Greyline Instruments DFM-IV User Manual Download Page 21 | Manualshive

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Possible Causes:

Corrective Action:

Variable Speed Drive interference

·

Follow Drive manufacturers wiring and
Grounding instructions

·

Relocate Flowmeter electronics, Sensor and
wiring away from VSD

METER READING DOES NOT TRACK FLOW

Sensor and GND wires reversed or not properly
connected

·

Check Sensor connections

Improper AC power input Ground

·

Use direct connection with 12 AWG wire to
nearest Ground pole (<1 ohm resistance).

Page 21

DFM-IV Doppler Flow Meter

Manual Series A.6

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Summary of Contents for DFM-IV

Page 1: ...USER S GUIDE Installation Operation Instructions Doppler Flow Meter Model DFM IV Manual Series A 6 ...

Page 2: ...5 Totalizer 6 Signal Strength 6 Relay Status Display 7 Password 7 Units Mode 7 Calibration 8 4 20mA Current Loop 8 Damping 8 Relay Parameters 9 Special Functions 10 Reset Totalizer 10 Sensor Mounting 11 Enclosure Installation 15 Synchronization 16 Backflow Rejection 17 Error Warning Messages 17 Fuse Replacement 18 Troubleshooting 19 Common Questions and Answers 22 Applications Hotline 24 Product R...

Page 3: ...0 to 260 VAC 50 60Hz See OPTIONS section of this manual for connection of optional 12VDC or 24VDC power input IMPORTANT NOTE To comply with CSA NRTL electrical safety standards AC power input and relay connection wires must have conduit entry to the instrument enclosure Page 3 DFM IV Doppler Flow Meter Manual Series A 6 RCVR N O C N C N O C N C N O C N C RELAY 1 RELAY 2 RELAY 3 L N G AC RX PU GND ...

Page 4: ... FLOW CHART The following diagram shows the DFM IV Menu system Arrows show the three directions to leave a box Pressing a corresponding keypad arrow will move to the next box in the direction shown Move the cursor or underline under numerals and increase or decrease numerals with the È and Ç keys At the bottom of each Menu column is a Store Yes box To store the calibration values permanently even ...

Page 5: ...DJ 4 000 Pipe ID 1 000 ft MaxF 10 00 ft3 s 4mA 0 00 20mA 100 0 STORING CALIBRATION Damping 10 Store Yes Tot 1098 ft3 RUN Relays 1 2 3 24 HR LOG Jan 01 2000 Daily TOTAL Daily AVERAGE Daily MAX Flow MAX Flow TIME Daily MIN Flow MIN Flow TIME Dec 31 1999 255 Days no more data SSv DATA LOGGING Log Site ID 1 Session No 1 Formatted Trend RUN STOP Setup StartJan 01 2000 Start 03 02 16 I s nterval 24 Hr I...

Page 6: ...H From TOTALIZER use È key to get to SS Signal Strength Sensitivity Press Æ to position the cursor under the numeral Use Ç or È to increase or decrease signal strength Minimum setting is 1 Maximum setting is 9 Signal strength should be adjusted so that the Signal Strength Arrow meets the Ideal Marker under normal flow conditions Signal strength must pass the Minimum Marker for the flow meter to di...

Page 7: ...tory default Password is 00 A new password can be stored by going to SPECIAL FUNCTIONS and È to New Password UNITS MODE Use Æ to get to UNITS MODE then È to get to Linear Units Use Æ to move the cursor under the required units Use È to get to Volume Units and then select units of Time and Flow or Velocity Flow mode displays flow rate in engineering units e g gpm litres sec etc Velocity mode displa...

Page 8: ...izer or control relays 4 20mA CURRENT LOOP Some applications may require the 4 20mA output to be offset so that 4mA or 20mA correspond to flow rates other than Zero and Maximum 4mA at use È or Ç to set output for 4mA It is adjustable from 5 3 8mA up to 15 lower than the 20mA setting Adjustment resolution is 0 05 0 01mA 20mA at use È or Ç to set output for 20mA down to 15 greater than the 4mA setti...

Page 9: ...or totalizers Minimum time between pulses is 1 second and pulse duration is 350 milliseconds Flow press È and set digits to the required On and Off set points Use this feature for flow control and alarms Page 9 DFM IV Doppler Flow Meter Manual Series A 6 RELAY PARAMETERS RELAY PARAMETERS Pulse Flow R1 Function Off R1on 100 ft3 R1on 100 0 ft3 s R1 0 00 OFF ft3 s R2 R3 R4 R5 Store Yes STORING CALIBR...

Page 10: ...de Go È for 100 4mA ADJ 20mA ADJ Use to fine tune the 4mA and 20mA calibration of the 4 20mA output Adjustment range is 1mA to 1mA in 0 002mA steps Important The 4 20mA output will be forced to 4mA and 20mA respectively during these adjustments Master or Slave Master or Slave selection for synchronization of multiple DFM IV flow meters see Manual section SYNCHRONIZATION New Password position curso...

Page 11: ...best signal strength VELOCITY INCREASING DEVICES Generally the sensor must be mounted away from flow disturbances such as valves pumps orifice plates venturis or pipe inlets and discharges which tend to increase flow velocity Velocity increasing devices often cause cavitation or rapid release of gas bubbles and readings both up and downstream may show much higher velocity As a guideline mount the ...

Page 12: ...ine flow meter It includes recommended coupling compound in a plastic applicator and a stainless steel mounting bracket with adjustable pipe straps DFM IV Doppler Flow Meter Manual Series A 6 Page 12 PIPE Mount the PC3 pipe clamp as illustrated on pipes 0 6 15 mm OD or larger Stainless steel bands are included for mounting on pipes up to 32 81 cm OD Additional stainless steel bands by customer may...

Page 13: ... coloured face of the sensor A bead similar to toothpaste on a toothbrush is ideal Do not overtighten crush the sensor The sensor must be fixed securely to the pipe with coupling material between the sensor face and the pipe Sensor installation with excessive coupling compound can result in gaps or voids in the coupling and cause errors or loss of signal Insufficient coupling compound will create ...

Page 14: ...SENSOR MOUNTING COUPLING RECOMMENDATIONS DFM IV Doppler Flow Meter Manual Series A 6 Page 14 BAD GOOD ...

Page 15: ...e four enclosure mounting holes to secure the enclosure to the wall or mounting stand Additional conduit holes can be cut in the bottom of the enclosure when required Use a hole saw or Greenlee type hole cutter to cut the required holes DO NOT make conduit wiring entries into the top of the enclosure Note This non metallic enclosure does not automatically provide grounding between conduit connecti...

Page 16: ...DFM IV as a MASTER Go to the SPECIAL FUNCTIONS menu select Master and Store Yes 2 All other DFM IV s must be SLAVES Go to the SPECIAL FUNCTIONS menu select Slave and Store Yes 3 Connect SYNC of the Master unit to SYNC of the first Slave Connect SYNC of the first Slave to SYNC of the second Slave and so on Ensure that all units have a common Ground by wiring all GND terminals together as illustrate...

Page 17: ... tandem with a pump or control valve The external relay must be voltage free the DFM IV generates a low voltage DC current across the INPUT terminals In response to the external relay contact closure the DFM IV display and outputs will drop to zero the Totalizer will not increment and the message Backflow Rejection will be displayed Page 17 DFM IV Doppler Flow Meter Manual Series A 6 A B INPUT EXT...

Page 18: ...pipe ID a velocity greater than 0 25 ft sec 0 076 m sec or less than 40 0 ft sec 12 2 m sec Refer to Appendix B Conversion Tables to convert from volume to velocity units FUSE REPLACEMENT 1 Turn OFF power 2 Loosen 2 Phillips corner screws and remove power module from the chassis 3 Locate fuse on Power Board 4 Replace fuse with 2 Amp 250V 5 x 20mm fuse 5 Reinstall power module in the chassis POWER ...

Page 19: ...ling Compound Pipe is not full Remount Sensor on vertical pipe METER READING WHEN THERE IS NO FLOW Vibration on pipe Install in another location Local electrical noise Ensure all Flowmeter wiring is in METAL conduit and sensor shield is properly grounded Ensure correct power input Ground connection 1 ohm resistance Ensure 4 20mA Shield connected to Instrument Ground stud Reduce DFM Sensitivity set...

Page 20: ...o clock position on horizontal pipe Coupling compound washed out or sensor loose on pipe Remount sensor Use Dow Corning Silicone 4 Slave selected in SPECIAL FUNCTIONS menu with no Synchronization input from Master Select Master in SPECIAL FUNCTIONS menu Power interruption No flow Check fuse breaker Confirm flow METER READING TOO HIGH Calibration error Review UNITS MODE menu and Pipe ID Vibration o...

Page 21: ...cate Flowmeter electronics Sensor and wiring away from VSD METER READING DOES NOT TRACK FLOW Sensor and GND wires reversed or not properly connected Check Sensor connections Improper AC power input Ground Use direct connection with 12 AWG wire to nearest Ground pole 1 ohm resistance Page 21 DFM IV Doppler Flow Meter Manual Series A 6 ...

Page 22: ...g a Doppler sensor Severe corrosion oxidation on the inside of the pipe may prevent the Doppler signal from penetrating into the flow If the pipe cannot be cleaned a spool piece PVC recommended should be installed for sensor mounting What effect do pipe liners have on the flow meter The air gap between loose insertion liners and the pipe wall prevent the Doppler signal from entering the flow Bette...

Page 23: ...s of signal strength Extended cable Greyline Option XC should be installed in rigid or flexible conduit for mechanical protection Use only Greyline shielded coaxial pair RG174U cable Cable junctions should be made through a terminal block and housed in a watertight metal junction box Greyline Option JB BNC coaxial connectors TV cable type are not recommended for cable splices Does the DFM IV requi...

Page 24: ...ping a product to the factory please contact Greyline by telephone or Fax to obtain an RMA number Returned Merchandise Authorization This ensures fast service and correct billing or credit When you contact Greyline please have the following information available 1 Model number Software Version 2 Serial number 3 Date of Purchase 4 Reason for return description of fault or modification required 5 Yo...

Page 25: ...______________ Type of Pump _________________________ Distance from nearest Pump Controlling Valve Orifice or open Discharge ___________________ Model Type _________________________ Power Input _________________________ Calibrated Range ___________________________ Indication _________________________ Operating Temp ___________________________ Alarm _________________________ Enclosure Class _______...

Page 26: ... with a copy of your invoice This warranty does not cover damages due to improper installation or handling acts of nature or unauthorized service Modifications to or tampering with any part shall void this warranty This warranty does not cover any equipment used in connection with the product or consequential damages due to a defect in the product All implied warranties are limited to the duration...

Page 27: ...lation No adjustment is required when the sensor cable is extended or shortened Use only Greyline shielded coaxial pair RG174U cable Extended sensor cable should be installed in conduit for mechanical protection Recommended installation with a metal junction box Option DJB is illustrated below SENSOR CABLE JUNCTION BOX OPTION DJB Optional Watertight steel NEMA4 Junction Boxes with terminal strips ...

Page 28: ... be located in the hazardous rated area Intrinsic Safety Barrier Specifications Certified rated 9 3V max 25 ohms min Recommended Stahl Model 9001 02 093 390 10 DFM IV Doppler Flow Meter Manual Series A 6 Page 28 RCVR N O C N C N O C N C N O C N C RELAY 1 RELAY 2 RELAY 3 L N G AC RX PU GND TX RS 232 N O C N C N O C N C A B RELAY 4 RELAY 5 INPUT TMTR SYNC 4 20 OPTIONAL VOLTAGE FREE DRY CONTACTS BY C...

Page 29: ...of electronic components and condensate may form during the heat cool cycles and cause electrical shorts Page 29 DFM IV Doppler Flow Meter Manual Series A 6 FACTORY CONNECTED TO AC POWER SUPPLY Note Exposure to direct sunlight can cause overheating and moisture condensation which will reduce the operating life of electronics Protect Instruments from direct sunlight with this iridite finished alumi...

Page 30: ...or the DFM IV to process the signal and display a flow value CONNECTIONS POWER INPUT Connect only 12VDC 0 54 Amps to the and terminals for units marked 12V or 24VDC 0 27 Amps for units marked 24VDC The Power Input GND terminal must be connected to the nearest Ground pole A 1 amp fuse in line is recommended Power Consumption is 6 5 W continuous DFM IV Doppler Flow Meter Manual Series A 6 Page 30 GN...

Page 31: ... TEMPERATURE SENSOR OPTION SE3H Mount with coupling compound and stainless steel pipe clamp supplied Protect Sensor cable from contact with hot pipes SE3H Specifications Operating Temperature 40 to 302 F 40 to 150 C Minimum Pipe Diameter 0 5 12 5 mm ID 0 6 15 mm OD Maximum Pipe Diameter 180 4 5 m O D Operating Frequency 640 KHz Exposed Materials stainless steel with epoxy face Sensor Cable 20 ft 6...

Page 32: ... 2000 Start 03 02 16 I s nterval 24 Hr Interval 12 Hrs I s nterval 1 Hr Time Event HiAlm LoAlm At 5 0 ft3 s StartJan 01 2000 Start 03 02 16 Interval 8 Hrs Interval 4 Hrs Interval 30 Sec Interval 10 Sec Interval 5 Sec Interval 2 Sec Interval 1 Sec Interval 30 Min Interval 10 Min Interval 5 Min Interval 2 Min Interval 1 Min STORING Reset Log Yes 26640 Hrs Left Store Yes WrapAround Yes ...

Page 33: ...ear that logging will Start Press Æ to return to Start Press È to Start time and Æ to position the cursor under the time column HH MM SS 24 hour clock in Hours minutes seconds eg 23 02 16 and then È or Ç to set the logging start Time Press Æ to return to Start Press È to Interval and Æ to the Hrs column Press È or Ç to select the flow logging interval Choose from 24 Hrs or 12 Hrs or 8 Hrs or 4 Hrs...

Page 34: ...ly if 24 Hour Formatted logging has been Stored from the DATA LOGGING menu The 24 Hour Log Report is designed to be read one line at time using the Æ key Using the È or Ç keys will return the display to the Date column TODAYS DATE DAILY TOTAL DAILY AVERAGE MAX FLOW MAX FLOW TIME MIN FLOW MIN FLOW TIME PREVIOUS DATE PREVIOUS DATE PREVIOUS DATE PREVIOUS DATE PREVIOUS DATE The current day plus the pa...

Page 35: ...session The DFM IV will display xxxxx Hrs Days Left From the xxxxx Hrs Left display press È to Store Yes Press Æ to Yes and then È to save your Data Logging setup or press È from Store to cancel changes made above and exit without storing changes From the Data Logging Store Yes prompt the menu will return to RUN STOP SETUP Press Æ to position the cursor under RUN and press È to activate the Data L...

Page 36: ... Yes prompt the menu will return to RUN STOP SETUP Press Æ to position the cursor under RUN and press È to activate the Data Logger to start The DFM IV will display SESSION NO x Press È to return to DATA LOGGING Logging Sessions Each time you select STOP in the DATA LOGGING menu the Data Logger stores the current data in memory as a SESSION NO automatically numbered from 1 to 10 If you resume logg...

Page 37: ...cable and optional Null Modem NM DB9M DB25M for connection to a modem Page 37 DFM IV Doppler Flow Meter Manual Series A 6 Greyline Instrument RS232 20 6 m cable included Detail INCLUDED RX RS 232 PU GND TX GREEN WHT BLK RED Wired as DCE Data Communication Equipment PIN 2 RX PIN 3 TX PIN 5 GND SHIELD CASE PU PULL UP PIN 6 DSR PU PIN 8 CTS PU 5 4 3 2 1 9 8 7 6 Detail DB9F DB25F Modem Modem Computer ...

Page 38: ...Communications Connection Setup menu select Connected to a Greyline 485OI 12V adaptor 4850I9TB 12V RS232 RS485 Converter Use with optional RS485 output for connection to a PC computer or modem Optically isolates and protects your computer s RS232 port Terminal block for RS485 connections Operates from 2400 up to19 2K baud DB9M DB9F RS232 Cable Connects RS232 485 Converter to a PC Cable length 6 ft...

Page 39: ...ection forces display and outputs to zero with contact closure from remote relay Enclosure watertight dust tight NEMA4X IP66 fiberglass with a clear shatter proof face Electronics Operating Temp 10 to 140 F 23 to 60 C Sensitivity adjustable Damping adjustable Electrical Surge Protection Sensor 4 20mA output and AC power input SE3 Doppler Sensor Minimum Pipe Diameter 0 5 12 5 mm ID 0 6 15 mm OD Max...

Page 40: ...BIC FEET 0 1337 US GALLONS IMPERIAL GALS 0 8327 US GALLONS LITRES 3 785 US GALLONS CUBIC METERS 0 003785 LITRES SEC GPM 15 85 LITRES CUBIC METERS 0 001 BARRELS US GALLONS 42 BARRELS IMPERIAL GALS 34 9726 BARRELS LITRES 158 9886 INCHES MM 25 4 DEGREES F DEGREES C F 32 x 0 556 POUNDS KILOGRAMS 0 453 PSI BAR 0 0676 FOOT METER 0 0929 ...

Page 41: ...2 32 000 31 250 375 31 000 500 31 376 312 31 000 500 30 750 625 34 34 000 33 250 375 33 000 500 33 376 312 33 000 500 32 750 625 36 36 000 35 250 375 35 000 500 35 376 312 35 000 500 34 750 625 42 42 000 41 250 375 41 000 500 41 000 500 40 750 625 Ductile Iron Pipe Standard Classes Size OUTSIDE Class Class Class Class Class Class Class CEMENT LINING INCH DIA 50 51 52 53 54 55 56 STD DOUBLE INCH WA...

Page 42: ...8 21 564 218 24 24 000 23 563 218 23 500 250 Pipe Pipe Schedule 60 Schedule 80 Schedule 100 Schedule 120 Schedule 140 Schedule 160 Size O D I D WALL I D WALL I D WALL I D WALL I D WALL I D WALL 840 546 147 466 187 1 050 742 154 614 218 1 1 315 957 179 815 250 1 1 660 1 278 191 1 160 250 1 1 900 1 500 200 1 338 281 2 2 375 1 939 218 1 689 343 2 2 875 2 323 276 2 125 375 3 3 500 2 900 300 2 624 438 ...

Page 43: ...D WALL I D O D WALL I D O D WALL I D 6 7 22 0 58 6 06 7 22 0 61 6 00 7 38 0 65 6 08 7 38 0 69 6 00 8 9 42 0 66 8 10 9 42 0 71 8 00 9 60 0 75 8 10 9 60 0 80 8 00 10 11 60 0 74 10 12 11 60 0 80 10 00 11 84 0 86 10 12 11 84 0 92 10 00 12 13 78 0 82 12 14 13 78 0 89 12 00 14 08 0 97 12 14 14 08 1 04 12 00 14 15 98 0 90 14 18 15 98 0 99 14 00 16 32 1 07 14 18 16 32 1 16 14 00 16 18 16 0 98 16 20 18 16 ...

Page 44: ...1 2 3 24 HR LOG Jan 01 2000 Daily TOTAL Daily AVERAGE Daily MAX Flow MAX Flow TIME Daily MIN Flow MIN Flow TIME Dec 31 1999 255 Days no more data 4mA ADJ 4 000 Simul 0 00 20mA ADJ 20 000 Master Slave New Password 00 Com 24 48 9 192 6 Store Yes STORING R1 Function Off SSv DATA LOGGING Log Site ID 1 Session No 1 Formatted Trend RUN STOP Setup StartJan 01 2000 Start 03 02 16 I s nterval 24 Hr Interva...

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