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Pulsar dBi Series Instruction Manual

Intelligent transducer
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dBi Series (
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Intelligent Transducer
Instruction Manual

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  • Page 1 Free DTM now available Contact Pulsar for more information dBi Series ( Intelligent Transducer Instruction Manual...
  • Page 3 Pulsar Process Measurement Limited. WARRANTY AND LIABILITY 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...

  • Page 4: Table Of Contents

    CONTENTS Chapter 1: Start Here… ......................6 About this Manual ....................... 6 About the dBi Series (HART) Intelligent Transducer ..........7 Functional Description ....................... 7 Product Specification ......................9 EU Declaration of Conformity ..................11 Chapter 2 Installation ......................12 Unpacking ..........................
  • Page 5 PULSAR MEASUREMENT Application ........................... 35 Operation ..........................35 Distances ..........................35 Data Logs ..........................37 Volume ..........................39 Conversion ........................... 39 Conversion ........................... 39 Breakpoints .......................... 44 Tables ............................. 45 mA Output ........................... 46 Stability ..........................49 System ........................... 49 DATEM ...........................

  • Page 6: Chapter 1: Start Here

    There are various parts of the manual that offer additional help or information as shown. Tips TIP: Look f or this ic on throu ghout your Pulsar Measu rem ent manual t o find helpful info rmation and answers to frequently asked que stion s . Additional Information...

  • Page 7: 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 8 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 condition’...

  • Page 9: Product Specification

    PULSAR MEASUREMENT Product Specification PHYSICAL Dimensions & Mounting dBi3: 77mm dia x 134mm high (3 x 5.31 inch) Rear thread 1” BSP/NPT dBi6 & dBi10: 86mm dia x 121 high (3.38 x 4.75 inch). Rear thread 1” BSP/NPT dBi15: 86mm dia x 134 mm high (3.38 x 5.32 inch). Rear 1”...
  • Page 10 Power Consumption Current consumption at start-up = 12mA, unit powered every 15 minutes for 4 seconds the average current = 53µA Pulsar Measurement operates a policy of constant development and improvement and reserve the right to amend technical details, as necessary.

  • Page 11: Eu Declaration Of Conformity

    PULSAR MEASUREMENT EU Declaration of Conformity...

  • Page 12: Chapter 2 Installation

    Pulsar Measurement. Power Supply Requirements The dBi Series Intelligent Transducer operates from a DC supply of 10 to 28V and will typically draw less than 22mA. The compact one-piece construction of the dBi Series Intelligent Transducer can be mounted easily using either the 1″BSP/NPT rear mounting thread or...

  • Page 13: Dimensions

    PULSAR MEASUREMENT Dimensions The dimensions of the dBiSeries Intelligent Transducer are shown below: Rear Thread Mount dBi 3 dBi 6 & dBi10 77mm ø (3”) 86mm ø (3.4”) dBi 15 86mm ø (3.4”)
  • Page 14 DBI (HART) INSTRUCTION MANUAL Front Thread Mount dBi 3 1.5” Thread (49mm (1.93”) Clearance 77mm ø (3”) dBi 6 & dBi 10 2” Thread (61mm (2.40”) Clearance hole) 77mm ø (3”)

  • Page 15: Outdoor And Open Vessel Installation

    1" 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, to avoid errors in the measurement of ambient temperature.

  • Page 16: 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 17: Cable

    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 18: Typical Wiring For A Non-Hazardous Location

    DBI (HART) INSTRUCTION MANUAL Typical wiring for a Non-Hazardous location The HART modem and PC or HART programmer are used to set up the operation parameters for the dBi transducer. The output can either be as a 4-20mA current giving level or distance or as a digital signal via a HART master.

  • Page 19: Preparation For Operation

    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, remember this total cable resistance, so this...

  • Page 20: Maintenance

    DBI (HART) INSTRUCTION MANUAL Maintenance There are 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 21 PULSAR MEASUREMENT 7. The certificate number has an ‘X’ suffix that indicates that the following special condition of 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 22 DBI (HART) INSTRUCTION MANUAL 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:...
  • Page 23 PULSAR MEASUREMENT...
  • Page 24 DBI (HART) INSTRUCTION MANUAL...

  • Page 25: Chapter 3 How To Use Your Dbi Sensor

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

  • Page 26: Accessing Parameters

    To view or change parameters values one of the following methods must be used: Hart Commands If familiar with the use of HART protocol and the dBi Series Intelligent Transducer is connected to a HART modem, then it can be programmed following normal HART procedures.
  • Page 27 PULSAR MEASUREMENT 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 28 DBI (HART) INSTRUCTION MANUAL Connection On the opening screen the following Information is available: Live List Gives details of all devices connected, if more than one device is present the ‘Live List’ will become a drop-down box and the required device selected. Poll Address Gives the Poll Address of the selected Device.
  • Page 29 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...
  • Page 30 DBI (HART) INSTRUCTION MANUAL 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’...

  • Page 31: Parameter Defaults

    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 32: Chapter 4 Getting Results From Your Dbi Sensor

    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 33: Setting Security Passcodes

    PULSAR MEASUREMENT By default, the 4-20 mA will represent the operational span of the dBi model in use, with empty (0% full) = 4mA and full (100% of the operational span) = 20mA, but you may wish to only represent a section of the operational span.

  • Page 34: Checking The Information Specific To Your Dbi Intelligent Transducer

    DBI (HART) INSTRUCTION MANUAL Checking the Information Specific to your dBi Intelligent Transducer There are some parameters dedicated to each individual dBi Series Intelligent Transducer, such as the software revision and the unit’s serial number. Checking the Software Revision and Serial Number...

  • Page 35: Chapter 5 Parameter Listing And Description

    PULSAR MEASUREMENT CHAPTER 5 PARAMETER LISTING AND DESCRIPTION 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: DECRIPTIONS OPTION 1= Distance Display shows the distance from the transducer face to the surface.
  • Page 36 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 37: Data Logs

    This parameter displays the time when the maximum temperature was recorded. 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.
  • Page 38 DBI (HART) INSTRUCTION MANUAL P940 Number of Starts This parameter displays the number of times that the unit has been powered since leaving the factory. P941 Last Power Off Date This parameter displays the last date on which the power was removed from the unit.

  • Page 39: Volume

    PULSAR MEASUREMENT Volume Conversion P600 Vessel Shape This parameter determines which vessel shape is used when utilising “Volume Conversion”. 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).
  • Page 40 DBI (HART) INSTRUCTION MANUAL VESSEL SHAPE P600 VALUE DESCRIPTION DIMENSIONS P600 = 1 Rectangular Flat Width and Breadth Base Cylinder diameter P600 = 4 Parabola Base and height of bottom P600 = 5 Flat Sloped Base Cylinder diameter Cylinder diameter P600 = Flat Sloped Base and height of bottom...
  • Page 41 PULSAR MEASUREMENT P600 VALUE VESSEL SHAPE DIMENSIONS DESCRIPTION P600 = 8 Horizontal Cylinder diameter cylinder with flat ends and tank length Cylinder diameter, P600 = 9 Horizontal length of one end cylinder with parabolic and section, and ends tank length...
  • Page 42 DBI (HART) INSTRUCTION MANUAL P601-P603 Vessel Dimensions These three parameters are used to enter the dimension required to calculate the volume. The dimensions required are as shown below and are entered Measurements Units (P104). VESSEL SHAPE P601 P602 P603 P600 = 0 Cylinder Not required Not required...
  • Page 43 PULSAR MEASUREMENT P605 Volume Units This parameter determines the units that you wish to display, for volume conversion. It is used in conjunction with P607 (maximum volume), and the units are shown on the display (subject to P810). The choices are:...

  • Page 44: Breakpoints

    DBI (HART) INSTRUCTION MANUAL 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.

  • Page 45: Tables

    PULSAR MEASUREMENT 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. 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 46: Ma Output

    DBI (HART) INSTRUCTION MANUAL 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 47 PULSAR MEASUREMENT P809 Fail-safe Time In the event of a fail-safe condition occurring the failsafe 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 48 DBI (HART) INSTRUCTION MANUAL 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 20 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...

  • Page 49: 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.
  • Page 50 DBI (HART) INSTRUCTION MANUAL 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.

  • Page 51: Datem

    PULSAR MEASUREMENT 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.
  • Page 52 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”...

  • Page 53: Chapter 6 Troubleshooting

    PULSAR MEASUREMENT CHAPTER 6 TROUBLESHOOTING This section describes many common symptoms, with suggestions as to what to do. POSSIBLE CAUSES ACTION Check power supply Transducer not firing. No valid echo being received, and unit has gone into fault condition. Check material level is not Unit indicates a “L0E”...

  • Page 54: Chapter 7 Disposal

    DBI (HART) INSTRUCTION MANUAL CHAPTER 7 DISPOSAL Incorrect disposal can cause adverse effects to the environment. Dispose of the device components and packaging material in accordance with regional environmental regulations including regulations for electrical \ electronic products. Transducers Remove power, disconnect the Transducer, cut off the electrical cable and dispose of cable and Transducer in accordance with regional environmental regulations for electrical \ electronic products.
  • Page 55 S U P P O R T @ P U L S A R M E A S U R E M E N T . C O M Copyright © 2020 Pulsar Measurement Ltd. Registered Address: 1 Chamberlain Square CS, Birmingham B3 3AX Registered No.: 3345604 England &...

This manual is also suitable for:

Dbi3Dbi6Dbi10Dbi15

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