PTJ301 immersion type liquid level sensor/transmitter (with on-site display immersion type liquid level sensor/transmitter)

characteristic:

1: Adopting a fully stainless steel laser welding structure, it has good moisture resistance and excellent medium compatibility.

2: The use of independently developed amplification circuits greatly improves the stability of sensor signal output and reduces the attenuation of sensor feedback signals due to the depth of water in the sensor

3: By using diffused silicon or ceramic piezoresistive cores, the sensor can reflect changes in liquid level at any time, resulting in more accurate and error free measurement results

4: On the basis of the original amplification circuit, a lightning protection circuit has been added, effectively protecting the safety of the immersion type liquid level sensor/transmitter used in the field

Mainly suitable for liquid level measurement and control of rivers, groundwater levels, reservoirs, water towers, and containers.

These types of sensors are commonly referred to as input level sensors, input level transmitters, level sensors, level transmitters, groundwater level sensors, groundwater level transmitters, water tower level and water pressure measurement and control instruments.

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)

Supply voltage: 24DCV (9-36DCV)

Medium temperature: 0-85 ℃

Environmental 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 performance: 0.1% FS/year

Vibration impact: Within the mechanical vibration frequency range of 20Hz to 1000Hz, the output variation is less than 0.1% FS

Electrical interface (signal interface): Connect the tight wire waterproof nut to the five core ventilation cable. Note: The standard cable length at the factory is three meters. If the user needs to extend it, please specify it when ordering.

Mechanical connection (threaded interface): immersion type