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AVFM-II Area-Velocity Flow Monitor For Open Channels and Pipes
Ultrasonic - Measures Velocity + Level to Calculate Flow
No Flume or Weir required
Monitor flow through open channels, partially full sewer pipes and surcharged pipes without a flume or weir.
Ideal for stormwater, combined effluent, raw sewage, irrigation water and streams.
The AVFM-II uses a submerged ultrasonic sensor to continuously measure both Velocity and Level in the channel.
The sensor is a completely sealed ultrasonic unit with no orifices or ports. It mounts inside a pipe or at the bottom
of a rectangular, trapezoid or egg-shaped channel. Calibration is simple: enter the pipe diameter or channel width
and the AVFM-II computes the flow volume and displays the flow rate.
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Pipe Range:-
>13mm up to 4.5m
Power Input:-
100 –260VAC, 50/60Hz, 12-28VDC 5watts max.
Flow Rate Range:-
0.08m/s to 12m/s
Accuracy:-
+/-2% of full scale. Requires solids
or bubbles of minimum size 100 microns,
minimum concentration 75ppm.
Repeatability:-
+/- 0.1%.
Linearity:-
+/-0.5% of full scale.
Display:-
Large 4 Digit LCD for programmable output in engineering units.16-digit alpha numeric for Totaliser, Menu, status, signal strength.
Output:-
Isolated 0/4 –20mA(1000ohm load max.) 3-5amp rated SPDT relays, programmable flow
alarms and/or proportional pulse. Adjustable
sensitivity and damping.
Electronics Operating Temp:-
-23°C to + 60°C.
Sensor Operating Temp:-
-40°C to + 90°C.
Options:-
Intrinsic safety barriers, high temp to 150°C, ISE insertion and dual head types for special applications. Enclosure heater controlled to maintain temp. at 40°C
Data logger:-
50,000 points via RS 232 output with Windows software |
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Stingray Portable Level/Flow/Velocity Logger, open channel or partially full pipe.
