Greyline Instruments AVFM 6.1 Area Velocity Flow Meter

Measures flow through partially filled pipes, channels, canals and turnouts without a flume or weir.

Features

  • No flume or weir required
  • Flow in open channels and partially filled pipes
  • Measures velocity + level to calculate flow
    • 0.1 to 20 ft/sec & reverse flow to -5 ft/sec velocity
    • 1 inch to 15 feet level range
  • Works in partially filled and surcharged pipes
  • Measures forward and reverse flow
  • 3 Isolated 4-20mA outputs (Flow, Level and Velocity)
  • 6in minimum pipe size

The Greyline Instruments, by Pulsar Measurement, AVFM 6.1 area velocity flow meter measures flow through open channels, partially full pipes and surcharged pipes without a flume or weir. It is ideal for wastewater, stormwater, effluent, industrial wastewater, and irrigation water.

The AVFM 6.1 uses a submerged ultrasonic sensor to continuously measure both velocity and level in the channel. The sensor resists fouling, corrosion and abrasion. The flow meter can be configured with the standard submerged velocity-level sensor, or with submerged velocity plus a separate non-contacting ultrasonic level sensor, for highly aerated fluids or those with high concentration of suspended solids.

View flow rate and total flow on the large backlit LCD display and connect to external devices with three 4-20mA outputs and two control relays. Flow rate, volume, run hours, and diagnostic information available through the optional Modbus® RTU serial communications.

Cables

Greyline Instruments VXC Sensor Cable
Greyline Instruments VXC Sensor Cable

Submersible, tri-coaxial cable available in lengths up to 500 feet.

Starting at $275.00

Sensors/Probes

Greyline Instruments QZ02L-SS-SD Velocity & Level Sensor
Greyline Instruments QZ02L-SS-SD Velocity & Level Sensor

316 stainless steel submersible ultrasonic sensor, continuously measures both velocity and level in the channel.

Starting at $890.00
Greyline Instruments QZ02L-DP Velocity Sensor
Greyline Instruments QZ02L-DP Velocity Sensor

Submersible ultrasonic sensor continuously measures stream velocity in the channel.

Starting at $695.00
Greyline Instruments PZ15 Level Sensor
Greyline Instruments PZ15 Level Sensor

Non-contacting ultrasonic level sensor is small enough for very small flumes and powerful enough for really large applications.

Some Models in Stock
Starting at $565.00
Greyline Instruments PZ15-LP Level Sensor
Greyline Instruments PZ15-LP Level Sensor

Low profile, non-contacting ultrasonic level sensor ideal for confined spaces and small flumes.

Some Models in Stock
Starting at $565.00

Accessories

Please consider these optional accessories.

Greyline Instruments VD Series Pipe Dams
Greyline Instruments VD Series Pipe Dams

Maintains low flow water level at 1” or higher as required for ultrasonic level measurement.

Starting at $225.00
Greyline Instruments VSJ Series Mounting Bands
Greyline Instruments VSJ Series Mounting Bands

Provides easy mounting for submersible sensors inside of round pipes.

Some Models in Stock
Starting at $205.00
Greyline Instruments JB2X Sensor Cable Junction Box
Greyline Instruments JB2X Sensor Cable Junction Box

NEMA4X/IP66 polycarbonate junction box for extending sensor cable lengths.

$54.00
Part Number Price Available
AVFM 6.1A-1-A-1-A1-1-A-1-A
Show Configuration
$4,265.00 1 in stock

Interested in Other Part Numbers?

Other part numbers are available to order but are not currently in stock. Current availability for non-stock parts is "Usually ships in 2-3 weeks". Click here to select options