Hydrostatic level sensor / for liquids / for water / for tanks
LMP633-NLN Shanghai LEEG Instruments Co.,Ltd.


  • Technology:


  • Medium:

    for liquids, for water

  • Applications:

    for tanks, for industrial applications, for marine applications, high-temperature, for OEM

  • Other characteristics:

    stainless steel, analog, economical, with temperature sensor, 4-20 mA, RS-485

  • Protection level:

    submersible, intrinsically safe, IP68

  • Level range:

    Min.: 1 m (3' 4")

    Max.: 200 m (656' 2")

  • Process pressure:

    Min.: 0.1 bar (1.45 psi)

    Max.: 20 bar (290.08 psi)

  • Process temperature:

    Min.: -10 °C (14 °F)

    Max.: 70 °C (158 °F)


LMP633 Submersible level transmitter is designed for dealing with the most severe demanding level measurement conditions. It is the optimal choice to satisfy all of high demand level measuring applications.

1.The sensor adopts the most advanced micro-processor technology with comprehensive linear error compensation and temperature error compensation to assure the highest precision of measuring result.
2.The probe adopts full potting condensation-preventing technology, safe and reliable dual-seal design and fully welding technology with solid stainless steel body to assure long term stability and permanent air tightness.
3.Signal transmitting module adopts transient voltage resistance protective circuits to assure operation regularly even under the harsh surge voltage environment.
4.The seal of the cable adopts intensive cone plug sealing design to assure the long working life even under large mechanical load conditions during the installation and long-term use.

Pressure types: Gauge pressure,absolute pressure
Measuring range: 1mH2O - 200mH2O(gauge), 5mH2O-200mH2O(absolute)
Output signal: 4-20mA,4-20mA+HART,0.5-4.5VDC Modbus-RTU/RS485, others
Reference Accuracy: ±0.2%
Media temperature:-10~ 70℃
Diameter: 28 mm
Sensor type: Piezoresistive silicon pressure sensor
Diaphragm: stainless steel 316
Stability: ±0.2% URL/ year
Proction class:IP68, terminal IP67
Sensor seal: O-ring(FKM ), Stainless steel welding
Cable material: PUR,PTFE others


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