Fluke PRV240 proving unit

The Fluke PRV240 proving unit is designed to reduce the risk of shock and arc flash by providing a known voltage in a controlled, low-current state in accordance with safe work practices. The unit provides a safe method for Test Before Touch (TBT) verification of electrical test tools without placing the technician in potentially hazardous electrical environments, which would generally involve using known live voltage sources.

The pocket-sized device sources 240 V of both AC and DC steady-state voltage for testing of both high- and low-impedance multimeters, clamp meters and two-pole testers, eliminating both the need for multiple verification tools and the use of a known high-energy voltage source for test instrument verification.

To avoid accidental contact, the voltage is supplied through recessed contacts that are activated only when test probes are inserted into the module’s insulated access points. A single LED indicates the sourcing of the voltage to verify the test tool, simplifying test tool verification without the need for personal protective equipment.

The proving unit can perform up to 5000 tests per set of four AA batteries and comes with a TPAK magnetic hanging strap for easy accessibility.