Last Updates: 16/02/2021

Gems Series 27 Liquid Level Control

Series 27 conductivity based liquid level control, intrinsically safe controls have SPDT output contacts and are UL approved for use in Class I, Groups A, B, C & D; Class II, Groups E, F & G; and Class III hazardous locations. Control sensitivity is factory-set. Series 27 is UL Pilot Duty rated.  CSA certified for Class 1, Groups A, B, C and D; Class II, Groups E, F and G; Class III.


  • Hazardous Atmospheres 
  • Pumps 
  • Waste Treatment 
  • Alarms 
  • Sewage 
  • CP Industry
  • Solid State Reliability 
  • Up to 100K Ohm/cm Sensitivity 
  • Internal Surge Suppression 
  • Single Level or Differential Service 

Datasheet: Gems_Series-17-27-Datasheet
Instruction Manual: Gems_27_Manual

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