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Darcy Universal Tank Alarm Set | Separator Alarm
Direct Drainage Reviews

The Darcy Universal Tank Alarm set is ideal for new separator/ interceptor systems on sites or where mains supply is readily and easily available making installation efficient and cost effective. 


  • The unit continuously checks for the presence of oil at the probe by measuring conductivity.
  • The probe is normally submersed in water and the LED on the unit will be green.
  • When there is a sufficient build-up of oil at the surface that covers the conductivity probe, a sounder inside the unit sounds intermittently and the LED on the unit turns red. The LED will remain red until the probe detects water once again.


  • Enclosure: IP66/67
  • Dimensions: 180 x 130 x 60mm
  • Supply voltage: PCB link selectable between 115V/230V AC 50/60Hz.
  • Input: Single input to monitor float or conductivity oil probe
  • Output: Single relay output.
  • Volt-free SPDT contacts Delay of 2 seconds before relay is de-energised when oil is detected
  • Audible warning: beeper sounds when oil or air is detected
  • ATEX for intrinsic safety as associated apparatus according to BS EN 60079-11
  • Specific Marking of Explosion Protection: Ex II (1) G [Ex ia Ga] IIB (-20°C ≤ Ta ≤ +50°C)

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