Area-Velocity Flow Meterfor Open Channels and Pipes - No Flume or Weir Required

Area-VelocityFlow Meter

Model AVFM 5.0

Display, Transmitand Totalize Flow

in Open Channels and Pipes

Simple 5-key Calibration

Three 4-20mA Outputs

Two Control Relays

Measures Reverse Flow

Works in Irregular Channel Shapes

Area-Velocity Flow Meter

Submersible Ultrasonic Sensor

Monitor flow through open channels, partially full sewer pipes andsurcharged pipes a flume or weir. Ideal for municipalstormwater, combined effluent, raw sewage and irrigation water.

The AVFM 5.0 uses a submerged ultrasonic sensor to continuouslymeasure both Velocity and Level in the channel. The sensorresists fouling, corrosion and abrasion. The flowmeter can beconfigured with the standard submerged velocity-level sensor, orwith submerged velocity plus a separate non-contacting ultrasoniclevel sensor.

View flowrate and total flow on the large backlit LCD display andconnect to external devices with three 4-20mA outputs and twocontrol relays.

without

Measures Velocity + Levelwith an Ultrasonic Sensor

to Monitor Flow

New!

Easy to Use

Recommended Pipe or Channel Conditions

Alternate Sensor Configurations

Custom Channel Shapes

Optional 2-Million Point Data Logger

The AVFM 5.0 Area-Velocity FlowMeter measures both Level andVelocity to calculate flow in an openchannel or pipe. Calibration is simple:enter the pipe diameter or channeldimensions and the AVFM 5.0automatically computes and displaysflow volume.

The ultrasonic sensor mounts inside the pipe or on the bottom of a channel with a stainless steel mountingbracket (included) and a single screw into the bottom of the pipe or channel. No special compounds, tools orhardware are required. The sensor is completely sealed with orifices or ports.no

The standard sensor measures both velocity and level with a singlesubmerged probe. It is installed in the pipe or channel floor with thestainless steel mounting bracket (supplied), or mounted with anoptional stainless steel band for round pipes. Alternate sensor modelsare available for special applications: a separate non-contactingultrasonic level sensor with a submerged velocity sensor. Sensorcable can be extended up to 500 ft (150 m).

Careful selection of sensor mounting location results in best performance and maintenance-free operation.

The channel should not have drops or direction changes immediately upstream of the sensor mounting location.Pipe or channel slope should not exceed 3%.

Choose the built-in data logger option if you want the AVFM 5.0 to store time and date-stamped flow values at 10 second to 60 minute intervals.

Transfer log files to any USB flash drive just by connectingto the logger's USB output. Windows software is included to display log files in graph andtable formats, change measurement units and generate flow reports. Export data to

Excel.

Avoid locationswhere sediment builds up.

will result when the water is not highly turbulent and where velocity is evenly distributed across thechannel.

The AVFM 5.0 can measure forward flow velocity up to 20 ft/sec (6 m/sec) and reverse flow up to 5 ft/sec (1.5 m/sec). Theelectronics and software sample and average flow rates continuously to provide stable readings. The submergedvelocity/level sensor will measure flow in partially full and surcharged pipes with pressure up to 10 psi. No special set-upor adjustment is required. Minimum recommended pipe diameter is 6” (150 mm).

Calibrate the AVFM 5.0 for installation in irregular or compound channel shapesby entering the channel width at multiple level points through a .Channels of virtually any shape can be monitored with your choice ofmeasurement units.

Best possible accuracy

simple menu

Daily flow reports areautomatically created where total, minimum, maximum and average flow rates aredisplayed on the LCD display.

tographic or text file formats, or directly to Microsoft

Ultrasonic Flow Monitor forPartially Filled Pipes & Open Channels

LEVELLOW PROFILENON-CONTACTING

ULTRASONICSENSOR

FLOW

VELOCITY

Submerged SensorMeasures Level And Velocity

AVFM 5.0 Specifications

Dimensions

ENCLOSURE

7.4 / 188 mm"

6.46 / 164 mm"

10.9

4"

/ 2

78

mm

10/

25

4 m

m"

CONDUIT ENTRY

LOCATION

SIDE VIEW

5.12 / 130 mm"

AVFM 5.0Area-VelocityFlow Meter

General Specifications

QZ02L Sensor

Options

Channel Types:

Electronics Enclosure:

Accuracy:

Display:

Programming:

Power Input:

Outputs:

Control Relays:

Electrical Surge Protection:

Operating Temp. (electronics):

Velocity Measurement Range:

Level Measurement Range:

Operating Temperature:

Exposed Materials:

Sensor Cable:

Sensor Mounting:

Temperature Compensation:

Data Logging:

Sensor Cable:

Sensor Cable Junction Box:

Power Input:

Enclosure Heater:

Intrinsic Safety Barriers:

Sensors:

Sensor Mounting Bands:

Approximate Shipping Weight:

Greyline AVFM 5.0 Area-Velocity Flow Monitor

Round pipe, Rectangular, trapezoid, egg or custom shapes

Watertight and dust tight NEMA4X (IP 66) polycarbonate with clear, shatterproof cover

Level: ±0.25% of Range. Velocity: ±2% of Reading. Repeatability and Linearity: ±0.1%

White, backlit matrix - displays flow rate, totalizer, relay states, operating mode and

calibration menu

100-240VAC 50-60Hz (see Options), 5.28 Watts maximum (with standard features)

3 Isolated 4-20mA, 1000 ohm, (Flow, Level and Velocity) or 0-5VDC by menu selection

form 'C' dry contacts rated 5 amp SPDT; programmable for flow proportional

pulse (sampler/totalizer), flow and/or level alarm

Sensor, 4-20mA outputs and AC power input

-5° to 140°F (-20° to 60°C)

10 lbs. (4.5 kg)

built-in 5-key calibrator with English, French or Spanish language selection

2 Relays,

0.1 to 20 ft/sec (0.03 to 6.2 m/sec) and reverse flow to -5 ft/sec (-1.5 m/sec)

Minimum Head: 1 in (25.4 mm). Maximum Head: 15 ft. (4.57 m)

5 to 150°F (-15 to 65°C)

PVC, epoxy resin, polyurethane

25 ft. (7.6 m) submersible polyurethane jacket, shielded, 3-coaxial

includes MB-QZ stainless steel mounting bracket

Automatic, continuous

Programmable 2-million point data capacity, time and date stamped plus formatted flow

reports including Total, Average, Minimum, Maximum and times of occurrence. Includes

USB output to Flash Drives and Windows software

50 ft. (15 m) or 100 ft. (30 m) submersible, continuous from Sensor - or splice up to total

of 500 ft (150 m) length

Watertight NEMA4 steel with connection terminal strip

9-32VDC (2.5 W min., 6.5 W max.)

Thermostatically controlled - recommended for temperatures below 32°F (0°C)

For Sensor mounting in Class I,II,III, Div. I,II, Groups C,D,E,F,G hazardous locations

Separate non-contacting ultrasonic level sensor and submerged velocity sensor

Stainless steel sensor mounting bands for pipes 6” to 72” (150 to 1800 mm) diameter

QZ02L VELOCITY/LEVEL SENSOR

25 ft (7.6 m)Sensor Cable

5.00”127 mm

1.5038.1 mm

"

0.63"16 mm

SIDE VIEW

0.5

0"

12

.7 m

m

Contact a Greyline sales representative in your area or phone one of our salesengineers. Describe your requirements and receive our prompt quotation.

Take advantage of Greyline's applications experience. Phone 1-888-473-9546 foradvice and information on applications, installation or service for Greyline instruments.

The Greyline AVFM 5.0 Area-Velocity Flow Meter must meet your requirements.Discuss your application with a Greyline representative to arrange a 30-day trial.

Quality of Materials and Workmanship - Each instrument manufactured by Greyline iswarranted against defects in materials and workmanship for a period of one year fromdate of purchase. Refer to our limited warranty included with each product.

How to Order

Applications Support

No Risk Appraisal

The Greyline Guarantee

AVFM 5.0 Area-Velocity Flow Meter

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Measure flow in pipes and open channels ofany shape

Ideal where flumes or weirs are difficult toinstall

Works with water level from 1" (25.4 mm) to15 ft (4.5 m)

Auto-detects field installation of options includingdata logger and control relays

The AVFM 5.0 Area-Velocity Flow Meter includes a submerged ultrasonicsensor that is installed at the bottom of an open pipe or channel. Exposedmaterials are plastic so the sensor resists fouling and corrosion. It has nomoving parts and no orifices, ports or electrodes.

The AVFM 5.0 displays and totalizes flow. It includes three 4-20mA outputs(Flow, Level and Velocity), plus two control relays for level alarms or flowproportionate pulse output for samplers and chlorinators. It is easy tocalibrate with the built-in keypad and menu system. A built-in 2-million pointdata logger with USB output is optional. Intrinsic Safety Barriers for sensorand cable installation in hazardous rated channels is also optional.

New Open Channel Flow MonitorMeasures Velocity + Level to calculate Flow

Recommended for:

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Sewer Flow Monitoringand Reporting

Industrial Effluent

Stormwater Monitoring

Natural Streams

Irrigation Water

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Engineering SpecificationsArea-Velocity Flow Meter

Greyline AVFM 5.0

AREA-VELOCITY FLOW MONITOR SPECIFICATIONS

SCOPE: This specification covers an ultrasonic, area-velocity flow monitor as manufactured by Greyline Instruments, Massena, New York / Long Sault, Ontario. The instrument shall provide for indicating, transmitting, totalizing of the flow rate through partially filled or surcharged round pipes and rectangular, trapezoidal, egg or irregular shaped open channels.

A. GENERAL

1. Flow Monitor to consist of a submersible ultrasonic sensor, connecting cable, and remote enclosure with indicating, transmitting and controlling electronics. System shall have no moving parts.

2. Level measurement accuracy shall be ±0.25% of Range. Velocity measurement accuracy shall be ±2% of reading.

B. SENSING ELEMENT

1. Ultrasonic sensor shall be designed for continuous submersion in liquids. 2. Using the Doppler principle, the sensor shall measure fluid velocities from 0.1 to 20 ft/sec (0.03 to 6.2

m/sec) and reverse flow to -5 ft/sec (-1.5 m/sec). 3. Using ultrasonic echo-ranging principle, the submerged sensor shall measure liquid level from 1" to 15

ft. (25.4 mm to 4.57 m). Minimum level shall not be greater than 1" (25.4 mm). Level sensing circuitry shall include a temperature sensor for automatic temperature compensation.

4. Sensor shall be constructed of PVC and epoxy resin. 5. Sensor operating temperature shall be 5°F to 150°F (-15°C to 65°C). 6. Shall include manufacturer's recommended stainless steel sensor mounting bracket.

C. SENSOR CONNECTING CABLE

1. Provide minimum length 25 ft (7.6 m) tri-coaxial cable with potted bond to the Sensor head. Sensor cable shall be waterproof and electrically shielded. Exposed material shall be polyurethane only.

2. Extended sensor cable shall be shielded tri-coaxial to a maximum length of 500 ft (152m). Cable shall be spliced with screw terminal connections in manufacturer’s recommended steel NEMA4 Junction Box.

D. TRANSMITTER

1. The transmitter shall provide for field calibration to round pipes and open channels of any shape. 2. Calibration shall be via built-in 5-key calibration system with menu selection of parameters. Systems

requiring calibration by Parameter codes, BCD switches or external calibrators shall not be accepted. 3. Calibration data shall be password protected and permanently stored through power interruptions for a

minimum of 12 months. 4. Field calibration shall allow selection and automatic conversion of measurement units, measurement

span, high/low flow alarm relay and flow proportional relay pulse rates. 5. Transmitter shall permit field programmable damping to smooth output in turbulent flow conditions. 6. Transmitter operating temperature shall be from -5° to 140°F (-20° to 60°C). Transmitter shall contain

a thermostat-controlled enclosure heater for condensation protection below 30°F (-1°C). 7. Transmitter shall have three isolated 4-20mA outputs rated for 1000 ohm maximum load with menu-

selectable 0-5VDC alternative. Outputs shall be configured to transmit level, velocity and flow. 8. Provide two relay contacts rated 5 amp SPDT programmable for flow proportionate pulse to a remote

totalizer or sampler, high-low flow, velocity and/or level alarm, echo loss alarm. 9. Provide a white, backlit matrix LCD display indicating flow rate, level, velocity, totalizer and relay states

in user-selected engineering units. 10. Transmitter display indicating flow rate, units of calibration, totalizer and relay states shall be visible

without opening cover. 11. Transmitter shall be housed in a wall-mount, watertight NEMA4X (IP66) enclosure with hinged, clear

cover. Mounting hardware shall be included. 12. Transmitter electronics shall be surge protected on AC power input, sensor and 4-20mA outputs. 13. Transmitter power input shall be 100-240VAC 50-60Hz with power consumption of 5.28 Watts or less. 14. The transmitter shall permit plug-in field installation and auto-detection of optional accessories including

data logger and additional control relays.

E. OPTIONAL FEATURES FOR INSERTION AS REQUIRED

Sensors

1. Have separate, submerged Doppler velocity sensor, plus a non-contacting ultrasonic level sensor mounted above the liquid. Doppler velocity sensor shall be designed for continuous submersion in liquids and rated for fluid velocities from 0.1 to 20 ft/sec (0.03 to 6.2 m/sec) and reverse flow to -5 ft/sec (-1.5 m/sec). Non-contacting ultrasonic level sensor shall be rated for measurement range from 8" to 12 ft. (203.2 mm to 3.66 m) and shall include integral temperature compensation.

2. Sensor cable shall be 50 ft. (15 m) continuous length with potted bond to the Sensor head. 3. Sensor cable shall be 100 ft. (30 m) continuous length with potted bond to the Sensor head. 4. Separate length extended sensor cable shall be shielded tri-coaxial to a total maximum length of 500 ft

(152m). Cable shall be spliced with screw terminal connections in manufacturers recommended steel NEMA4 Junction Box.

5. Sensor and connecting cable shall be rated intrinsically safe to Class I,II,III, Div. I,II, Groups C,D,E,F,G for installation in hazardous locations.

6. Sensor shall mount with manufacturer's stainless steel mounting band for specified pipe diameter from 6" to 72" (150 to 1800 mm).

Electronics

1. Have a built-in Have a built-in 2 million point Data Logger with USB output to flash drives or mass storage devices. Data logger shall support time and date-stamped logging and generate formatted flow reports including total, average, minimum, maximum and times of occurrence. Include Windows software for data log graphing and export.

2. Have a thermostat controlled enclosure heater for Transmitter operation at temperatures below freezing.

3. Have manufacturer's recommended enclosure sunscreen to permit Electronics enclosure mounting in direct sunlight.

4. Transmitter power input shall be 9-32VDC with minimum power consumption of 2.5 W to 6.5 W max.

F. MANUFACTURER

Area-Velocity Flow Monitor shall be Greyline Model AVFM 5.0 and warranted against defects in materials and workmanship for one year.

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Retrieve data log files from Greyline instruments by RS232 or

RS485 connection or by dial-up modem

Export log files in CSV text format for use in spreadsheet or

database programs

Export graphs in bitmap and vector formats

Convert measurement units (e.g. gallons, liters, barrels,

inches and mm)

Create formatted reports with Minimum, Maximum, Average

and Totals

Create flow reports from level data through flumes and weirs

Create flow reports from level/velocity data files

View real-time data from Greyline Stingray

with Greyline data logging models!Free

Greyline LoggerSoftware for Windows™

RELIABLE MEASUREMENT AND CONTROL

Retrieve, DisplayAnalyze & Export

Greyline Logger

Features

Greyline Logger Graph and Table Views

Run the program to retrieve and display datalogs on your computer. Display multiple files or “sessions” onyour PC in both graph and table formats.

Greyline Logger

Greyline data logging instruments include an isolated RS232 serialoutput, terminal connections, cable and adaptors. Connect directly tothe serial port on your PC or Laptop, or by dial-up connection throughmodems and phone lines.

System Requirements

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Greyline Logger software runs onany PC with Windows

™98, 2000,

ME, NT or XPRS232 serial port or USB-to-RS232converter for log file retrievalModems for log file retrieval by dial-up telephone connection

Calculates Flowfrom Level-

Velocity log files

Greyline Logger Software

Data Retrieval, Display and Analysis

Table +GraphViews

Analyze dataon-screen andsave as diskfiles

Reload logfiles tocomparecurrent andpast data, orlogs fromdifferent sites

Generates Flow Reports withMinimum, Maximum, Average and Total

Loaded with Toolsfor Easy Reportingand Analysis

Real-time Display

View Level, Velocity and Temperaturereadings in real-time from GreylineArea-Velocity instruments

Level-Velocity Log Files

View separate level, velocity andtemperature data from Greyline Area-Velocity instruments

Generates FlowReports from

Flumes and Weirs

CODE BAND SIZE

VSJ6 6”/150 mm ID pipes (without adjustment jack)

VSJ8 8”/200 mm ID pipes

VSJ10 10”/250 mm ID pipes

VSJ12 12”/300 mm ID pipes

VSJ14 14”/350 mm ID pipes

VSJ15 15”/375 mm ID pipes

VSJ16 16”/400 mm ID pipes

VSJ18 18”/450 mm ID pipes

VSJ20 20”/500 mm ID pipes

VSJ24 24”/600 mm ID pipes

VSJ30 30”/750 mm ID pipes

(without adjustment jack)

VSJ Pipe Mounting Bandsfor Submersible Sensors

DETAIL

BAND ADJUSTMENT

JACK

Use optional VSJ stainless steel Pipe MountingBands for easy Sensor installation in round pipes.

Each Pipe Band includes:

Band Adjustment Jack allowing ±0.5” (13 mm) adjustmentfrom the nominal band size.

: VSJ6 and VSJ8 bands do not include adjustment jacks- they secure to pipe by spring tension.

Stainless steel bracket for Sensor mounting

Pre-drilled for tie wraps (included) to secure Sensor cable

w

w

w

Note

Mounting Instructions:

Install the stainless steel pipe band with thesensor mounting bracket at the invert (bottom)of the pipe. Ensure that the sensor bracket isparallel to the water surface (check with alevel). Mount so the tapered end of the sensorwill point upstream and the sensor cable willpoint downstream. Turn the ¼” hex nutclockwise to expand the bracket and secure tothe pipe wall by friction fit.

Insert the sensor into the mounting bracket andclip or tie wrap the sensor cable securely to thestainless steel pipe band.

VSJ PIPE MOUNTING BAND

BAND

ADJUSTMENT JACK

SENSOR MOUNTING

BRACKET

FASTEN SENSOR

CABLE TO PIPE OR

CHANNEL WITH

METAL CLIPS OR

TIE WRAPS

SENSOR

END VIEW

Open Channel Flow Monitoringa Flume or Weirwithout

The Township of South Glengarry in EasternOntario discharges continuously from their 72,000m3 sewage lagoon. But they ran into flowmeasurement problems when their magneticflowmeter was unable to detect seasonal low flowrates.

Operations Manager, Shawn Killoran selected aGreyline AVFM 5.0 Area-Velocity Flow Monitorbecause it was simple to install in a horizontaldischarge pipe from the lagoon and because itcould accurately detect and monitor the full rangeof flow rates up to 3,800 m3/D.

Township operators liked the Greyline AVFM 5.0datalogger reporting system where formatted flowreports (total, minimum, maximum and average)could be downloaded automatically to a USBmemory stick without carrying a laptop to the site.

The AVFM 5.0 flowmeter electronics were AC-powered and installed in an insulated shed alongwith a sampler.

The sealed ultrasonic flow sensor was mountedthrough a tee section at the invert of the

pipe and. A stainless

steel bracket was screwed into the pipe to securethe sensor in place.

After several months of operation, no algae,sediment or weed build-up was observed on thesensor. But the mounting location was fitted witha removable cover to allow periodic cleaning ifrequired.

Visit for product information.

12” PVChorizontal connected to the flowmeterelectronics through a watertight cable

www.a-a.co.kr

Lagoon Discharge Flow Monitoring

Area-Velocity Flow Sensor