OhmGuard®
Intrinsically Safe Hose Continuity Tester
The OhmGuard® hose continuity tester is designed to test hoses used on vacuum trucks and tanker trucks prior to the transfer of flammable or combustible products. It verifies that the electrical conductivity of the hose is functioning correctly, ensuring static electricity is not permitted to accumulate on the metal components of the hose which will eliminate the risk of a fire or explosion caused by the discharge of a static spark.
The OhmGuard® is easy and quick to use, does not require any specialist operator training and will indicate, within seconds, if the hoses are safe to use.The driver simply connects the OhmGuard’s cable to a junction box situated on the truck and connects the OhmGuard clamp to the last hose coupling as illustrated. The green LED housed in the OhmGuard will pulse continuously if the hose has an electrical continuity of less than 100 ohms with the truck.
Typical Applications:
The OhmGuard® is easy and quick to use, does not require any specialist operator training and will indicate, within seconds, if the hoses are safe to use.The driver simply connects the OhmGuard’s cable to a junction box situated on the truck and connects the OhmGuard clamp to the last hose coupling as illustrated. The green LED housed in the OhmGuard will pulse continuously if the hose has an electrical continuity of less than 100 ohms with the truck.
Typical Applications:
- Testing vacuum truck hoses prior to spill cleanup or material recovery operations.
- Testing bulk road tanker hoses prior to the delivery of flammable products (e.g. solvents) to storage tank farms.
- General resistance testing of chemical and petrochemical compatible hoses.
- Electrical resistance testing of plant equipment.
- Spot testing of bonding assemblies and conductors in the field.
Datasheet
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Benefits
Explosion Proof enclosure: The new enclosure is a robust and lightweight (9.9 lbs) explosion proof enclosure with IP 66, NEMA 4X, 7 & 9 ingress protection rating. The LED indicators are viewed through a window that is assembled to the enclosure lid. Attention grabbing LED indicators. When a positive ground condition is established three green LEDs pulse continuously throughout the transfer process. This simple pulsing effect informs personnel that the system is continuously monitoring the condition of the ground connection. Patented Tri-Mode Technology: Ensures the system only goes permissive (permitting product transfer) when the three parameters required for safe grounding of the tanker truck are confirmed. This feature ensures the system cannot be activated by connection to parts of the tanker truck not electrically continuous with the truck's container or when the system does not detect a low resistance connection to true earth (ground). |
System Options
Earth-Rite RTR Options |
Certification
Ingress Protection IP 66 / NEMA 4X, 7 & 9. Operating Temperature Range: -13°F to +131°F Power Supply: Selectable 110/120V or 220/240V AC, 50-60 Hz. Selectable 24V or 12V DC. |
