The Rochester S285 Coolant Level Switch is a capacitance-type level switch with no moving parts, reducing maintenance and adding to its long-service life. With a ten second delay as standard to eliminate false alarms, the S285 can also be custom built to suit your application.
Available in a variety of thread options, the S285 Coolant Level Switch also features a tiny spatial footprint, limiting tank intrusions and reducing risk of damage; the S285 is optimised for performance and longevity.
The Fozmula S285 is a capacitance-type coolant level switch designed to detect when coolant falls below or rises above a preset level. It can provide an alarm or control signal to help monitor coolant levels in tanks and equipment.
The S285 is designed for water-based liquids, including engine coolant and washer fluid, provided the liquid is compatible with the switch’s brass, PTFE, EPDM and FVMQ materials.
The S285 operates from a 9–36 VDC power supply and has a typical supply current of approximately 7 mA plus source output current.
Yes. A 10-second alarm delay is standard, helping prevent false alarms caused by coolant turbulence or movement within the tank. Custom delay settings can also be specified for particular applications.
The S285 is available with a range of BSP, NPT and metric thread connections, making it suitable for different tank and equipment installations. Custom configurations may also be available depending on the application.
For high accuracy, the S285 is ideally installed horizontally at the required alarm or control level. It can also be installed vertically, depending on the application. The switch is suitable for both earthed metal tanks and isolated plastic tanks.
Hard-to-find valves and equivalents
Overhaul, calibration & on-site testing
Meets Australian & international standards
