Series TR-7 Safe-T-Ground
Brand: Dwyer Instruments, LLCModel TR-7 Safe-T-Ground provides continuous monitoring of a truck’s ground connection throughout loading operations.
Static electricity is often brought in by tank trucks entering the loading area.
The Safe-T-Ground Model TR-7 instantly stops loading operations if a tank truck loses its ground.
To safeguard loading operations, the Safe-T-Ground circuit can be wired into your pump control – and to an audible alarm or signal light.
Features- Explosion-proof Housing
 - Audible Alarm and LED Status Indicators
 
Specifications
Approvals & Certifications
- UL
 
Cable Length
- 16 to 32 ft (4.87 to 9.75 m)
 - 36 to 72" (0.91 to 1.82 m)
 
Conduit Connection
- 3/4" NPT Female
 
Display
- 6-5/8" W x 10-3/8" H x 5-5/8" D
 
Electrical Connectors
- Terminal Strip - Wiring
 
Electrical Rating
- 10 A at 125 Vac
 - 60 Hz Contact Rating
 
Enclosure, Body Material
- 356-T6 Cast Aluminum Alloy
 - Polyethylene with Beryllium Copper Contact Clips - Contactor
 
Environmental Protection
- Class I, Groups C & D
 - Explosion-proof
 - Intrinsically Safe
 
Indication
- Green Indication Light
 - Red Indicating Light
 
Mounting
- 7/16" Mounting Lugs - Integrally Cast
 
Power Options
- Battery
 
Power Requirement
- 1.75 Watts - without Lights
 - 105-125 Vac
 - 220-240 Vac
 - 50/60 Hz
 - 60 Hz
 - 7.75 Watts - with Light
 
Switch Type
- DPDT - Relay
 
- Chemical
 - Oil and Gas