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PULSAR MEASUREMENT
DFM 6.1
Instruction Manual
Revision 4.0

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  • Page 1 PULSAR MEASUREMENT DFM 6.1 Instruction Manual Revision 4.0...
  • Page 2 Note: This page has been left blank intentionally.
  • Page 3: Table Of Contents

    PULSAR MEASUREMENT CONTENTS EU DECLARATION OF CONFORMITY ............................... 4 CONNECTIONS ......................................... 5 HAZARDOUS AREA WIRING INSTRUCTIONS ............................7 KEYPAD SYSTEM ....................................... 8 CALIBRATION MENU ...................................... 9 ICONS ..........................................10 MAIN DISPLAY......................................... 11 MESSAGE ICON ....................................... 11 STATUS ..........................................11 PASSWORD ........................................12 MENU SELECTIONS .......................................
  • Page 4: Eu Declaration Of Conformity

    DFM 6.1 INSTRUCTION MANUAL Available in Adobe Acrobat pdf format EU DECLARATION OF CONFORMITY EU Declaration of Conformity – Pulsar Measurement DFM 6.1 Transit-Time Flow Meter This declaration of conformity is issues under the sole responsibility of the manufacturer. Relevant Directive(s) 2014/30/EU –...
  • Page 5: Connections

    QUICK BENCH TEST Connect Sensor as shown on next page, then Power. Test operation of the DFM 6.1 by holding the sensor in one hand and rubbing your thumb or fingers briskly across the face (plastic surface) of the sensor. Allow 15 seconds...
  • Page 6 DFM 6.1 INSTRUCTION MANUAL CONNECTIONS SENSOR SERIAL COMMUNICATION OPTION RS-485 Output EXTRA RELAYS OPTION RLY3 RLY4 RLY5 RLY6 POWER INPUT – 4-20mA HEATER OPTION RLY2 RLY1 SENSOR...
  • Page 7: Hazardous Area Wiring Instructions

    When using optional intrinsic safety barriers, follow the instructions in the control drawing for proper adherence to the conditions of acceptability. When the intrinsic safety barrier option is purchased with the DFM 6.1, the proper barriers come pre-installed inside the DFM 6.1 electronics housing.
  • Page 8: Keypad System

    KEYPAD SYSTEM The diagram on the next page shows the DFM 6.1 menu system. Arrows show the four directions to leave a menu box. Pressing a corresponding keypad arrow will move to the next item in the direction shown. Move the cursor (highlighted) under numerals and increase or decrease numerals with the ...
  • Page 9: Calibration Menu

    PULSAR MEASUREMENT CALIBRATION MENU - - Un i t s / Mo d e - - - - - - - -  Mo d e F l o w L i n e a r Vo l u me...
  • Page 10: Icons

    DFM 6.1 INSTRUCTION MANUAL ICONS Message waiting. Press  Data logging Data logging USB file download. File download completed. Download Error.
  • Page 11: Main Display

    USG/ m 0.00 The main display shows the units selected from the Units/Mode menu, flow or velocity rate being measured, totalizer and relay states. The DFM 6.1 will start- up with this display. T o t 2 0 1 3 0 USG...
  • Page 12: Password

    DFM 6.1 INSTRUCTION MANUAL 24 HR LOG Press  from the main display to view a formatted flow report from instruments with a built-in data logger. Press  to scroll down one day or repeatedly to scroll to a specific date. Up to 365 days can be stored. Newest date will overwrite the oldest.
  • Page 13: Units/Mode

    PULSAR MEASUREMENT UNITS/MODE - - Un i t s / Mo d e - - - - - - - -  Mo d e F l o w L i n e a r At Mode, press the  and then the  or  to select Flow or Velocity. Flow Vo l u me mode displays the flow rate in engineering units (e.g.
  • Page 14 DFM 6.1 INSTRUCTION MANUAL UNITS/MODE (cont.) - - Un i t s / Mo d e - - - - - - - -  Mo d e F l o w L i n e a r At Flow, press the  and then the  or  to select the engineering units Vo l u me for flow rate.
  • Page 15: Calibration

    PULSAR MEASUREMENT CALIBRATION - - Ca l i b r a t i o n - - - - - - -  Mo d e F l o w 2 0 mA 5 0 0 USG/ m Press  or  to position curser at Calibration menu, and  to enter. Use ...
  • Page 16 DFM 6.1 INSTRUCTION MANUAL CALIBRATION (cont.) - - Ca l i b r a t i o n - - - - - - -  Mo d e F l o w 2 0 mA 5 0 0 USG/ m Choose between OFF, FIR (Default), or LOW PASS.
  • Page 17: Relay Parameters

    PULSAR MEASUREMENT RELAY PARAMETERS - - Re l a y Pa r a me t e r s - -  Re l a y F u n c t i o n F l o w Press  or  to position curser at Relay Parameters, and  to enter. Use ...
  • Page 18: Data Logging

    Minutes and Seconds. Press  to store the setting. Press  or  to select the logging interval. Press  to Interval store the setting. Pulsar Measurement recommends choosing an interval which will give you as much resolution as required and no more. Choosing too often...
  • Page 19 PULSAR MEASUREMENT RETRIEVING LOG FILE Plug a USB Flash Memory Drive (one is included with the DFM 6.1) into the USB output port on the Panel of the meter. The instrument display will show the data download icon until the log file is transferred to the memory card.
  • Page 20: Communication (Optional)

    DD files for the Emerson 475 Communicator. Files: The files are included in the USB drive provided with your DFM 6.1 meter. You may also request the files from Pulsar Measurement by calling or emailing us at info@pulsarmeasurement.com. Warning: The DFM 6.1 and associated DDs are pending certification from the Fieldcomm Group.
  • Page 21 PULSAR MEASUREMENT COMMUNICATION (Optional) cont. Device address for the DFM. Valid range: 001-247 Address (Default: 001). This number should be unique across the (Modbus) bus. Press  or  to scroll,  to select digits, and press  to store the setting.
  • Page 22: Special Functions

    DFM 6.1 INSTRUCTION MANUAL SPECIAL FUNCTIONS - - Sp e c i a l F u n c t i o n s -  L a n g u a g e En g l i s h An a l o g Ou t...
  • Page 23 Ba c k l i g h t Hi g h a Pulsar Measurement representative to do so. The Re s e t T o t a l i z e r Ne g . T o t a l s function captures the ultrasonic signal so that it can Re v .
  • Page 24 DFM 6.1 INSTRUCTION MANUAL SIMULATION - - Si mu l a t i o n - - - - - - - -  T e s t Ac t u a l F l o w 2 5 0 USG Press ...
  • Page 25: Sensor Mounting Location

    PULSAR MEASUREMENT SENSOR MOUNTING LOCATION The position of the sensor is one of the most important considerations for accurate flow measurement. The same location guidelines apply to Doppler as most other types of flow meters. VERTICAL OR HORIZONTAL PIPE - Vertical pipe runs generally provide evenly distributed flow.
  • Page 26 DFM 6.1 INSTRUCTION MANUAL SENSOR MOUNTING Prepare an area 2" wide by 4" long (50mm x 100mm) for sensor bonding by removing loose paint, scale and rust. The objective of site preparation is to eliminate any discontinuity between the sensor and the pipe wall, which would prevent acoustical coupling.
  • Page 27 Warm temperatures, moisture and vibration will accelerate this process. Super Lube ® as supplied with the DFM 6.1 (and available from Pulsar Measurement or home improvement stores) is recommended for semi-permanent installations.
  • Page 28 DFM 6.1 INSTRUCTION MANUAL SENSOR MOUNTING/COUPLING RECOMMENDATIONS...
  • Page 29: Enclosure Installation

    Locate the enclosure within 20 ft (6 m) of the sensor (500 ft -150 m optional). The enclosure can be wall mounted with the four mounting screws (included) or panel mounted with Option PM Panel Mount kit from Pulsar Measurement.
  • Page 30: Field Troubleshooting

    Ensure correct power input Ground  connection (<1 ohm resistance). Ensure 4-20mA Shield connected to  Instrument Ground stud. Cross talk between two or more DFM 6.1 Refer to Synchronization instructions  flowmeters on same pipe Follow Drive manufacturers wiring and ...
  • Page 31 PULSAR MEASUREMENT CORRECTIVE ACTION: POSSIBLE CAUSES: NO FLOW INDICATION Relocate sensor in more turbulent pipe Not enough suspended particles or gases in the  section. fluid Mount sensor at 12 o'clock position on  horizontal pipe Coupling compound washed out, or sensor loose Remount sensor ...
  • Page 32 DFM 6.1 INSTRUCTION MANUAL SENSOR CABLE RESISTANCE TEST Unplug the green sensor terminal from the Doppler board and connect the sensor wires as shown. With a multimeter, perform resistance checks for each set of wires. One single loose terminal may cause false readings.
  • Page 33: Common Questions And Answers

    PULSAR MEASUREMENT COMMON QUESTIONS AND ANSWERS The pipe vibrates. Will it affect the flow meter? Common vibration frequencies are far lower than the sonic frequencies used by the flow meter and will not normally affect accuracy or performance. However, applications where very weak Doppler signal is present (when sensitivity is adjusted to maximum and signal strength is low), accuracy may be affected by pipe vibration, or the flow meter may show readings under no-flow conditions.
  • Page 34 Does the DFM 6.1 require periodic recalibration? DFM 6.1 calibration does not drift over time. The solid-state sensor has no moving parts to wear and affect calibration. The Doppler flow technique generates an ultrasonic signal proportional to the velocity of flow. All timing/counting circuits use crystal-controlled frequency references to eliminate any drift in the processing circuitry.
  • Page 35: Applications Hotline

    Obtain an RMA Number from Pulsar Measurement - Before shipping a product to the factory please contact Pulsar Measurement by telephone, fax or email to obtain an RMA number (Returned Merchandise Authorization). This ensures fast service and correct billing or credit.
  • Page 36 Pulsar Measurement will replace or repair, free of charge, any Pulsar product if it has been proven to be defective within the warranty period. This warranty does not cover any expenses incurred in the removal and re-installation of the product.
  • Page 37: Options

    PULSAR MEASUREMENT OPTIONS EXTRA SENSOR CABLE (OPTION DXC) Each flow meter includes 25 ft / 7.6m (or 50 ft / 15m or 100 ft / 30m optional) continuous shielded coaxial pair cable. Additional cable and Cable Junction Box (Option JB2X) may be ordered to extend cable up to 500 ft (152m) as required during installation.
  • Page 38 DFM 6.1 INSTRUCTION MANUAL SENSOR CABLE JUNCTION BOX (OPTION JB2X) Optional Watertight steel NEMA4 Junction Boxes with terminal strips are available from Pulsar Measurement. Velocity Sensor QZ02L-B (Optional) Minimum Velocity: 0.1 ft/sec (0.03 m/sec) Maximum Velocity: 20 ft/sec (6.2 m/sec) Operating Temperature: 5 to 150°F (-15 to 65°C)
  • Page 39 PULSAR MEASUREMENT ENCLOSURE HEATER AND THERMOSTAT - Option TH Instruments can be factory-equipped with an Enclosure Heater and Thermostat or the module can be customer- installed. The Thermostat is factory set to turn ON at 40°F (4.5°C) and OFF at 60°F (15.5°C). Power consumption is 15 Watts.
  • Page 40 QUICK BENCH TEST: Connect Sensor as shown below, then Power. Test operation of the DFM 6.1 by holding the sensor in one hand and rubbing your thumb or fingers briskly across the face (plastic surface) of the sensor. Allow 15 seconds for the DFM 6.1 to process the signal and display a flow value.
  • Page 41: Modbus® Communication

    PULSAR MEASUREMENT MODBUS® COMMUNICATION MODBUS® serial interface connections are made at the RS485 card’s terminal block if your DFM 6.1 was ordered with this card, or if one was added after installation. Card location: SENSOR SERIAL COMMUNICATION RS-485 Output EXTRA RELAYS OPTION...
  • Page 42 DFM 6.1 INSTRUCTION MANUAL Transceiver: 2-wire, half-duplex MODBUS Address (MAC address) range: 1-255 (Default: 001) BAUD rates: 4800, 9600, 19200, 38400, 57600, 76800 or 115200 (Default: 9600) Data Bits: Parity: None, Even, Odd (Default: Even) Stop Bits: 1, 2 (Default: 1)
  • Page 43 Over Read/ Comments Address Type Range Range Write Reset Volume Coil Read/ Turn coil ON (1) to reset total on DFM 6.1. Total Write Turn coil to OFF (0) once reset is complete. Register Description Register Data Over Read/ Comments...
  • Page 44 DFM 6.1 INSTRUCTION MANUAL Register Description Register Type Format Type Comments Address 30114 Flow Rate - USG/day Input Register Floating Point Register (2 of 2) 30115 Flow Rate - ft Input Register Floating Point Register (1 of 2) 30116 Flow Rate - ft...
  • Page 45 PULSAR MEASUREMENT Register Description Register Type Format Type Comments Address 30140 Flow Rate - m /day Input Register Floating Point Register (2 of 2) 30141 Flow Rate - IG/sec Input Register Floating Point Register (1 of 2) IG = Imperial Gallons...
  • Page 46 DFM 6.1 INSTRUCTION MANUAL Register Description Register Type Format Type Comments Address 30165 Previous day Average Input Register Floating Point Register (1 of 2) Flow Rate - GPM (USG/min) 30166 Previous day Average Input Register Floating Point Register (2 of 2)
  • Page 47 PULSAR MEASUREMENT Register Description Register Type Format Type Comments Address 30188 Previous day Average Input Register Floating Point Register (2 of 2) USMG = US Million Gallons Flow Rate - USMG/min 30189 Previous day Average Input Register Floating Point Register (1 of 2)
  • Page 48 DFM 6.1 INSTRUCTION MANUAL Register Description Register Type Format Type Comments Address 30212 Previous day Average Input Register Floating Point Register (2 of 2) IG = Imperial Gallons Flow Rate - IG/day 30213 Previous day Average Input Register Floating Point Register (1 of 2)
  • Page 49 PULSAR MEASUREMENT Register Description Register Type Format Type Comments Address 30309 Volume Total - USMG Input Register Floating Point Register (1 of 2) USMG = US Million Gallons 30310 Volume Total - USMG Input Register Floating Point Register (2 of 2)
  • Page 50 DFM 6.1 INSTRUCTION MANUAL Register Description Register Type Format Type Comments Address 30904 Run Hours Input Register Floating Point Register (1 of 2) 30905 Run Hours Input Register Floating Point Register (2 of 2) 30923 Sensor Status Input Register Index (0-10)
  • Page 51 PULSAR MEASUREMENT 0 = Feet per Second 30947 Velocity Units Input Register Index (0 to 1) 1 = Meter per Second 30948 Flow Units Input Register Index (0 to 31) 0 = US Gallons per Minute 1 = Litres per Second...
  • Page 52: Hart® Communication

    HART® (Highway Addressable Remote Transducer) connections are made on the 4-20mA output of the DFM 6.1. The DFM 6.1 must be equipped with the optional serial communication card for the Communication menu to appear, and for the HART option to be able to be selected in the Communication menu. 4-20mA output location:...
  • Page 53 Install Emerson Field Communicator Easy Upgrade Utility from Emerson website http://www3.emersonprocess.com/ams/fieldcommunicatorsupport/ Run Field Communicator Easy Upgrade utility. Locate the DD Files from the Pulsar Measurement USB drive included with the DFM 6.1. 6109E3FD0101.hdd Make sure your PC software is up to date by clicking Update PC.
  • Page 54 DFM 6.1 INSTRUCTION MANUAL Click on Utilities form the left menu pane. Click on Import DDs from a local source. A popup window is displayed as shown below. Navigate to the directory containing the DD files using the Browse button. Select the desired DD files that shows up for your HART device. Click OK.
  • Page 55 PULSAR MEASUREMENT Under Connect Field Communicator, select the type of the connection your device utilizes. Then click Connect. 10. Select Field Communicator from list shown below.
  • Page 56 DFM 6.1 INSTRUCTION MANUAL 11. Once connected, click More Options. The System Software Tab Is now opened. Click the DDs tab.
  • Page 57 PULSAR MEASUREMENT 12. The newly uploaded DD from the Utilities: Import DDs from Local source. Select the DD file you wish to send to the Field communicator. If package is untested, slect Yes in the Check an untested package dialog...
  • Page 58 DFM 6.1 INSTRUCTION MANUAL 13. Click on the Transfer Button (Button with 3 arrows/Chevrons facing right). Wait until download complete dialog appears, then close out or continue with program as needed.
  • Page 59 PULSAR MEASUREMENT Device Descriptor Menu Structure Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Device Setup Process Variables PV% Range PV Loop Current Dynamic Variables Basic Setup PV Unit PV Xfer fnctn PV Damp Device Information...
  • Page 60 DFM 6.1 INSTRUCTION MANUAL Device Descriptor Menu Structure (Cont.) Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Flow Rate LSL Flow Rate USL Flow Rate Damp Velocity Sensor Velocity Velocity Unit Sensor Information Velocity Class Velocity PDQ...
  • Page 61 PULSAR MEASUREMENT Device Descriptor Menu Structure (Cont.) Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Num req preams Num resp preams Device Information Distributor Model Dev id Serial Number Relay Count Cfg chng count Long Tag...
  • Page 62 DFM 6.1 INSTRUCTION MANUAL Device Descriptor Menu Structure (Cont.) Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Descriptor Message Date Final asmbly num Universal rev Fld dev rev Software rev Hardware rev Poll addr Loop current mode...
  • Page 63 PULSAR MEASUREMENT Device Descriptor Menu Structure (Cont.) Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Logging Logger Options Log Status Log Mode Percent Log Used PV Loop Current PV LVR PV URV...
  • Page 64: Appendix A - Classified Area Installation Control Drawings

    PULSAR MEASUREMENT APPENDIX A – Classified Area Installation Control Drawings SESPEC-INST-01: SE4-A Certified CSA C/US Intrinsically Safe for Class I, Div 1, Groups C,D; Class II, Groups E,F,G; Class III...
  • Page 65 PULSAR MEASUREMENT SESPEC-INST-02: SE4-A Certified CSA C/US Non-Incendive for Class 1 Div 2, Groups A,B,C,D...
  • Page 66 DFM 6.1 INSTRUCTION MANUAL I-0043.01: SE4-A Certified ATEX/IECEx Ex ia for Zone 0, Gas group IIB...
  • Page 67: Appendix B - Specifications

    180" (12.7 mm to 4.5 m) Accuracy: ±2% of reading or 0.1 ft/sec (0.03 m/sec) whichever is greater Requires solids or bubbles Greyline DFM 6.1 minimum size of 100 microns, minimum concentration 75 ppm. C ONDUIT ENTRY Repeatability: ±0.1%, SIDE VIEW LOC ATION Linearity ±0.5%...
  • Page 68 DFM 6.1 INSTRUCTION MANUAL APPENDIX C – Conversion Table CONVERSION GUIDE FROM MULTIPLY BY US GALLONS CUBIC FEET 0.1337 US GALLONS IMPERIAL GALS 0.8327 US GALLONS LITRES 3.785 US GALLONS CUBIC METERS 0.003785 LITRES/SEC 15.85 LITRES CUBIC METERS 0.001 BARRELS...
  • Page 69: Appendix D - Pipe Charts

    PULSAR MEASUREMENT APPENDIX D – Pipe Charts Ductile Ir on Pipe - Standard Classes Size OUTSIDE Clas s Class Class C lass C lass C lass C la ss C EMEN T LIN IN G IN CH D IA. **S TD...
  • Page 70 DFM 6.1 INSTRUCTION MANUAL Stainless Steel, Hastelloy "C" & Titanium Pipe Pipe Pipe Scheule 5 S (a) Schedule 10 S (a) Schedule 40 S Schedule 80 S Size O.D. I.D. WALL I.D. WALL I.D. WALL I.D. WALL ½ .840 .710 .065...
  • Page 71 PULSAR MEASUREMENT Cast Iron Pipe - ASA Standard Pipe Pipe Class 50 Class 100 Class 150 Class 200 Class 250 Class 300 Class 350 Size O.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D.
  • Page 72 DFM 6.1 INSTRUCTION MANUAL Copper Tubing Pipe Copper & Brass Pipe Aluminum Size O.D. I.D. WALL O.D. I.D. WALL O.D. I.D. WALL O.D. I.D. WALL O.D. I.D. WALL 2" 2.125 1.959 0.083 2.125 1.985 0.070 2.125 2.009 0.058 2.375 2.062 0.157...
  • Page 73 PULSAR MEASUREMENT C900/C905 PVC AWWA Water Distribution Pipe (Blue) Pipe DR14 DR18 DR-21 DR25 Size Wall Wall Wall Wall 4.80 0.343 4.114 0.267 4.266 0.192 4.416 6.90 0.493 5.914 0.383 6.134 0.276 6.348 9.05 0.646 7.758 0.503 8.044 0.362 8.326 11.10...
  • Page 74 DFM 6.1 INSTRUCTION MANUAL www.pulsarmeasurement.com service@pulsarmeasurement.com Copyright © 2020 Pulsar Measurement Ltd.. Registered Address: 1 Chamberlain Square CS, Birmingham B3 3AX Registered No.: 3345604 England & Wales Rev 1.0...

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