JACKSON, N.J.—Newson Gale Inc. has unveiled a tester that will show if hoses are safely grounded to vehicles during potentially dangerous transferring operations.
The OhmGuard hose-continuity tester is designed to ensure a string of assembled hoses are safely grounded to the transferring vehicle during transfers that may produce potentially combustible gas, vapor or dust atmospheres, the company said.
The operator first must securely ground the vehicle, then assemble and connect the required number of hose sections. The OhmGuard tester is attached to the free coupling or nozzle of the last hose connection and to a confirmed grounding point on the vehicle. If the total electrical resistance through the string of hoses is below the accepted standard of 100 ohms for multisegment hoses, a green light will pulse continuously. If there is a break in the continuity, the pulsing will stop, warning of the danger.
The instrument is North American-ertified in classes I, II and III.