The Earthing Relay's primary function is to determine whether the Tank Trucks at the loading terminals are properly earthed and thereafter, provide a visual indication and a control signal for process resumption. The instrument acts as an interlock during loading and unloading operations, allowing the process to resume only after satisfactory grounding of static charge on the Tanker body or Loading Arm.

The Static Grounding System Series SGR provides safe and secure grounding of dangerous static charge to earth in hazardous area installations, ensuring safety to plant and personnel. The instrument is a certified intrinsically safe product mounted in an explosion-proof enclosure, providing a high degree of protection against fires or explosions caused by sparking.

The Earthing Relay senses the static-charge potential of the Tanker and provides a safe grounding path for this charge through a low impedance and intrinsically safe electronic module, which is itself housed in an explosion proof enclosure mounted near the loading terminal. The Earthing Relay Series SGR is certified for intrinsic safety and the enclosures for explosion-proof operations by CIMFR. The instrument is housed in a certified cast Aluminum Alloy LM6 enclosure and offered with a standard 5-metre Cable-Clamp assembly.

All ASHE range of instruments carry a lifetime warranty for design and workmanship.

The various models available in this product category are :


Model Type Input Outputs No. Of Outputs Power Supply Mounting Load Ratings Switching Time Dimensions Execution Relay Outputs Control Outputs Analog Outputs Comm Outputs No of Fans PDF
SGR-250 MicroController based Static Charge Grounding Relay with Single Probe Probe from Vehicle 2 80 to 270
VAC,
50/60 Hz
DIN Rail
SGR-250 MicroController based Static Charge Grounding Relay with Dual Probes Two Probes : from Vehicle and Loading Arm (Bonding Probe) 5 80 to 270
VAC,
50/60 Hz
DIN Rail