HGUOC Ultrasonic Open Channel Flow Meter

HGUOC Ultrasonic Open Channel Flow Meter

HGUOC Ultrasonic Open channel flow meter contain main unit and sensor, connect sensor to main unit through cable. Sensor detect the liquid level in weir or flume base on the principle of sound wave reflection, then main unit use the related formula to calculate the liquid volume flow which pass weir or flume.

Ultrasonic Open channel flow meter is non-contact instrument, widely service groundwater flow monitoring system, Industrial wastewater discharge monitoring, accurately measuring open channel flow.

Main unit technical data:


Main unit parameter description
Weir/flume type
ISO type: Parshall flume (No.1 to 23), rectangular weir(25/50/75/100cm or customize weir width), triangular weir(30°, 45°, 60°, 90°, 120°), customized weir/flume
China National type: Parshall flume (No.1 to 25), rectangular weir (25/50/75/100cm or customize weir width), Right-angled triangle weir, customized weir/flume.
Level resolution
1 mm
Level error
1mm or 0.2%FS @ stable condition
Display
LCD display with graph and backlight
Op. Language
Chinese / English (can be selected)
Parameter setting
Keys operation ( manipulator is option)
Instant flow display range
0.000 – 999999L/S or m3/h, m3/min (automatically conversion base on selected flow unit)
Total flow display Max. value
99999999.9 m3/h
Analog output
4-20mA (corresponding to instant flow)
Load resistance
0-500Ω
Communication
RS485 interface, Modbus-RTU protocol
Relay output
Upper limit/lower limit alarm (to control instant flow or liquid level)
Pulse output (for accumulated flow, pulse equivalent can be selected)
Relay switch mode
Normal open / Normal close (can select)
Relay Number
6 pcs at most
Relay specification
5A 250VAC / 30VDC
Power supply
24VDC (±5%) 0.2A; 220VAC(±20%) 0.1A
Measure cycle
1 second as default (can set)
Ambient Temp.
-40 to 75℃
Housing material
ABS
Weather proof
IP67
Cable gland
PG9 / PG11 / PG13.5
Mounting
Wall mounted
Size
250*185*125 mm