEM Parameter Details Entered Values Description Default P921 Enable Code 1 = Yes...

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