4 ~ 20mA current anti-corrosion input type liquid level sensor, anti-corrosion input type sensor, 4 ~ 20mA current anti-corrosion input type liquid level sensor, anti-corrosion input type sensor ptj302 anti-corrosion input type liquid level sensor / transmitter

characteristic:

1: All high polymer high-density material / high polymer high-density material is adopted, with anti-corrosion cable, good moisture-proof ability and excellent medium compatibility.

2: The self-developed amplifier circuit greatly improves the stability of the sensor signal output and reduces the weakening of the sensor feedback signal due to the depth of the sensor

3: Using diffused silicon piezoresistive core or ceramic piezoresistive core, the sensor can reflect the change of liquid level at any time, and the measurement effect is more accurate

4: The lightning protection circuit is added on the basis of the original amplification circuit to effectively protect the safety of the input liquid level sensor / transmitter in the field

5: The shell is made of polysilicon

It is mainly applicable to the liquid level measurement and control of highly corrosive liquid, also known as corrosive input liquid level transmitter.

Main technical parameters:

Range: 100mmh2o ~ 100mh2o, 500mmh2o ~ 500mh2o (water level high / depth)

Comprehensive accuracy: 0.2% FS, 0.5% FS, 1.0% FS

Output signal: 4 ~ 20mA (two-wire system), 0 ~ 5V, 1 ~ 5V, 0 ~ 10V (three wire system)

Power supply voltage: 24dcv (9 ~ 36dcv)

Medium temperature: 0 ~ 85 ℃

Ambient temperature: normal temperature (- 20 ~ 85 ℃)

Load resistance: current output type: maximum 800 Ω; Voltage output type: greater than 50K Ω

Insulation resistance: greater than 2000m Ω (100VDC)

Sealing grade: IP68

Long term stability: 0.1% FS / year

Vibration influence: the output change is less than 0.1% FS within the mechanical vibration frequency of 20Hz ~ 1000Hz

Electrical interface (signal interface): tight waterproof nut is connected with five core vent cable. Note: the standard cable length is 8m when leaving the factory. If the user needs to lengthen it, it shall be indicated when ordering.

Mechanical connection (threaded interface): input type