4-20mA 0-10V Liquid Level Pressure Transmitter
QST-201 series liquid level sensors are consisting of well-sealed immerging oil-filled liquid level transducers and special circuit for manometers. Have characteristics of high precision, good stability, long life and easy to fix. Adopt special sealed configuration, so with good capability of anti-leakage.
According the relation between pressure, density and liquid level, the liquid level transducers measure the liquid pressure which in direct ratio with depth of liquid, then via amplificatory circuit, the measured pressure is transferred to standard 4~20mA current signal(or standard voltage signal).
◆Range:0~0.6 mH2O....0~200 mH2O
◆Sealed structure, IP68.
◆Accuracy: 0.1% FS, 0.25% FS (standard), 0.5% FS
◆There is two kinds of connector to be chosen: intracavity or flush membrane type
◆Integrated construction, without external adjustment.
Dimensions: (unit: mm)
Liquid which are compatible to 316L stainless steel
transmitter, mA (2 wires)
transmitter, Vdc (3 wires)
0.1, 0.25(standard), 0.5
Temp. coefficient of ZERO
Temp. coefficient of SPAN
≥500 @ 100 Vdc
current output, Ohm
voltage output, Ohm
pressure memberane material
Material for housing
4-core,Ф7.6 mm shielded cable with vent pipe which is mechanically strong enough for deep submersible liquid level measurements