Submersible liquid level transmitter

The input liquid level transmitter is based on the principle that the measured static pressure of the liquid is proportional to the height of the liquid. It uses the piezoresistive effect of diffused silicon or ceramic sensitive elements to convert the static pressure into an electrical signal. Temperature compensated and linearly corrected. Convert to standard current signal output. The sensor part of this product can be directly put into the liquid, and the transmitter part can be fixed with a flange or bracket, making it extremely convenient to install and use. Injection-type liquid level transmitters are widely used in the measurement and control of water and liquid levels in petrochemical power plants, urban water supply, drainage, hydrological exploration and other fields.
The input liquid level transmitter is an integrated input level meter, a split input level meter, and an intelligent input level meter.
Product features of submersible liquid level transmitter
Split structure The sensor part put into the liquid is a fully sealed stainless steel structure, and the shell of the electronic circuit part is a cast aluminum structure, which is easy to adjust and wire.
The integrated structure sensor and amplification circuit are both in a stainless steel fully sealed housing, without external adjustment
The protection level of the sensor housing is , and the protection level of the junction box is
This product is measured by a high-performance pressure sensor Components, high precision, small size, easy to use, strong anti-interference ability, strong reliability, high stability, good sensitivity, high waterproof and anti-condensation
Maintenance-free, easy installation and debugging, directly put into the water to measure the liquid from the end of the transmitter to the liquid surface Bit height.
Working principle of submersible liquid level transmitter
Using static pressure measurement principle
When the liquid level transmitter is put into a certain depth of the liquid to be measured, the pressure on the liquid surface of the sensor will be The formula is
In the formula
Pressure on the liquid surface of the transmitter
Density of the measured liquid
Local gravity acceleration
Atmospheric pressure on the liquid surface
Transmission At the same time, the pressure of the liquid is introduced into the positive pressure chamber of the sensor through the gas-guiding stainless steel, and then the atmospheric pressure on the liquid surface is connected to the negative pressure chamber of the sensor to offset the pressure on the back of the sensor and make the sensor The measured pressure is obviously. By measuring the pressure, the liquid level and depth can be obtained.
Technical specifications of submersible liquid level transmitter
Measuring range
Accuracy
Operating temperature～℃
Output signal two-wire system～
Power supply voltage standard～< br/> Insensitive area
Load capacity
Relative temperature
Protection level
Explosion-proof mark II