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HLS-2 Oil/Water High Level Sensor

Oil/Water High Level Sensor [HLS-2]

Ronan Engineering抯 Model HLS-2 Custom Oil/Water High Level Sensor is designed to monitor fluid levels within oil/water separators. Constructed of stainless steel or brass, PVC, polysulfone, nitrile and beryllium copper, the HLS-2 Sensor will provide years of trouble-free service.

The HLS-2 is installed into the primary tank to provide discrete indications of high oil level and high water levels. Liquid levels sufficient to move the sensor抯 float will transmit a signal to the control panel to initiate control functions or annunciate alarms.

Typical applications for the HLS-2 are oil/water separator high level sensing, and high level/overfill monitoring.


  • Custom Lengths
  • Variety of Materials
  • 1/8" NPT to 2" NPT Mounts
  • 3-5/8" Flange Mount
  • Custom S.G.
  • One to Six Discrete Level Points

The HLS-2 is available with a fixed or adjustable mounting for easy periodic testing or future adjustment. The sensor is installed through an available bung at the tank top. The HLS-2 may be supplied with a variety of logic configurations and for a variety of liquid densities. The standard HLS-2 is supplied with N.C. logic for fail-safe operation.


  • Wetted Parts: Stainless steel or brass; polypropylene, polysulfone, nitrile, beryllium copper, PVC
  • Mounting: 1/8" to 2" NPT male or 3-5/8" flange
  • Switch Rating: SPST or SPDT, 20VA, 120-240Vac pilot duty
  • Operating: -40篎 to +300篎 maximum Temperature: (determined by float material)
  • Float S.G.: 0.51 to 0.88
  • Pressure: 500 psi maximum (determined by float material)
  • Cable: Polymeric jacket wire pairs, 24" (18AWG 1-2 points, 22AWG 3-6 points)

Specifications are subject to change without notice. Contact Ronan Engineering to verify critical specifications

Related Support Material : Oil/Water High Level Sensor
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