OTT CBS bubble water level gauge
Then, assuming that the density of the liquid remains unchanged, there is a certain linear relationship between the measurement liquid level and the air pressure in the measurement tube. By measuring the air pressure in the measuring tube, the current water level can be converted. This is the basic principle of the bubble water level gauge to measure the liquid level.
The professionally designed air chamber can keep the air pressure in the tube stable, eliminate small changes in air pressure caused by fluctuations in the water surface, and prevent the air tube from entering or blocking.
The energy pump can measure the air pressure in the tube before each measurement. Only when the air pressure changes greatly, the air is pumped to reduce the loss of the air pump and extend the service life of the air pump.
|Range||0 – 15 m / 0 – 30 m (optional)|
Standard: ± 5 mm
Optional: ± 1.5 mm (USGS standard) within the first 3 m of the 15 m range
|Resolution||1 mm / 0.1 mBar|
|Measurement interval||1 min - 24 h|
|Output||SDI12、4…20 mA (0.1%, 15 Bit)|
|powered by||10 -30 V DC, usually 12 V / 24 V|
1 minute measurement interval: 320 mAh / day
Measurement interval 15 minutes: 25 mAh / day
|Tube diameter||Ø 2 mm、Ø 1/8’’、Ø 4 mm|
|size||165 mm x 205 mm x 115 mm|
|Shell material||CBS engineering plastics|
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