Can be used with a variety of loading operations including tank trucks, rail tank cars, aircraft refuelers, and tanks to ensure that transport vehicles are properly tied to ground before and during the loading operation
The ST-47 Static Ground Proving system continuously monitors the ground connection and if that connection is lost the ST-47 will non-permit
For stand-alone ground verification without overfill prevention, choose the junction box with choice of Scully ground proving plug or grounding clamp
For static ground verification in conjunction with your Scully Overfill Prevention system, wire the ST-47 through your Overfill Prevention Control Monitor and plug and cable for one quick overfill protection and static ground/earth proving connection
Direct grounding/earthing tie-in point at loading rack is available
Ordering Information
Control Units
The ordering information below is for FM and FMC approved units. For International ATEX approved ST-47C models see datasheets above in Tech Specs.
Part #
Model #
Description
08508
ST-47-115 EL
Groundhog Control Monitor with Lamps (115 VAC)
08220
ST-47-115 ELK
Groundhog Control Monitor with Lamps and Bypass Key Switch (115 VAC)
08675
ST-47-240 EL
Groundhog Control Monitor with Lamps (240 VAC)
08502
ST-47-240 ELK
Groundhog Control Monitor with Bypass Key Switch (240 VAC)
Sculcon Junction Box w/Scully Grounding Plug
The ordering information below is for FM and FMC approved units. For International ATEX approved ST-47C models see datasheets above in Tech Specs.
Part #
Model #
Description
08249
SC-47
Heavy-Duty Junction Box, with 20′ straight cable and ground proving plug for connection to vehicle-mounted ground proving ball (independent system)
08567
SC-47CC
Heavy-Duty Junction Box, with 32′ coiled cable and ground proving plug for connection to vehicle-mounted ground proving ball (independent system)
08653
SC-47CC/D
Heavy-Duty Junction Box, with 32’ coiled cable and ground proving plug with additional circuitry for deadman switch; aviation applications