SCULLY Static Ground Proving Controller ST-47 Groundhog™-

SCULLY Static Ground Proving Controller ST-47 Groundhog™

Vehicle Static Ground Verification System

Self-proving technology based on Scully’s original patented design
Can operate in conjunction with your Scully Overfill Prevention System (ST-35® or ST-15) or as an independent ground verification unit
Immediately shuts down the loading operation if proper static grounding is not detected

Tech Specs

Features

Static Ground Proving Controller ST-47 Groundhog

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 North America Hazloc regulation approved units. For Europe Hazloc regulation 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 North America Hazloc regulation approved units. For Europe Hazloc regulation 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

Sculcon Junction Box w/Scully Grounding Verification Clamp

Part #	Model #	Description
08815NV	ST-47CC/CLMP	Sculcon Junction Box, with grounding clamp and 32’ coiled cable
09333	ST-47/CLMP	Sculcon Junction Box, with grounding clamp and 20’ straight cable

Accessories & Replacement Parts

The ordering information below is for North America Hazloc regulation approved units. For Europe Hazloc regulation approved ST-47C models see datasheets above in Tech Specs.

Part #	Description
08274	Ground Ball, truck-mounted electronic ground proving ball for independent grounding system
08560	Ground Bolt, truck-mounted electronic ground proving bolt for wiring to overfill prevention socket
08566	Replacement Plug and 32′ Coiled Cable Assembly for SC-47
08219	Replacement Plug and 20' Straight Cable Assembly for SC-47
08565	Replacement Plug only for SC-47
09511	Module 115, replacement module for 115 VAC models
09512	Module 240, replacement module for 240 VAC models
27005	Replacement Indicator Lamp Bulb for 115 VAC Older Models 27005
09384	LED Bulb - Red LED Candelabra for 120V
09385	LED Bulb - Green LED Candelabra for 120V
27006	Bulb, 250V - Replacement Indicator Lamp Bulb for 240 VAC Models
08863	Deadman Control - Deadman Switch with Coiled Cable

For replacement parts for The Ground Verification Clamp unit, please see Ground Verification Clamp and Cable Unit data sheet.