POF Partially Filled Pipe & Open Channel Flow Meter

Features:

● Can programme and measure any shapes of open channel and partial filled pipe by 20 coordinate points.
● Velocity range 0.02-12m/s, accuracy ±1.0%. 4.5-inch LCD display.
● Bi-directional measuring, positive flow and negative flow.
● Depth measurement, accuracy ±0.1%. Built-in coordinate correction function.
● Pressure compensation function ensures the accuracy of depth measurement by pressure sensor when the external pressure changes.
● The conductivity of liquid can be measured to determine the composition of the measured medium.
● Digital signal processing to make signal acquisition more stable and flow measurement more accurate.
● Battery powered. Standard 4-20mA. RS485/MODBUS output, opt. GPRS. Available configure data logger with SD card.
● The whole sensor is potted and the protection grade is IP68.

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Summary

Specification

On-site Pictures

Application

Partially Filled Pipe & Open Channel Flow Meter

Panda POF Series is designed to measure velocity and flow for open channel stream or river and partially filled pipes. It utilizes Doppler ultrasonic theory to measure fluid velocity. According to pressure sensor, the flow depth and sectional area can be obtained, finally the flow can be calculated.

POF transducer has the functions of conductivity test, temperature compensation, and coordinate correction.

It is widely applied in measuring sewage, wasted water, industrial effluents, stream, open channel, residential water, river etc. It is also applied in monitoring sponge city, urban black odorous water and river and tide research.

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Sensor

Velocity	Range	20mm/s-12m/s Bi-directional Measure. Default 20mm/s to 1.6m/s signal-directional measurement.
	Accuracy	±1.0% typical
	Resolution	1mm/s
Depth(ultrasonic)	Range	20mm to 5000mm (5m)
	Accuracy	±1.0%
	Resolution	1mm
Depth(pressure)	Range	0mm to 10000mm (10m)
	Accuracy	±1.0%
	Resolution	1mm
Temperature	Range	0 ~ 60°C
	Accuracy	±0.5°C
	Resolution	0.1°C
Conductivity	Range	0 to 200,000 µS/cm
	Accuracy	± 1.0% typical
	Resolution	±1 µS/cm
Tilt	Range	±70° Vertical and horizontal axis
Tilt	Accuracy	±1° angles less than 45°
Communication	SDI-12	SDI-12 v1.3 Max. cable 50m
Communication	Modbus	Modbus RTU Max. cable 500m
Display	Display	Velocity, flow, depth
Display	Application	Pipe, open channel, natural stream
Environment	Operation Temp	0°C ~+60°C (water temperature)
	Storage Temp	-40°C ~+75°C
	Protection Class	IP68
Others	Cable	Standard 15m, Max. 500m
	Material	Epoxide resin sealed enclosure, stainless steel mounting fixture
	Size	135mm x 50mm x 20mm (LxWxH)
	Weight	200g（with 15m cables）

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Installation	Wall mounted, Portable
Power Supply	AC: 85-265V DC: 12-28V
Protection Class	IP66
Operation Temp	-40°C ~+75°C
Material	Glass fiber reinforced plastics
Display	4.5-inch LCD
Output	Pulse, 4-20mA (flow, depth), RS485(Modbus), Opt. Data logger, GPRS
Size	244L×196W×114H (mm)
Weight	2.4 kg
Data Logger	16GB
Application	Partial filled pipe: 150-6000mm; Open channel: channel width > 200mm