2852-HCF Floating Oil Spill Alarm

Part Number Starting: 2852-HCF

The 2852-HCF provides reliable monitoring of sumps and containments for oil spills. The 2852-HCF uses a hydrocarbon float sensor for separated oil-on-water applications. This floating sensor monitors the surface of water in sumps, tanks, and lagoons to alert when oil has separated to the water surface. This is typically used to alert of spills or control pumps.

The 2852-HCF sensor monitors the surface dielectric and locks in on the capacitance of the water. Oil that separates to the surface changes the capacitance field and activates the relay alarms.

The 2852-HCF is typically used in sumps or containments where oil is not typically present. Normal sheens will not alarm but an upstream leak or spill that accumulates in the sump will alarm the monitor. The floating design allows the unit to track the changing water level in the sump and immediately alert operators, pumps or valves if there is an accumulation of oils.

  • Table tri-float design follows level changes
  • Adjustable time delay and sensitivity to eliminate nuisance alarms
  • Remote electronics via standard twisted pair
  • Sensor available Intrinsically Safe for Hazardous Locations
  • Waterproof PVC and SS wetted parts allow for use in harsh environments
  • Unit also alarms on dry sump conditions to shut down pumps
  • Capacitance technology responds to all types of oils and separated liquids of similar dielectrics
  • Alarms at a minimum of 2 mm surface oil, can be desensitized to 25mm oil
  • Floating sensor follows changing water levels
  • Alarms on petroleum, synthetic, and vegetable oils
  • Potted stable sensor eliminates nuisance alarms

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

Operating Temp.: 0˚ to +55˚C (optional to 141˚C)
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: PVC and 304SS

Optional sensor materials are eligible for NACE MR-0175 Compliance

2852-HCF sketch