Earth-Rite® ll RTR Static Earthing System

Advanced Static Grounding for Road Tankers during Product Transfer.

The Earth-Rite® II RTR is a certified static earthing system engineered to safely ground road tankers during loading and unloading operations. It mitigates static electricity accumulation by confirming a verified low-resistance ground connection before product transfer begins. The patented Tri-Mode Technology detects the presence of the tanker by capacitance, verifies a true earth connection, and continuously monitors the resistance loop (<10 Ω), stopping transfer if grounding is compromised. The unit features high-visibility LED indicators and volt-free interlock contacts for process integration and safety.

Earth-Rite II RTR

Key Features

Tri-Mode Technology: Capacitance detection, earth verification, and loop resistance monitoring
Green pulsing LED confirms safe grounding condition
Failsafe interlock outputs to halt process if grounding is lost
ATEX, IECEx, NEC/CEC Zone & Division certified
SIL 2 rated for functional safety compliance
Heavy-duty dual pole stainless steel grounding clamp with tungsten carbide teeth
Available in Ex d (flameproof) and GRP (Zone 2) enclosure variants
Monitoring resistance loop threshold: ≤10 Ω (±10%)
Power: 115/230 V AC or 12/24 V DC options
Ingress Protection: IP66

Applications

Grounding of road tankers during liquid and powder transfers
Static control in hazardous zones (Zone 0, 1, 2, 20, 21, 22)
Petrochemical loading bays and chemical processing facilities
Integration into SOPs for automatic process interlocking

Technical Highlights

Monitoring Circuit: Intrinsically safe, continuous loop check at ≤10 Ω
Relay Outputs: 2x changeover contacts (250 V AC 5 A / 30 V DC 2 A)
Clamp Cable: Cen-Stat spiral, Hytrel-coated, UV- and chemical-resistant
Clamp: Dual pole, stainless steel, tungsten carbide teeth
Junction Box: GRP, with stowage pin and quick-connect system
Ambient Temp: -40 °C to +60 °C (Ex d); -25 °C to +55 °C (GRP)
Certifications: ATEX, IECEx, FM, NEC/CEC, SIL 2
Weight: Monitoring unit ~4.5 kg; GRP variant ~2 kg
Ingress Protection: IP66

System Options

Retractable Cable Reel: Self-returning reel for up to 15 m Hytrel cable (Zone 1/21 rated)
Sun Shield: Stainless steel visor for optimal LED visibility in bright conditions
Earth-Rite II RTR Tester: Simulates tanker presence and grounding loop for commissioning
Ex Strobe Light: ATEX/IECEx approved visual alert for active transfer
S. Switching PCB: Interfaces with intrinsically safe circuits (30 V DC, NAMUR compatible)
Installation Kits A, B, C: Glands, cables and terminals for Ex d and GRP variants

Ideal For

Loading bays transferring flammable or combustible materials
Sites requiring automated transfer lockout on grounding loss
SOPs requiring SIL 2 safety-rated grounding confirmation
Global compliance with IEC TS 60079-32-1, NFPA 77, API RP 2003

Contact Us

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