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4-20mA 0-10V Liquid Level Pressure Transmitter

4-20mA 0-10V Liquid Level Pressure Transmitter

QST-201 is used to measure inquid level from 2 to 200m.4~20mA,0~5V or 0~10v signal output can be selected.

 4-20mA 0-10V Liquid Level Pressure Transmitter

Product Introduction:


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).

Feature:

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)

Electrical connection:

 

Technical Specifications:


Measuring media

Liquid which are compatible to 316L stainless steel

Measuring range

mH2O

0~0.6,0~1,0~2,0~5,0~10,0~20,0~30,

0~50,0~100,0~150,0~200

Overload pressure

%FS

150

Signal output

transmitter, mA (2 wires)

4~20

transmitter, Vdc (3 wires)

0~5, 0~10

Power supply

Vdc

12~36Model 24

Static accuracy

%FS

0.1, 0.25(standard), 0.5

Zero adjustment

%FS

≤±0.25

Span adjustment

%FS

≤±0.25

Long-term stability

%FS/year

<±0.5

Response time

ms

<2

Storage temp.

ºC

-40~+100

Operation temp.

ºC

0~+80

Compensated temp.

ºC

0~+50

Temp. coefficient of ZERO

%FS/10ºC

0.2

Temp. coefficient of SPAN

%FS/10ºC

0.2

Insulation resistance

M Ω

≥500 @ 100 Vdc

Load resistance

current output, Ohm

250~1100

voltage output, Ohm

>5000

Environmental protection

IP rating

IP 68

pressure memberane material

316L SS

Material for housing

304 SS

Electrical connection

connector/cable

4-core,Ф7.6 mm   shielded cable with vent pipe which is mechanically strong enough for deep   submersible liquid level measurements

 

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