Introduction of Open channel ultrasonic flow meter
ULFM series provides accurate non-contact ultrasonic open channel flow measurement
Features of Open channel ultrasonic flow meter
1.Open channel flow rate can be measure per 1mm according to the liqild level. The liquid level change 1mm.open channel flow rate changed with it. Measurement accurancy higher , flow measurement more accurante .
2.Suitable for variety of flume:Parshall flume,Right-angled triangle weir,Rectangular weir.
3.Variety of flow rate unit is optional
4.Fully closed structure, Strong anti-corrosion
5.Strong anti-interference ability
6.Low blind zone,High sensitivity,High stability
7.Provide at most 6 relay switch signal
8.MODBUS-RTU digital signal is avaliable.
9.The distance from transmitter to ultrasonic probe can up to 1000m
10.AC and DC power supply is optional.
11.Romote control set up parameter is avaliable,Easy to operate.
Transmitter of Open channel ultrasonic flow meter
|
Liquid level resolution |
1mm. |
|
Liquid level error |
1mm or 0.2% of full measurement range (The maximum value, calm water) |
|
Display method |
2-line 14 LCD (with backlight) |
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Instantaneous flow rate range |
0.0000~99999L/S or m³/h |
|
Maximum cumulative flow |
9999999.9 m³ |
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Analog signal output |
one path DC4-20mA current corresponding to flow rate. |
|
Load resistance |
0~500Ω |
|
Communications |
Serial communication,standard MODBUS-RTU protocol. |
|
Relay Output |
upper limit ,lower limit alarm and control.( instantaneous flow rate and water level ) high level ,low level and breakdown alarm ect . |
|
Mode of relay |
normally open or closed.(Can be setup) |
|
Quantity of relay |
at most six. |
|
Specification of relay |
5A 250VAC/30VDC |
|
Power supply |
DC: DC24V(±5%) 0.2A AC: AC220V(±5%) 0.1A |
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Detection Period |
1S ( can be adjust) |
|
Ambient Temperature |
-40C to +70C |
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Casing materials |
ABS |
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Protection grade of casing |
IP67 |
|
Cable gland cover |
PG9/PG11/PG13.5 |
|
Parameter setting method |
3 pcs inductive buttons |
|
Install method |
Wall mounted |
|
Casing Size |
186X183X126mm |
Application
Ultrasonic Open Channel Flow meter is non-Contact instrument,Adopt Sound wave reflection principle to measuring liquid level in the water weir trough, Get the flow rate go thought the weir trough by conversion . The instrumeny mainly consist of ultrasonic probe and transmitter ,The materials in all plastic seal structure.can be widely application in Industry, environmental protection and ect industries.Measurement open channel flow rate accurately.