Arjay Engineering Ltd.

- Model 2852-OWS - Oil Water Separator & Sump Alarm



The sensing probe continuously monitors for the oil/water interface in a water filled sump or separator. It is typically used to control pumps, operate valves, or activate alarms. The 2852-OWS sensing probe monitors the capacitance field around the active probe tip. As the volume of separated oil increases in the separator or is drawn down toward the probe tip, the probe capacitance changes. This change is used to activate the relay for alarm interface and control.

  • No moving parts
  • Remote electronics via standard twisted pair
  • Explosion proof probe is standard
  • Probe is available with Intrinsically Safe option for alternative HazLoc protection
  • High corrosion resistant Teflon and stainless steel wetted parts
  • Capacitance technology responds to all oil types
  • HF capacitance technology does not foul or require routine cleaning
  • Easy calibration and control set-up
  • Remote monitor mounts away from the process for operator safety and ease of control wiring

  • Operating Temp.: -20˚C to +55˚C
  • Resolution: .007% (.07 pF at 1,000 pF)
  • Accuracy: .04% of full scale pF
  • Power Input: 12 vdc or 24 vdc or 100-240 vac +/- 10%
  • Alarm Relay: 2 x 10 amp@240 vac, SPDT, dry
  • Analog Output: 4 mA normal/20 mA alarm
  • Communication: Modbus RS-485
  • Certified: UL 61010-1, 2nd Edition
  • CAN/CSA-22.2 61010-1-4
  • IEC/EN 61010-1, 2nd Edition
  • IEC 61326-1
  • CE Declared
  • Enclosure: Type 4/IP 66 painted steel or Type 4X/IP 66 polycarbonate or SS
  • Optional: Light, buzzer, beacon

  • Probe: -60˚C to +260˚C
  • PMC: -60˚C to +55˚C
  • Approval: CSA Div 1, Class 1, Groups C,D (also available I.S. with an Intrinsic Safety Barrier at the Contol unit)
  • ABSA-CRN #0F07450.2
  • Intrinsic Safety: CSA Intrinsically Safe when ordered with Approved Barrier in Control Unit
  • Div 1, Class I, Groups A,B,C,D;
  • Class II, Groups E,F,G; Class III, Encl.Type 4
  • Wetted Parts: 316SS and Teflon

Probe materials are eligible for NACE MR-0175 Compliance

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