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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
1 - 12 of 16 Part Numbers
TR-7
- Power Supply - 120 Vac (Standard)
- Cable Connection - Stud (Standard)
- Cable Length - 36” Coiled, Extends to 16´ (Standard)
- LED Options - No LED
TR-7-B
- Power Supply - 120 Vac (Standard)
- Cable Connection - Battery (Alligator) Clamp
- Cable Length - 36” Coiled, Extends to 16´ (Standard)
- LED Options - No LED
TR-7-BL
- Power Supply - 120 Vac (Standard)
- Cable Connection - Battery (Alligator) Clamp
- Cable Length - 36” Coiled, Extends to 16´ (Standard)
- LED Options - Red & Green Indicating Lights
TR-7-BX
- Power Supply - 120 Vac (Standard)
- Cable Connection - Battery (Alligator) Clamp
- Cable Length - 72” Coiled, Extends to 32”
- LED Options - No LED
TR-7-BXL
- Power Supply - 120 Vac (Standard)
- Cable Connection - Battery (Alligator) Clamp
- Cable Length - 72” Coiled, Extends to 32”
- LED Options - Red & Green Indicating Lights
TR-7L
- Power Supply - 120 Vac (Standard)
- Cable Connection - Stud (Standard)
- Cable Length - 36” Coiled, Extends to 16´ (Standard)
- LED Options - Red & Green Indicating Lights
TR-7U
- Power Supply - 220 / 240 Vac
- Cable Connection - Stud (Standard)
- Cable Length - 36” Coiled, Extends to 16´ (Standard)
- LED Options - No LED
TR-7U-B
- Power Supply - 220 / 240 Vac
- Cable Connection - Battery (Alligator) Clamp
- Cable Length - 36” Coiled, Extends to 16´ (Standard)
- LED Options - No LED
TR-7U-BL
- Power Supply - 220 / 240 Vac
- Cable Connection - Battery (Alligator) Clamp
- Cable Length - 36” Coiled, Extends to 16´ (Standard)
- LED Options - Red & Green Indicating Lights
TR-7U-BX
- Power Supply - 220 / 240 Vac
- Cable Connection - Battery (Alligator) Clamp
- Cable Length - 72” Coiled, Extends to 32”
- LED Options - No LED
TR-7U-BXL
- Power Supply - 220 / 240 Vac
- Cable Connection - Battery (Alligator) Clamp
- Cable Length - 72” Coiled, Extends to 32”
- LED Options - Red & Green Indicating Lights
TR-7UL
- Power Supply - 220 / 240 Vac
- Cable Connection - Stud (Standard)
- Cable Length - 36” Coiled, Extends to 16´ (Standard)
- LED Options - Red & Green Indicating Lights
1 - 12 of 16 Part Numbers
Specifications
Brand
Approvals & Certifications
- UL
Cable Length
- 16 to 32 feet (4.87 to 9.75 metres)
- 36 to 72” (0.91 to 1.82 metres)
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