Fluke PRV240 Proving Unit

Fluke PRV240 Proving Unit is rated 5.0 out of 5 by 2.
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  • Fluke PRV240 Proving Unit
  • Fluke PRV240 Proving Unit with supplied TPAK hanging strap
  • Fluke PRV240 Proving Unit with TPAK for use on any ferrous surface
  • PRV240 proving unit allows you to “Test Before Touch”
  • The PRV240 provides safe verification your test tool is operating properly

Key features

  • Validate test tool functionality outside of hazardous zones
  • Supplies 240 V, both DC and AC
  • Compatible with both high or low impedance test tools

Product overview: Fluke PRV240 Proving Unit

The Fluke PRV240 Proving Unit is a portable, pocket-sized, battery-powered voltage source. It is unique because it sources stable AC and DC voltages for both LoZ and HiZ instruments.

The Fluke PRV240 provides a safe method to verify that your electrical test tool is operating properly before and after you conduct any live tests. The concept of “Test Before Touch” (TBT) involves testing your meter against a known live source before and after the actual measurement. This sequence verifies that your test tool is operating properly through the actual measurement.

Product highlights

A single LED on the PRV240 indicates functionality, making this unit a simple-to-use solution for complying with TBT verification of your test tool. Voltage is sourced through recessed contacts that are activated when tested probes are inserted to avoid accidental contact. The proving unit also offers:

Long battery life—5,000 tests per set of four AA batteries

Includes TPak™ Magnetic Hanging Strap

Designed for safety and compliance

Using the PRV240 reduces the need for personal protective equipment (PPE) when a known voltage source is not available for verification of your tester or multimeter, so a TBT is performed. PPE is still needed for absence of voltage testing when appropriate.

What's in the box:

  • Fluke PRV240 Proving Unit
  • TPAK hanging strap
  • Four AA batteries
  • Quick reference guide

Specifications: Fluke PRV240 Proving Unit

General Specifications
Output voltage240 V ac rms or dc± 10 % ≥ 1 MΩ
 LoZ >3 kΩ load60 V ac typical
50 V ac rms minimum
LED power indicatorTurns on when output voltage is present
Battery4 AA Alkaline batteries NEDA24 A IEC LR03
Battery life5000 (5-second duration) test cycles with >1 MΩ load, 300 tests minimum with >3 kΩ load
Operating temperature-10 °C to +50 °C
Operating humidity0 % to 90 % (0 °C to 35 °C)
0 % to 70 % (35 °C to 55 °C)
Operating altitude2000 m
Dimensions11.7 cm x 7.4 cm x 2.8 cm (4.6 in x 2.9 in x 1.1 in), Pollution Degree 2
Weight0.23 kg (8 oz) includes batteries
SafetyIEC61010-1, IEC61010-2-030
Compatibility (EMC)
IEC 61326-1Portable EM environment; CISPR 11, Group 1, Class A
US (FCC)47 CFR 15 subpart B, this product is considered an exempt device per clause 15.103
Korea (KCC)Class A Equipment (Industrial Broadcasting & Communication Equipment)
This product meets requirements for industrial (Class A) electromagnetic wave equipment and the seller or user should take notice of it. This equipment is intended for use in business environments and not to be used in homes.

Models: Fluke PRV240 Proving Unit

PRV240 Proving Unit
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  • TPAK hanging strap
  • Four AA batteries
  • Instruction sheet

What is the maximum current output that this unit is capable of producing? I'm asking because I'm wondering what the potential shock hazard to someone using this unit could be. Is insulated PPE required while using this device since it is >50V?

Asked by: General Roper
No, PPE is not required when using the Fluke PRV240 Proving Unit.
Answered by: FlukeCorporation
Date published: 2024-05-13
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Rated 5 out of 5 by from Be safe...prove it! If you're going to trust your life to your meter...prove it! Nothing like being able to take your known good source with you.
Date published: 2021-01-10
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