SEM226HC Piezoelectric Rain Detector

Measurement form

piezoelectric

Measuring range

0-200mm/h

Resolution

0.1mm

Sampling frequency

1HZ

Power supply

DC12-24V

Communication

RS485 interface (MODBUS protocol)

Power consumption

< 0.2W

Optional Output

Continuous rainfall, rainfall duration, rainfall intensity, maximum rainfall intensity

Maximum output frequency

Passive mode: 1/S

working temperature

0°C—70°C

Degree of protection

IP65

Fixing method

The standard product is fixed by sleeve, see the product dimension drawing. (Flange fixing or bending plate fixing mode is optional)

Fixing bracket

None for standard products, 1.5m and 1.8m brackets are optional (to be purchased separately)

Cable

3m cable (10m communication cable is optional)

Remarks

Measuring rainfall by piezoelectric principle: measure the size of raindrops by the impact force of falling raindrops on the external surface, and calculate the rainfall. Compared with the traditional non physical tipping bucket rain gauge, the accuracy is its weakness. In most cases, the measured value of the piezoelectric rain gauge will be close to that of the tipping bucket rain gauge, but there will be significant deviation for special cases (short-term heavy rainfall). The arc shaped top cover is designed not to retain rainwater, and can work around the clock without maintenance. Small size, no moving parts, easy installation. It is more suitable for occasions that need to be moved and cannot be maintained.