Exloc Instruments coporate logo
Exloc Instruments: your one-stop-shop for instruments and electrical equipment for use in hazardous classified locations.
Saving you time & money solving challenging problems!
Static Control System for Safe Road Tanker Loading in Hazardous Locations
Earth-Rite RTR™
with tri-mode sensing
Mark of CSA approvalfor the U.S. and Canada.
  • Verifies tanker type personality
  • Confirms good static ground connection before connecting tanker
  • Monitors low resistance static path from tanker to ground during loading
  • Provides interlock control contact
  • Red/green LED status indication
  • Meets NFPA 77 recommended practice
  • Intrinsically safe sensing circuit
  • CSA U.S. and Canadian approvals
  • ATEX, IECEx certification
  • Easy to install & operate
Mark of certification to ATEX Directive 94/9/EC
Mark of certification to IECEx standards.
Illustration of a road tanker hooked up to an Earth-Rite RTR tri-mode static grounding system.
Earth-Rite RTR is the most advanced Tanker Truck Grounding System for protecting personnel and plant assets from static discharge hazards during loading & offloading operations. Tri-mode sensing insures that product transfer can only commence and be sustained when three key provisions are met.

Mode 1 • Tanker Truck Personality Recognition
Confirms RTR clamp is correctly connected to the tanker itself—not falsely connected to other conductive metal objects such as the loading gantry or other parts of the truck not bonded to the container.

Mode 2 • Static Ground Verification
Confirms RTR clamp is connected to a verifiable static dissipative grounding point.

Mode 3 • Continuous Ground Loop Monitoring
Confirms clamp connection and ground connection is good throughout the transfer process by insuring loop resistance does not exceed 10Ω.

Operator friendly interface provides GO / NOGO indication when the tanker is correctly grounded. Bright pulsating green LEDs are activated during the MODE 3 continuous ground loop monitoring stage.

Control / Interlock capability includes two relay contacts for pump, valve, and PLC control integration, plus connection to devices such as strobe lights and horns confirming transfer is under way.

Compliance with NFPA77 and CENELEC CLC/TR: 50404 to insure less than 10Ω ground loop resistance.

Hazardous location approvals includes CSA for the U.S. and Canada, compliance with the ATEX Directive for use in the European Community, and certification to IECEx standards for other international users.

Earth-Rite RTR™ Basic Specification
Approvals & Certification CSA US & Canada "Division Approval": Cl I Div 1 Grps A-D; Cl II Div 1 Grps E,F,G; Cl III Div 1
CSA US "Zone Approval": Class I, Zone 1, AEx d(ia) IIC T4; Class II, Zone 21, A21, IP66, T80C
CSA Canada "Zone Approval": Class I, Zone 1, Ex d(ia) IIC T4; DIP A21, IP66, T80C
ATEX/IECEx:
Ex d[ia] IIC T6 Gb(Ga), Ex tb IIIC T80C IP66 Db, Ta= -40C to +55C
Clamps Body material: 304 stainless steel
Contact points: two, tungsten carbide
Body length: 9"/235mm
Cable Hytrel coated spiral dual conductor cable, fitted with in-line quick-connects.
Monitored Resistance 10 ohms upper limit.
Status Indication Red / green LED indication.
Power Supply AC powered version: 110/120V or 220/240V AC 50-60 Hz
DC powered version: 12V or 24V DC
Output Relay Contacts Two voltage free change-over switch contacts, 250VAC, 5A, 500VA max. resistive load
Monitor Weight 9.9 lbs / 4.5 Kg
Enclosure Materials Monitor: copper-free cast aluminum
Clamp Stowage Point: carbon loaded GRP
Ingress Protection IP66 / NEMA 4X/7/9
Ambient Temperature -13°F to +122°F / -40°C to +55°C
Options Self retracting cable reel. Ask about additional flashing beacons/strobes and alarm sounders.
Earth-Rite RTR™ Available Models
CSA version for US/Canada:
Model RTRMUA1A3
Earth-Rite RTR™ Tri-Mode Static Grounding System, selectable 110/120 VAC or 220/240VAC, including heavy duty grounding clamp, 32 ft / 10m spiral cable and GRP clamp stowage point.
ATEX & IECEx version:
Model RTRMEA1A3A
Earth-Rite RTR™ Tri-Mode Static Grounding Unit - ATEX IIC, 220/240Vac ±10% including Heavy Duty grounding clamp, 10m retractable spiral cable, GRP clamp stowage box and operator instruction board.
Bond-Rite RTR™ Options
Model VESM02 Retractable Cable Reel with 50 ft / 15m of 2 conductor Hytrel protected static grounding cable
Model RTRT Test Unit for RTR system installation, commissioning, and testing. Emulates typical tanker personality.
You may also be interested in these related products:
flashing beaconsalarm horns & sounders
multipoint static systems FIBC bag static controlself testing static control clamps, cables & systemsdissipative shoe testing stations

legal noticesite map

This page last updated 6/23/11. ©2004–2011 Exloc Instruments, Inc. All rights reserved.