Related Manuals for Greyline Instruments DFM 5.0
Summary of Contents for Greyline Instruments DFM 5.0
- Page 1 USER'S GUIDE Installation & Operation Instructions Doppler Flow Meter Model DFM 5.0 Manual Series A.8.1...
- Page 2 Note: This page has been left blank intentionally.
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Page 3: Table Of Contents
DFM 5.0 Doppler Flow Meter INDEX Connections ............4 Keypad System . -
Page 4: Connections
DFM 5.0 Doppler Flow Meter CONNECTIONS: POWER INPUT: The standard model requires AC power input between 100 to 240 VAC 50/60Hz . No adjustments are necessary for voltages within this range. Optional DC input model requires 9-32 VDC/7 Watts. Connect to + and − terminals. Connect L (Live) N (Neutral) and AC Ground. - Page 5 DFM 5.0 Doppler Flow Meter CONNECTIONS – + SYNC EXTRA RELAYS OPTION RLY3 RLY4 RLY5 RLY6 POWER INPUT – 4-20mA (1) HEATER OPTION RLY2 TRANSDUCER RLY1 GROUND Page 5...
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Page 6: Keypad System
DFM 5.0 Doppler Flow Meter KEYPAD SYSTEM The following diagram shows the DFM 5.0 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. -
Page 7: Calibration Menu
DFM 5.0 Doppler Flow Meter CALIBRATION MENU Page 7... -
Page 8: Message
The main display shows the units selected from the Units/Mode menu, Flow or Velocity rate being measured, TOTALIZER and RELAY states. The DFM 5.0 will start-up with this display and will return to this screen 20130.8 USG after a timeout if keys are not pressed in other menus. -
Page 9: Password
DFM 5.0 Doppler Flow Meter 24 HR LOG (Data Logging option only) --24 hr log---------- >Date Feb. 12/2008 Total 0.000ft/s Press Å from the RUN display to view a formatted flow report from Average 0.000ft/s Maximum 0.000ft/s instruments with a built-in data logger. Press È to scroll down one day or... -
Page 10: Units/Mode
DFM 5.0 Doppler Flow Meter UNITS/MODE --Units/Mode-------- >Mode Flow Linear press the Æ and then the Ç or È to select From >Mode Flow Volume . Flow mode displays the flow rate in engineering units (e.g. Velocity Time gpm, litres/sec, etc.) Press the ü to store your selection then the È to the next menu item and Æ... -
Page 11: Calibration
DFM 5.0 Doppler Flow Meter CALIBRATION --Calibration------- >20mA at 2500.0 USG/m 4mA at 0.000 USG/m Press the È to and Æ to enter. Use È or Ç to position >Calibration Pipe ID 12.00in Damping before each menu item and Æ to enter. When settings are completed >... -
Page 12: Relay Parameters
DFM 5.0 Doppler Flow Meter RELAY PARAMETERS --Relay Parameters-- >Relay Function Flow Press Æ and È or Ç to select a corresponding relay Mode Pump Relay 1000 USG 0.000 USG number (2 relays are standard, 4 additional are optional). Press È or Ç to select... -
Page 13: Special Functions
DFM 5.0 Doppler Flow Meter DATA LOGGING (OPTIONAL) Refer to Options section of this manual. SPECIAL FUNCTIONS --Special Functions- >Language English Backlight On High Select Language English French Spanish Reset Totalizer Negative Totals Reverse Flow Cal Constant 1.000 Select for continuous... - Page 14 DFM 5.0 Doppler Flow Meter SIMULATION --Simulation-------- >Output 250USG 4-20mA 5.60mA Exercises the 4-20mA output, digital display and control relays (does not Relays 1 2 3 4 5 6 affect the totalizer or optional data logger). Press Æ and then È or Ç to change the simulated output. Press Output ü...
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Page 15: Sensor Mounting
DFM 5.0 Doppler Flow Meter SENSOR MOUNTING LOCATION The position of the sensor is one of the most important considerations for accurate Doppler flow measurement. The same location guidelines apply to Doppler as most other types of flow meters. Before permanently mounting a Doppler sensor onsite testing is recommended to determine optimum mounting position. - Page 16 DFM 5.0 Doppler Flow Meter 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 17 Warm temperatures, moisture and vibration will accelerate this process. Dow Corning Silicone Compound #4 as supplied with the DFM 5.0 (and available from Greyline Instruments) is recommended for semi-permanent installations.
- Page 18 DFM 5.0 Doppler Flow Meter SENSOR MOUNTING/COUPLING RECOMMENDATIONS GOOD Page 18...
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Page 19: Enclosure Installation
DFM 5.0 Doppler Flow Meter 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 Greyline Instruments. -
Page 20: Synchronization
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. -
Page 21: 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 5.0 • Refer to Synchronization instructions flowmeters on same pipe Variable Speed Drive interference •... - Page 22 DFM 5.0 Doppler Flow Meter Possible Causes: Corrective Action: METER READING ERRATIC Sensor mounted too close to valve, pump or • Change sensor placement. Recommended 6-10 elbow diameters from elbows, and 30 diameters from pumps, controlling valves, orifice plates, nozzles or open pipe discharge...
- Page 23 DFM 5.0 Doppler Flow Meter Possible Causes: Corrective Action: METER READING DOES NOT TRACK FLOW Sensor and GND wires reversed or not properly • Check Sensor connections connected Improper AC power input Ground • Use direct connection with 12 AWG wire to nearest Ground pole (<1 ohm resistance).
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Page 24: Common Questions And Answers
DFM 5.0 Doppler Flow Meter 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 Greyline 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 25 Does the DFM 5.0 require periodic recalibration? No. DFM 5.0 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.
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Page 26: Applications Hotline
DFM 5.0 Doppler Flow Meter APPLICATIONS HOTLINE For applications assistance, advice or information on any Greyline Instrument contact your Sales Representative, write to Greyline 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... -
Page 27: Product Return Procedure
DFM 5.0 Doppler Flow Meter PRODUCT RETURN PROCEDURE Instruments may be returned to Greyline for service or warranty repair. Obtain an RMA Number from Greyline - Before shipping a product to the factory please contact Greyline by telephone, fax or email to obtain an RMA number (Returned Merchandise Authorization). -
Page 28: Flow Meter Data Sheet
DFM 5.0 Doppler Flow Meter FLOW METER DATA SHEET Greyline Instruments Inc. Please complete and return this form to Greyline. It is important. We use this information to check our database 16456 Sixsmith Dr., Long Sault, Ont. K0C 1P0 Tel: 613-938-8956 / Fax: 613-938-4857... -
Page 29: Warranty
DFM 5.0 Doppler Flow Meter LIMITED WARRANTY _____________________ Greyline Instruments warrants, to the original purchaser, its products to be free from defects in material and workmanship for a period of one year from date of invoice. Greyline will replace or repair, free of charge, any Greyline product if it has been proven to be defective within the warranty period. -
Page 30: Appendix A - Options
DFM 5.0 Doppler Flow Meter APPENDIX A – OPTIONS EXTRA SENSOR CABLE (OPTION DXC) Each Greyline flow meter includes 20 ft / 6m (or 50 ft / 15 m optional) continuous shielded coaxial pair cable. Additional cable and Cable Junction Box (Option DJB) may be ordered with the Flow Meter, or the cable may be spliced and extended up to 500 ft (152m) as required during installation. - Page 31 DFM 5.0 Doppler Flow Meter SENSOR CABLE JUNCTION BOX (OPTION DJB) Optional Watertight steel NEMA4 Junction Boxes with terminal strips are available from Greyline Instruments. DIMENSIONS OPTION DJB - JUNCTION BOX Page 31...
- Page 32 DFM 5.0 Doppler Flow Meter SENSOR INTRINSIC SAFETY DRAWING NO: GN3SPEC-INST-02 (OPTION 2ISB) When connected through Intrinsic Safety Barriers, the Greyline Sensor Model SE4 is CSA certified for installation in a hazardous location rated: Class I, Groups C,D Class II, Groups E,F,G...
- Page 33 Class I, Division 2, Groups A,B,C&D Intrinsic Safety Barriers are not required for SE4 sensor installation in Div 2. locations when properly connected to a DFM 5.0. The DFM 5.0 instrument enclosure must be installed in a non-hazardous location. TRANSDUCER DFM 5.0...
- Page 34 DFM 5.0 Doppler Flow Meter 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).
- Page 35 DFM 5.0 Flow Meters may be ordered factory-configured for 9-32VDC power input. QUICK BENCH TEST: Connect Sensor as shown below, then Power. Test operation of the DFM 5.0 by holding the sensor in one hand and rubbing your thumb or fingers briskly across the face (plastic surface) of the sensor.
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Page 36: Data Logger
DFM 5.0 Doppler Flow Meter DATA LOGGING (Optional) --Data Logging------- >Log Site ID Setup Mode Flow Velocity Set Date Feb 18/2008 Select from Menu Selections. Mar 19/2009 Data Logging Set Time 11:27:40 12:28:41 Interval 10sec Enter a number from . The site ID will... - Page 37 DFM 5.0 Doppler Flow Meter Download letter will be for the first download from an instrument. the second, then etc. At the letter character will appear indicating that the maximum number of downloads for 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.
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Page 38: Specifications
DFM 5.0 Doppler Flow Meter SPECIFICATIONS 7.4 / 188 mm " Flow Rate Range: -40 to -0.25 ft/sec, +0.25 to 6.46 / 164 mm " 5.12 / 130 mm " +40 ft/sec (-12.2 to -0.076 m/sec, +0.076 to +12.2 m/sec,) in most applications Pipe Size: Any pipe ID from ½... -
Page 39: Appendix B - Conversion Table
DFM 5.0 Doppler Flow Meter APPENDIX B - 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... -
Page 40: Pipe Charts
DFM 5.0 Doppler Flow Meter PIPE CHARTS Carbon Steel & PVC Pipe Standard Extra Heavy Dbl. Extra Pipe Pipe Schedule 40 Schedule 80 Heavy Schedule 10 Schedule 20 Schedule 30 Schedule 40 Size O.D. I.D. WALL I.D. WALL I.D. WALL I.D. - Page 41 DFM 5.0 Doppler Flow Meter Stainless Steel, Hastelloy "C" & Titanium Pipe Pipe Pipe Schedule 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...
- Page 42 DFM 5.0 Doppler Flow Meter Cast Iron Pipe - ASA Standard Pipe Pipe Class Class Class Class Class Class Class Size O.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D. 3.96 0.32 3.32 0.32 3.32...
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