Hydrostatic level transmitter / piezoresistive / resistance / for liquids
LMP633-NLN Shanghai LEEG Instruments Co.,Ltd.


  • Technology:

    hydrostatic, piezoresistive, resistance

  • Medium:

    for liquids

  • Applications:

    for storage tanks, fuel tank, high-temperature, for OEM

  • Other characteristics:

    HART, stainless steel, compact, analog, 4-20 mA, RS-485, high-precision, temperature-compensated, miniature, high-accuracy, economical, with temperature sensor, Modbus

  • Protection level:

    submersible, intrinsically safe, waterproof, IP68

  • Level range:

    Min.: 5 m (16' 5")

    Max.: 200 m (656' 2")

  • Process temperature:

    Min.: -10 °C (14 °F)

    Max.: 70 °C (158 °F)


LMP633 Non-Vented submersible level transmitter is applied when the atmospheric pressure is measured by a separate barometer and when the water level is calculated as the difference between the absolute value and the ambient pressure.

Measuring range: 5mH2O - 200mH2O
Output signal: 4-20mA, 4-20mA+HART, 0.5-4.5VDC, Modbus-RTU/RS485, others
Reference Accuracy: ±0.2% URL, ±0.5% URL
Media temperature: -10~ 70℃
Sensor type: Piezoresistive silicon pressure sensor
Diaphragm: Stainless steel 316
Stability: ±0.2% URL/ year
Sensor seal: O-ring(FKM ), Stainless steel welding

Depth or level measurement in deep wells


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