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Yellow Fluke PRV240 proving unit 240 V pocket source

Fluke

Fluke PRV240 Proving Unit 240 V Test

SKU CH-K48G-2M7AH MPN PRV240

A pocket-sized, battery-powered 240 V source that verifies test tools safely before live measurements

  • Verifies test tool operation safely with 240 V source
  • Reduces shock and arc flash exposure during validation
  • Single LED shows functionality for simple TBT compliance
  • Works with high and low impedance meters and testers
  • Recessed contacts activate only when probes are inserted

Pocket-Sized Proving Unit

The Fluke PRV240 is a portable, battery-powered voltage source that delivers a stable 240 V AC and DC output. It allows electricians and technicians to verify that multimeters, clamp meters or two-pole testers are functioning correctly before approaching live circuits. The unit fits in a pocket and uses recessed contacts that activate only when test probes are inserted. A single LED confirms operation for quick test-before-touch compliance.

Suited For Verification Tasks

This tool suits professionals who need to confirm instrument accuracy on both high and low impedance devices without exposing themselves to arc flash hazards. It is not intended for users who require adjustable voltage levels or continuous output for calibration procedures. The fixed output covers basic functional checks but cannot replace a variable source for detailed meter calibration or troubleshooting varying supply conditions.

Stable Output Under Load

The unit maintains a steady 240 V reference while probes are engaged, giving a reliable indication of tool health during the verification step. Because it is battery powered, output consistency depends on cell condition rather than mains quality. Extended or repeated use will deplete the batteries, so the LED should be monitored to ensure the source remains within tolerance throughout a testing session.

Highlights

  • Verifies test tool operation safely with 240 V source
  • Reduces shock and arc flash exposure during validation
  • Single LED shows functionality for simple TBT compliance
  • Works with high and low impedance meters and testers
  • Recessed contacts activate only when probes are inserted

Specifications

BrandFluke
Shipping weight0.25 kg
Package size160 × 94 × 38 mm

Questions about this item

What type of test tool do I need to verify with the PRV240's 240 V source?

The PRV240 works with high or low impedance multimeters, clamp meters, or two-pole testers that accept AC and DC voltage inputs.

Will the PRV240 safely verify my older analogue multimeter?

Yes, the unit sources stable AC and DC voltage compatible with both low and high impedance instruments, including legacy analogue meters.

How do I confirm the PRV240 is working correctly after inserting the probes?

A single LED on the unit illuminates when the recessed contacts are activated by the probes, indicating the 240 V source is active.

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