Conductivity Point(S) Level Switch Conductive Liquids (Model – LWS)

Conductivity type level limit switches are static devices with no.


  • Compact size.
  • Integral version with universal power supply (15 to 60 VDC & 15 to 260 VAC).
  • Low power consumption.
  • No calibration required.
  • Various customized process connections like Threaded/Flanged.
  • Remote electronics version available on request.
  • Exd version available-suitable for gas group IIC, T6 as per IEC 60079-1-2007 & IEC 600529-2001.


trumenLWS Conductivity level limit switches are static rendered furnished devices with no moving parts.
A low voltage sine-wave is provided into the liquid using a reference rod (or electrode).
The electronics continuously scans the sense rod (or electrode) for the presence of sine-wave signal on it.

trumenAs soon as liquid bridges the two electrodes, the signal appears on sense-electrode.
Device gives the switching output by analyzing the received signal at sense electrode.


  • Suitable for conductive liquids like water.
  • Top mounting & side mounting options.
  • Minimum and maximum fail safe field selectable.
  • Single point/multipoint/pump-control switching.
  • Process temperature max 200 ºC.
  • Process pressure max. 3 bar.


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