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Summary of Contents for Greyline Instruments AVFM-II
- Page 1 USER’S GUIDE Installation & Operation Instructions Area-Velocity Flow Meter Model AVFM-II Manual Series A.10...
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Page 3: Table Of Contents
AVFM-II Area-Velocity Flow Meter Manual Series A.10 INDEX Function Test · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 4 Connections ·... -
Page 4: Function Test
Manual Series A.10 INTRODUCTION: The Greyline AVFM-II Area Velocity Flow Meter measures open channel flow in pipes and other channels. Flow calculation is based on the formula: Q = V x A. Q is flow, V is velocity, and A is the cross-sectional area of flow volume in the pipe or channel. -
Page 5: Keypad System
MENU - FLOW CHART The following diagram shows part of the AVFM-II 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. -
Page 7: Run
AVFM-II Area-Velocity Flow Meter Manual Series A.10 PASSWORD: 00 UNITS/MODE A scrolling display shows the units selected from the Level Level: 0.000 ft column, the maximum value in the mode being displayed ( Flow Velocity ), the Totalizer value, and the logging status if Velocity:0.00ft/s... -
Page 8: Totalizer
AVFM-II Area-Velocity Flow Meter Manual Series A.10 TOTALIZER Tot: From keys to display value. The Totalizer value is updated every 2 seconds with flow volume > 1 litre (0.264 USG). The display will show up to 10 digits and then restart at 0 automatically. -
Page 9: Units / Mode
Level Flow Velocity > Range. Press to select the operating mode of the AVFM-II. Level mode measures water level above the calibrated zero level. Flow mode is for open channel flow in pipes or rectangular channels. Displays flow in engineering units. - Page 10 AVFM-II Area-Velocity Flow Meter Manual Series A.10 CHANNEL SETUP UNITS/MODE CHANNEL SETUP CALIBRATION Round Trapezd Square Height Width Chan ID Width Slope Store? CHANNEL SETUP Round Egg Trapezd Square From press Round Round Chan ID Select for open pipes. Press to edit the channel/pipe inside diameter.
- Page 11 AVFM-II Area-Velocity Flow Meter Manual Series A.10 Trapezoid Trapezd Width Select for trapezoidal shaped channels. Press and enter Slope enter TRAPEZOIDAL RISE CHANNEL WIDTH SLOPE = RISE e.g.#1 WIDTH 24" e.g.#2 WIDTH 10" 0.35 m RISE 12" RISE 0.5 m...
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Page 12: Calibration - For Open Channel Flow
AVFM-II Area-Velocity Flow Meter Manual Series A.10 CALIBRATION CHANNEL SETUP CALIBRATION RELAY PARAMETERS MaxF 10.000 ft3/s MaxV 10.00 ft/s LvlOFFSET 0.000ft MinLvl 0.125 ft MaxLvl 3.000 ft MinRg 1.333 ft MaxRg 32.00 ft Damping Store? CALIBRATION MaxF From press . Enter the maximum expected flow in your application. If the maximum expected flow is unknown, enter an estimated value. - Page 13 . Default setting is 2% to allow quick set-up of the instrument. 20% should be ideal for most applications. Increased damping (up to 99%) slows the AVFM-II's response to turbulence and will smooth the display and outputs under turbulent conditions. Decrease damping to minimize response time for fast level or velocity changes.
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Page 14: Relay Parameters
AVFM-II Area-Velocity Flow Meter Manual Series A.10 RELAY PARAMETERS R Function Pulse Each relay can be individually calibrated. Press to select: Flow Velocity Level CALIBRATION RELAY PARAMETERS SPECIAL FUNCTION R1 Function Off Pulse Flow Velocity Level R1on 0.00 ft3 R1 on 0.00 ft3/s R1 on 0.00 ft... -
Page 15: Special Functions
AVFM-II Area-Velocity Flow Meter Manual Series A.10 SPECIAL FUNCTIONS SPECIAL FUNCTION AVFMII V 2.86 View Codes? 1234567890123456 Date May 31/1999 Time 23:39:51 LOE Time 30 s Cal Const 1.000 Reset Tot? Temp 20.3 C º Min Temp 20.0 C º... - Page 16 Press to change the number of seconds without receiving level ECHO LOSS signal echo before the AVFM-II displays , and Control relays change state as calibrated under Relay Parameters. Factory default is 30 seconds and is recommended for most applications, Minimum is 10 seconds and maximum is 60 seconds.
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Page 17: Sensor Location
2. For best results flow should be evenly distributed across the channel and relatively free of turbulence. (The AVFM-II is very effective at averaging level and velocity readings in turbulent conditions, but best accuracy and response time is achieved with evenly distributed flow.) 3. - Page 18 AVFM-II Area-Velocity Flow Meter Manual Series A.10 GOOD END VIEW SENSOR SENSOR FLOW FLOW SENSOR SENSOR SENSOR SENSOR END VIEW END VIEW Page 18...
- Page 19 AVFM-II Area-Velocity Flow Meter Manual Series A.10 OPTIONAL PIPE BAND MOUNTING WITH QZ02L SENSOR Install the stainless steel pipe band with the sensor mounting bracket at the invert (bottom) of the pipe. Ensure that the sensor bracket is parallel to the water surface (check with a level).
- Page 20 AVFM-II Area-Velocity Flow Meter Manual Series A.10 OPTIONAL PZ12-LP LEVEL SENSOR MOUNTING Mount the PZ12-LP non-contacting ultrasonic level sensor in an unobstructed position at least 8” (203.2 mm) above the high water level. Install the stainless steel mounting bracket in a horizontal position (check with a level) and then insert the PZ12-LP sensor.
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Page 21: Enclosure Installation
Locate the enclosure within 500 ft (150 m) of the sensor. It can be wall mounted with four mounting screws (supplied) or panel mounted with Option PM Panel Mounting Kit from Greyline Instruments. Avoid mounting the enclosure in direct sunlight to protect the electronics from damage due to overheating and condensate. - Page 22 SPECIAL No level echoes received within the setting. (See FUNCTION Level menu.) In mode the AVFM-II will hold the display FLOW and outputs at the last reading until a new echo is received. In mode 0.00 it will display and totalization will stop until an echo is received.
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Page 23: Field Troubleshooting
AVFM-II Area-Velocity Flow Meter Manual Series A.10 FIELD TROUBLESHOOTING The AVFM-II uses an ultrasonic level sensor to determine channel AREA and an ultrasonic Doppler sensor to measure flow VELOCITY. The QZ02L transducer combines both sensors in one housing. An optional configuration uses the PZ12-LP “down-looking” level sensor and a QZ02L-DP velocity sensor. -
Page 24: Sensor Cleaning Instructions
REMOVE SENSOR CLEANING INSTRUCTIONS BEFORE HANDLING AVFM-II sensors that have been immersed in sewage should be cleaned before handling. 1. Rinse sensor and cable to remove debris. 2. Immerse sensor and cable in a solution of 1 part household bleach (Javex, Clorox etc.) to 20 parts water for 5 minutes. -
Page 25: Applications Hotline
AVFM-II Area-Velocity Flow Meter Manual Series A.10 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... -
Page 26: Product Return Procedure
AVFM-II Area-Velocity Flow Meter Manual Series A.10 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 27: Warranty
Manual Series A.10 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 28: Appendix A - Options
EXTRA SENSOR CABLE (OPTION VXC) Each Greyline AVFM-II flow meter includes 25 ft. (7.6 m), 50 ft. (15 m) or 100 ft. (30 m) tri-coaxial sensor cable. This cable is shielded from electrical interference and is watertight with a polyurethane jacket. - Page 29 AVFM-II Area-Velocity Flow Meter Manual Series A.10 SENSOR CABLE JUNCTION BOX (OPTION VJB) Optional Watertight steel NEMA4 (IP55) Junction Boxes with terminal strips are available from Greyline Instruments. DIMENSIONS OPTION VJB - JUNCTION BOX Page 29...
- Page 30 AVFM-II Area-Velocity Flow Meter Manual Series A.10 SS PIPE MOUNTING BAND - OPTION VSJ Use optional VSJ stainless steel Pipe Mounting Bands for easy Sensor installation in round pipes. Each Pipe Band includes: Band Adjustment Jack allowing ±0.5” (13 mm) adjustment from...
- Page 31 AVFM-II Area-Velocity Flow Meter Manual Series A.10 SENSOR INTRINSIC SAFETY - OPTION ISB SENSOR MODELS QZ02L/QZ02L-DP/PZ12-LP (with built-in temperature compensation) When connected through an Intrinsic Safety Barrier, the Greyline QZ02L, QZ02L-DP and PZ12-LP sensors are CSA certified for installation in a hazardous location rated:...
- Page 32 AVFM-II Area-Velocity Flow Meter Manual Series A.10 ENCLOSURE HEATER AND THERMOSTAT - Option TH Instruments can be factory-equipped with an Enclosure Heater and Thermostat. 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 33 AVFM-II Area-Velocity Flow Meter Manual Series A.10 POWER INPUT OPTION 9-36VDC AVFM-II Level & Flow Monitors may be ordered factory-configured for 9-36VDC power input. FUNCTION TEST: Connect the sensor to the terminals as shown below, then apply power. TDCR Level A.
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Page 34: Data Logger
AVFM-II Area-Velocity Flow Meter Manual Series A.10 DATA LOGGER MENU (Optional) PASSWORD: 00 UNITS / MODE DATA LOGGING STOP Setup Session No Log Site ID Formtd Trend LVT StartJan 01/2000 Time Event StartJan 01/2000 HiAlm LoAlm Start 03:02:16 Interval: 24 Hrs... - Page 35 AVFM-II Area-Velocity Flow Meter Manual Series A.10 DATA LOGGING (Optional) Setup PASSWORD: 00 DATA LOGGING UNITS / MODE STOP Setup Log Site ID Formtd Trend LVT RUN STOP SETUP SETUP Log Site ID 0 From press and then . Press...
- Page 36 . Press to return to DATA LOGGING Viewing FORMATTED Data Logs on the AVFM-II Display 24 Hour Formatted logs can be viewed directly on the AVFM-II display regardless of the logging mode 24 HR LOG selected. From press The 24 Hour Log Report is designed to be read one line at time using the key.
- Page 37 AVFM-II Area-Velocity Flow Meter Manual Series A.10 LVT Data Logging - Setup Log Site ID Press from and press from Level-Velocity-Temperature "LVT" mode stores separate level, velocity and temperature readings over a user - selectable time period. LVT data log files can be converted to flow using Greyline Logger software.
- Page 38 Data Logger to start at your selected start DATA LOGGING Date and Time. The AVFM-II will display . Press to return to SESSION NO. x ‘Event’ based Trend and LVT Logging Event based logging stores data points only when a High or Low set point has been reached.
- Page 39 From the Data Logging prompt the menu will return to . Press position the cursor under and press to ac ti vate the Data Log ger to start. The AVFM-II will SESSION NO. x DATA LOGGING dis play . Press to re turn to Note: Greyline Logger software cannot accurately calculate totals from 'event' based log files.
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Page 40: Rs232C Serial Output
AVFM-II Area-Velocity Flow Meter Manual Series A.10 RS232C SERIAL OUTPUT (with optional Data Logger) SPECIAL FUNCTIONS Format: 8 Bits, 1 Stop Bit, No Parity. (Baud rate may be changed under the menu. Factory default is 19200 baud). Output Connector is DB9-Female. Use the cable supplied for connection to a PC Computer. Use the cable and optional Null Modem NM-DB9M/DB25M for connection to a modem. - Page 41 AVFM-II Area-Velocity Flow Meter Manual Series A.10 ENCLOSURE SUNSCREEN - OPTION SCR Do not mount instrument electronics in direct sunlight. Overheating will reduce the life of electronic components and condensate may form during the heat/cool cycles and cause electrical shorts.
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Page 42: Conversion Guide
AVFM-II Area-Velocity Flow Meter Manual Series A.10 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 US GALLONS... -
Page 43: Specifications
AVFM-II Area-Velocity Flow Meter Manual Series A.10 SPECIFICATIONS 7.40" / 188mm Electronics Enclosure: NEMA4X (IP 66), watertight 6.46" / 164mm 5.12" / 130mm and dust tight, fiberglass with clear, shatterproof hinged Lexan cover Accuracy: Level: ± 0.25% of Range Velocity: ± 2% of Reading Repeatability: 0.1% F.S.,... - Page 44 AVFM-II Area-Velocity Flow Meter Manual Series A.10 Optional (Velocity only) Sensor QZ02L-DP Minimum Velocity: 0.1 ft/sec (0.03 m/sec) Maximum Velocity: 20 ft/sec (12.2 m/sec) Operating Temperature: 5 to 150°F (-15 to 65°C) Exposed Materials: PVC, epoxy resin, polyurethane, ultem Sensor Cable: 25 ft (7.6 m) submersible polyurethane jacket, shielded, 3-coaxial...
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