Intrinsically Safe Controls
Intrinsically Safe Duplexer
The Intrinsically Safe Duplexer ISD, is a low cost, intrinsically safe duplex ISD pump controller for water and wastewater lift station applications. The controller's (4) intrinsically safe float switch inputs allow safe handling of float switches by lift station personnel. The ISD Controller provides intrinsically safe circuits for use in Class I, Groups A, B, C, D Class II, Groups E, F, G and Class III - Hazardous locations.
Intrinsically Safe Relay
The Intrinsically Safe Relay ISR provides a safe and reliable method of load control when interfaced with a contact closure in a hazardous location. When the control switch input is closed between pins 1 and 8, the output relay becomes energized, and the LED is illuminated. When the control switch input is open, the output relay is de-energized, and the LED is turned off. It provides intrinsically safe circuits for use in Class I, Groups A, B, C, D Class II, Groups E, F, G and Class III - Hazardous Locations. The socket is included with the Intrinsically Safe Relay.
Intrinsically Safe Barrier
The ISB10 provides an intrinsically safe barrier ISB between a 10 channel conductance probe in a hazardous location and pump controls in a non-hazardous area. The barrier is designed to allow the level sense signal (±12V square wave) from the pump control device to pass through unchanged. If an accident or malfunction occurs in the control panel that would potentially connect spark-inducing energy to the probe wiring in the wet well, the barrier clamps to limit the voltage and current to a safe level. The barrier has a fuse in each channel that is capable of disconnecting the barrier from a high energy source that may be present in the control panel.