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LMP633-NLN Submersible gauge pressure transmitter

Brief introduction

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.


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.

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.

Signal transmitting module adopts transient voltage resistance protective circuits to assure operation regularly even under the harsh surge voltage environment.

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.


Measuring range: 1mH2O - 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 SUS316

Stability: ±0.2% URL/ year

Sensor seal: O-ring(FKM), stainless steel welding

Industry application

Depth or level measurement in wells and open waters

Ground water level measurement


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