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LMK 331 Screw-In Level Transmitter

LMK 331 Screw-In Transmitter: Precision level and process measurement for liquids, oils, and gases. Features semi-flush pressure sensor for viscous/polluted media. PVDF pressure port option for aggressive substances. Available in intrinsically safe and functionally safe (SIL 2) versions. Ideal for diverse measurement applications.

LMK 331 Screw In Transmitter Product Parameters

  • Pressure Ranges: 0-400 mbar to 0-60 bar
  • Output Signal: 2-wire 4-20 mA, 3-wire 0-20 mA/0-10 V
  • Accuracy: High precision for liquids, oils, and gases
  • Electrical Connections: Multiple options including 2-wire and 3-wire systems
  • Process Connections: G 3/4″ flush for pasty/impurity media, PVDF for aggressive media
  • Media Compatibility: Suitable for a wide range of media types
  • Special Features: Intrinsically safe (Ex ia), SIL 2 compliant, customisable versions available


LMK 331 Level Transmitter Product Highlights

The LMK331 Level Transmitter is a versatile and reliable instrument designed to measure nominal pressure ranging from 0 … 400 mbar up to 0 … 60 bar. It offers two output signal options: a 2-wire configuration providing a 4 … 20 mA signal, and a 3-wire configuration offering a 0 … 20 mA or 0 … 10 V signal. Upon request, other output signals can also be accommodated. One of its special features is its pressure port, which is available in two options: a G 3/4″ flush port suitable for pasty and impurity-laden media, and a PVDF pressure port ideal for aggressive substances. The LMK331 Level Transmitter also offers optional versions such as an IS-version (for 4 … 20 mA / 2-wire configuration), which is intrinsically safe for gases and dusts, and a SIL 2 application compliant with IEC 61508 / IEC 61511 standards. Furthermore, it can be tailored to meet customer-specific requirements, making it a highly customisable solution.

Screw-In Level Transmitter Applications

  • Plant and machine engineering
  • Energy industry
  • Environmental engineering (water-sewage-recycling)
  • Medical technology 

To download the latest datasheet click here: LMK 331

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