The ST-15-WX control units can be mounted in any non-hazardous area and utilize oil tight controls and indicators. Internal circuitry provides intrinsically safe (I.S.) output, for probe connections. This output is rated for Class I, Div 1, Group D hazardous areas.
IEC 61508 Certified SIL2 HFT=0 SIL3 HFT=1
Refer to technical data sheet 67100
The Scully Model 15 ST-15-WX Liquid Level Detection System features individual control channels to monitor from 2 to 12 sensing sensors. The ST-15-WX offers all these advantages:
Dynacheck- automatic and continuous self-testing circuitry which monitors the controller wiring, connections and sensors for faults 30 times per second.
Signals an audible alarm and/or controls pumps and valves for automatic shutdown.
Monitors from 2 to 12 total sensing points depending on model.
Provides liquid level detection for a wide variety of petroleum and chemical products.
Uses output sensors approved as intrinsically safe for use in Class 1, Division 1, Group D hazardous environments.
Features MEMA 4 Style Watertight housings.
Works in conjunction with either Scully field-proven thermistor or Instant-ONTM optic sensors.