The SC850 was designed to detect and control the level of all types of oils (1x SPDT relay) and also provide a separate alarm relay to detect the presence of water. Each relay has its own LED indication including a second LED for alarm status. This unique probe can be widely applied in petroleum storage tanks and is available with an explosion proof housing.
The GX comes standard with a glass window which enables visualization of LED switch status. The GX housing comes with the following certifications: UL, CUL, IECEX and ATEX for installation in hazardous environments.


Supply: AC: 100...264Vac / DC: 9...36Vdc
Consumption: +/- 70mA
Output: SPDT Relay (5A - 250Vac) Detection / SPDT Relay (5A - 250Vac) Alarm
Protection: Reverse Polarity / Voltage Surge / Electromagnetic Interference
Adjust: Sensibility (trimpot 0...100%)
Housing (Material): Aluminum or Nylon N2
Electrical Connection (Cable entry): 2 x 3/4” NPT GX / 2 x ½” NPT G2 /N2
Process Connection: BSP, NPT, Flange or Sanitary
Connection and rod Material: 316 SS / PTFE (Isolation)
Work Temperature: -10 to + 80°C (others upon request)
Max. Pressure: 50 Bar
Class Protection: IP66
Approval EXd (Optional): ATEX, DEMKO 07 ATEX 0622294 / 0539 II 2 GEX d IIC Gb / 0539 II 2 D Ex tb IIIC Db / IECEx / IECx UL 08.0005U / Ex d IIC Gb / Ex tb IIIC Db
Classification: Class I, Div. 1, Groups B, C, D / Class II, Div. 1, Groups E, F, G / Class III
NEMA 4X: Class I Zone 1 AEx d IIC / Ex d IIC (Canada)

Documentation for download

  • High level alarm
  • Low level alarm
  • Pump protection
  • Leak detection
  • Overflow alarm
  • Supply line control
  • Fill/Drain control
  • Lubricant monitoring
  • Cooling water monitoring
  • On/Off valve monitoring
  • Oil level detection

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