GLP2881 liquid level transmitter had developed by introduce advanced U.S. Nova company diffusion silicon pressure sensor and IC Sensors circuit technology, and its application with two world advanced technology of the silicon fine corrosion process and silicon wafer composite, it is a high quality of static pressure type level measurement instrument and be widely used in petroleum, chemical industry, metallurgy, environmental protection, food, water, urban water supply, oil field industries such as level measurement.
GLP2881 liquid level transmitter with excellent quality, a variety of installation convenient for field installation process, special occasions can be specially designed. Meet some needs of the industrial automation in China and the industry of the measurement precision of liquid level instrumentation.
Using the principle of static pressure measurement, when the liquid level transmitter into the liquid to be tested in a certain depth, sensor to meet the pressure on liquid level for: P =ρ.g. H + Po type:
P：pressure of the sensor meet liquid level l, —-> unit：Pa
ρ：Liquid density —-> unit：kg/m3
g：the local acceleration of gravity —-> unit：m/s2
P0：Atmospheric pressure of liquid surface —-> unit：Pa
H：the depth of the sensor in liquid or height of installation position to liquid surface —-> unit：m
At the same time, it can introduce surface of the liquid atmospheric pressure P0 into the sensor back pressure cavity by gas leading cable, to offset the P0 sensor to meet the liquid surface, the measured pressure sensor for: P =ρ.g. H (limit of the sensor at the bottom of the back pressure cavity with atmosphere is same)
Obviously, it can get liquid depth H by measured pressure P, Pressure sensor sensing signal is amplified by circuit transformation and compensation in a standard signal output.
Note: this model is suitable for level measurement of open container
Air-tight container adopts GLP3351DP or GLP3351LT differential pressure for device or some other type of measurement.
Basic Technical Parameters:
Structure And Material: