Description
Submersible Hydrostatic Liquid Level Sensor, Output Signal 4-20mA, 0.5-4.5V, 0-5V, 0-10V, RS485
Default Range 0-5 Meter, Max.0-500 Meters, Accept Customize Temp.Measure Feature.
304 Stainless Steel Material, Accept Customize 316L
Diffused-Silicon Pressure Sensor It is a high quality hydrostatic level measuring instrument, which is developed by introducing the advanced
diffusion silicon pressure sensor and IC SENSORS circuit technology from NOVO company in the United States,
and it applies the silicon fine etching process and silicon wafer lamination, which are two cutting-edge technologies
in the world. It is widely used in petroleum, chemical, metallurgy, environmental protection, food, water
conservancy, urban water supply, oilfield and other industries for liquid level measurement. The excellent quality of
the hydrostatic level transmitter meets the need for high-precision liquid level detection instrumentation for
industrial automation and metering automation of some industries in China.
Product Features
Good stability, high accuracy, high performance / price ratio, directly into the measured medium, installation
and use is quite convenient, solid-state structure, no moving parts, high reliability, long service life, from water, oil
to viscosity of the larger paste can be measured with high accuracy, not affected by the measured medium blistering,
deposition, electrical characteristics no material fatigue wear, insensitive to vibration, shock no polarity 4-20mA
output.
Working Principle
Measuring principle by hydrostatic pressure
When the level transmitter is put into the measured liquid at a certain depth, the pressure on the liquid surface
of the sensor is P=ρ.g.h+P0 in the formula
P: the pressure on the liquid surface of the sensor
Unit:Pa
ρ: density of the measured liquid
Unit:Kg/m³
g: local acceleration of gravity
Unit:m/s²
P0:Atmospheric pressure on the liquid surface
Unit:Pa
H: sensor into the liquid depth
Unit:m
At the same time, the atmospheric pressure P0 on the liquid surface is introduced into the back pressure
chamber of the sensor through the air guide cable to offset the P0 on the liquid surface of the sensor, so that the
pressure measured by the sensor is P=ρ.g.h. Obviously, the liquid level depth H can be obtained by measuring the
pressure P. The pressure signal sensed by the sensor is converted and amplified by the circuit and output as a
standard signal after compensation.
Range | 0~1....50m.....500m |
Output signal | 4~20mA (default), 0~5V, 0~10V (customized) |
Measurement accuracy | 0.5% (0.2% can be customized) |
Nonlinear | ≤0.5FS% |
Repeatability | ≤0.2FS% |
Zero drift | ≤0.2%FS/4H |
Temperature drift | ≤0.04%FS/ºC |
Stability | ≤0.2%FS/year |
Operating Voltage | 24VDC (default), 12V, 5V (customized) |
Compensated temperature | 0~50ºC |
Operating temperature | -20~70ºC (recommended below 50ºC) |
Overload capacity | 300% |
Measuring medium | >1×10^8 pressure cycle (25ºC) |
Shell material | Various liquids compatible with 304 |
Diaphragm material | 316L stainless steel |
Protection class | IP68 |
Complaint
