Greyline Instruments DFM 5.0 Скачать руководство пользователя страница 21 | Manualshive

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FIELD TROUBLESHOOTING

Possible Causes:

Corrective Action:

METER READING LOWER THAN EXPECTED

Calibration Error

• Review

UNITS/MODE

menu and

Pipe ID

Lower flow rate than expected

• Investigate pump/valves. Compare velocity

with alternate instrument

Signal not penetrating far enough into the flow
stream

• Relocate sensor closer to elbows or flow

disturbances

Improper mounting of sensor

• Reinstall Sensor with careful application of

Coupling Compound

Pipe is not full

• Remount Sensor on vertical pipe

METER READING WHEN THERE IS NO FLOW

Vibration on pipe

• Adjust Status / Signal Cutoff setting

• 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.

Cross talk between two or more DFM 5.0
flowmeters on same pipe

• Refer to Synchronization instructions

Variable Speed Drive interference

• Follow Drive manufacturers wiring and

Grounding instructions

• Relocate Flowmeter electronics, Sensor and

wiring away from VSD

Sensor connections incorrect

• Refer to Connections diagram

Page 21

DFM 5.0 Doppler Flow Meter

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Содержание DFM 5.0

Страница 1: ...USER S GUIDE Installation Operation Instructions Doppler Flow Meter Model DFM 5 0 Manual Series A 8 1 ...

Страница 2: ...Note This page has been left blank intentionally ...

Страница 3: ...lable in Adobe Acrobat pdf format Page 3 DFM 5 0 Doppler Flow Meter INDEX Connections 4 Keypad System 6 Calibration Menu 7 Message 8 Status 8 Password 9 Units Mode 10 Calibration 11 Relay Parameters 12 Special Functions 13 Sensor Mounting 15 Enclosure Installation 19 Synchronization 20 Troubleshooting 21 Common Questions And Answers 24 Applications Hotline 26 Product Return Procedure 27 Warranty 2...

Страница 4: ...comply with CSA UL electrical safety standards AC power input and relay connection wires must have conduit entry to the instrument enclosure Installation requires a switch overcurrent fuse or circuit breaker in the building in close proximity to the equipment that is marked as the disconnect switch Risk of electric shock Loosen cover screw to access connections Only qualified personnel should acce...

Страница 5: ... DFM 5 0 Doppler Flow Meter L N HEATER OPTION AC L N RCVR GND TMTR GND SYNC NO C NC NO C NC 4 20mA 1 RLY2 RLY1 AC GROUND TRANSDUCER GND NC C NO NC C NO NC C NO NC C NO RLY3 RLY4 RLY5 RLY6 EXTRA RELAYS OPTION POWER INPUT ...

Страница 6: ...menu box Pressing a corresponding keypad arrow will move to the next item in the direction shown Move the cursor underline under numerals and increase or decrease numerals with the Ç and Èkeys To store calibration values permanently even through power interruptions press the ü DFM 5 0 Doppler Flow Meter Page 6 ...

Страница 7: ...4 hr log Date Feb 12 2008 Total 0 000ft s Average 0 000ft s Maximum 0 000ft s Max Time 01 57 00 Minimum 1 046ft s Min Time 02 35 00 Status Velocity 0 00ft s Tot 0 000USG Signal Cutoff 5 Signal Strength 0 Sig Confidence 0 Relays 1 2 3 4 5 6 20mA at Special Functions Language English Backlight On High Reset Totalizer NO Negative Totals NO Reverse Flow NO Cal Constant 1 000 Restore Defaults NO New Pa...

Страница 8: ...izer reading Signal Cutoff Adjust the setting in percent to suppress flow readings at zero flow when fluid swirling or pipe vibration may cause the instrument to continue reading Example Signal Cutoff at 5 will force the display and outputs to zero when signal strength drops below 5 Signal Strength Displays percentage of signal being received by the ultrasonic sensor Sig Confidence This indicates ...

Страница 9: ...From the Run display press the Æ key to get to Password Factory default password is 0000 and if it has not been changed press the ü to proceed to the Menu Selections screen If a password is required press Æ to place the cursor under the first digit and È or Ç to set the number then Æ to the second digit etc Press Æ or ü to proceed to the Menu Selections screen A new password can be stored by going...

Страница 10: ...our units of measurement Press the ü to store your selection Press the È key to move the symbol to each subsequent menu item and the ü to save your selections Note the volume selection bbl denotes U S oil barrel Press Å or ü to return to the Menu Selections screen Page 10 DFM 5 0 Doppler Flow Meter Units Mode Mode Flow Linear in Volume USG Time min Units Mode Mode Flow Linear i ft m mm n Units Mod...

Страница 11: ...e left at zero flow or velocity or can be raised to any value less than the 20mA setting or lowered to any velocity or corresponding flow rate down to 40 ft sec 12 2 m sec Pipe ID Place the cursor under the digits and then È or Ç to change the numbers and decimal point Pipe ID should be entered as the exact inside diameter of the pipe where the sensor is mounted Refer to the Pipe Charts Appendix i...

Страница 12: ...able flow rate and remain energized with flow below the set point When flow rises above the set point the relay will de energize Hi Alarm mode relay will energize at a programmable flow rate and remain energized with flow above the set point When flow falls below the set point the relay will de energize Pulse Press È and set digits to the flow volume increment required between relay pulses Use thi...

Страница 13: ...or mounted in a direction that shows normal flow as negative values Use Reverse Flow to change readings to positive values Cal Constant Set to 1 000 for SE4 A transducer Note Different transducer models require specific Cal Constants Restore Defaults Select Yes and press ü to erase all user settings and return the instrument to factory default settings New Password Select any number from 0000 to 9...

Страница 14: ...utput Press Æ and then È or Ç to change the simulated output Press ü to begin simulation The 4 20mA output and relay states will be displayed on the screen below Press the ü to terminate simulation and return to the Menu Selections screen Page 14 DFM 5 0 Doppler Flow Meter Simulation Output 250USG 4 20mA 5 60mA Relays 1 2 3 4 5 6 ...

Страница 15: ...ntal pipe 12 o clock position to obtain the 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 mu...

Страница 16: ...ch Greyline flow meter It includes recommended coupling compound in a plastic applicator and a stainless steel mounting bracket with adjustable pipe straps Page 16 DFM 5 0 Doppler Flow Meter PIPE Mount the PC4 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 be combi...

Страница 17: ...4 to the 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...

Страница 18: ...SENSOR MOUNTING COUPLING RECOMMENDATIONS Page 18 DFM 5 0 Doppler Flow Meter BAD GOOD ...

Страница 19: ...rough the 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 ...

Страница 20: ...To synchronize one or more DFM 5 0 flow meters use twisted shielded pair cable 22AWG or heavier Connect SYNC of one DFM 5 0 to the SYNC of the next unit And connect SYNC of one DFM 5 0 to the SYNC of the next unit etc Connect shield to Transducer GND on all units as illustrated below No changes in DFM 5 0 hardware setup or software are required The instruments manage synchronization connections au...

Страница 21: ...R READING WHEN THERE IS NO FLOW Vibration on pipe Adjust Status Signal Cutoff setting 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 Cross talk between two or more DFM 5 0 flowmeters on same...

Страница 22: ...ow Corning Silicone 4 Power interruption No flow Check fuse breaker Confirm flow METER READING TOO HIGH Calibration error Review UNITS MODE menu and Pipe ID Vibration or noise on the pipeline Install in another location Pipe is not full Remount Sensor on vertical pipe Nearby velocity increasing device pump valve orifice plate Relocate sensor 30 pipe diameters from velocity increasing device Local ...

Страница 23: ...G 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 23 DFM 5 0 Doppler Flow Meter ...

Страница 24: ... 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 Better results can be expected with bonded liners ...

Страница 25: ...uld 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 DJB BNC coaxial connectors TV cable type are not recommended for cable splices Does the DFM 5 0 require periodic recalibration No DFM 5 0 calibration does no...

Страница 26: ... or phone the Applications Hotline below United States Tel 315 788 9500 Fax 315 764 0419 Canada Tel 613 938 8956 Fax 613 938 4857 Toll Free 888 473 9546 Email info greyline com Web Site www greyline com Greyline Instruments Inc Canada USA 16456 Sixsmith Drive 105 Water Street Long Sault Ont K0C 1P0 Massena NY 13662 Page 26 DFM 5 0 Doppler Flow Meter ...

Страница 27: ... products will not be serviced and will be returned to the sender at their expense 1 Rinse sensor and cable to remove debris 2 If the sensor has been exposed to sewage immerse both sensor and cable in a solution of 1 part household bleach Javex Clorox etc to 20 parts water for 5 minutes Important do not immerse open end of sensor cable 3 Dry with paper towels and pack sensor and cable in a sealed ...

Страница 28: ...____ 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 _________________...

Страница 29: ...opy 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 of this ...

Страница 30: ...ed in conduit for mechanical protection Recommended installation with a metal junction box Option DJB is illustrated below COAXIAL CABLE PREPARATION DXC Doppler sensor cable can be cut and spliced up to a maximum length of 500 ft 152 m Cable ends must be prepared as illustrated below Page 30 DFM 5 0 Doppler Flow Meter GOOD BLACK INSULATION HAS BEEN REMOVED BAD BLACK INSULATION HAS NOT BEEN REMOVED...

Страница 31: ... CABLE JUNCTION BOX OPTION DJB Optional Watertight steel NEMA4 Junction Boxes with terminal strips are available from Greyline Instruments Page 31 DFM 5 0 Doppler Flow Meter DIMENSIONS OPTION DJB JUNCTION BOX ...

Страница 32: ... No ISB 011239 may be purchased separately The instrument enclosure containing the 2ISB Intrinsic Safety Barriers must be installed in a non hazardous location Refer to SESPEC INST 01 for complete installation instructions Page 32 DFM 5 0 Doppler Flow Meter DRAWING NO GN3SPEC INST 02 NOTE BARRIER EQUIPPED UNITS ARE FACTORY WIRED WITH GROUND THROUGH THE INSTRUMENT CHASSIS NON HAZARDOUS LOCATION HAZ...

Страница 33: ...ons when properly connected to a DFM 5 0 The DFM 5 0 instrument enclosure must be installed in a non hazardous location Page 33 DFM 5 0 Doppler Flow Meter DRAWING NO SESPEC INST 02 NON HAZARDOUS LOCATION HAZARDOUS LOCATION CLASS I DIVISION 2 GROUPS A B C D CABLE CONTAINS CWPT 13129 500 ft max Shield 2 of RG174 32pf ft 77nH ft BLK WHT DFM 5 0 SIDE VIEW RCVR GND TMTR GND SYNC TRANSDUCER GND ...

Страница 34: ...ght Overheating will reduce the life of electronic components and condensate may form during the heat cool cycles and cause electrical shorts Page 34 DFM 5 0 Doppler Flow Meter 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 aluminum sun screen Gr...

Страница 35: ...ace of the sensor Allow 15 seconds for the DFM 5 0 to process the signal and display a flow value CONNECTIONS POWER INPUT Connect 9 32VDC to the and terminals 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 Page 35 DFM 5 0 Doppler Flow Meter 9 32VDC RCVR GND TMTR GND SYNC NO C NC NO C NC 4 20mA 1 RL...

Страница 36: ...to store the setting Reset Log Select Yes to apply any changes that have been made to the logger Interval or Mode The current log file will be erased from memory and a new log file will start RETRIEVE LOG FILE Plug a USB Flash Memory Drive not supplied by Greyline into the USB output cable from the instrument The instrument display will show the message Downloading until the log file is transferre...

Страница 37: ...or that instrument are on the USB flash drive Older files can be erased or moved from the flash memory drive or a new memory drive can be used OPENING LOG FILES Install Greyline Logger on your PC or laptop Refer to the Help menu in the program for detailed instructions Select File Open Instrument Log log to open the log file from your USB flash drive Page 37 DFM 5 0 Doppler Flow Meter ...

Страница 38: ...se Enclosure watertight dust tight NEMA4X IP66 fiberglass with a clear shatter proof face Environmental Conditions Normal outdoor conditions 23 to 60 C ambient temperature maximum 5000 m altitude pollution degree 4 Installation Category II Sensitivity adjustable Damping adjustable Electrical Surge Protection Sensor 4 20mA output and AC power input Shipping Weight 14 lbs 6 3 kg SE4 Doppler Sensor M...

Страница 39: ...S 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 Note BARRELS are U S oil barrels ...

Страница 40: ...5 32 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...

Страница 41: ... 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 3 4 000 ...

Страница 42: ...11 40 0 68 10 04 12 13 20 0 54 12 12 13 20 0 62 11 96 13 50 0 68 12 14 13 50 0 75 12 00 14 15 30 0 57 14 16 15 30 0 66 13 98 15 65 0 74 14 17 15 65 0 82 14 01 16 17 40 0 60 16 20 17 40 0 70 16 00 17 80 0 80 16 20 17 80 0 89 16 02 18 19 50 0 64 18 22 19 50 0 75 18 00 19 92 0 87 18 18 19 92 0 96 18 00 20 21 60 0 67 20 26 21 60 0 80 20 00 22 06 0 92 20 22 22 06 1 03 20 00 24 25 80 0 76 24 28 25 80 0 ...

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