Fluke PRV240FS Proving Unit

Fluke PRV240FS Proving Unit

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Fluke PRV240FS Proving Unit designed for safety and compliance. Verify your test tool without unnecessary exposure to shock and arc flash. Using the PRV240FS reduces the need for personal protective equipment (PPE) when a known voltage source is not available for verification of your tester or multimeter before tests are performed. Additionally, the PRV240FS also provides ac and dc voltages for other HiZ instruments in your toolbox.
A single switch and a set of LEDs indicate functionality of both the FieldSense “no-test-lead” voltage measurement capability, plus standard ac and dc measurements with test leads. This unit is a simple-to-use solution for complying with TBT verification of your test tools.


Specifications: Fluke PRV240FS Proving Unit

Output voltage

240 V ac rms or dc

± 10 % ≥ 1 MΩ

LED power indicator

Turns on when the output voltage is present


4 x AA Alkaline batteries NEDA 15 A IEC LR6

Battery life

1100 (10-second duration) test cycles with >1 MΩ load

Operating temperature

-10 °C to +50 °C

Operating humidity

0 % to 90 % (0 °C to 35 °C)

0 % to 70 % (35 °C to 55 °C)

Operating altitude

2000 m


11.7 cm x 7.4 cm x 4.5 cm (4.6 in x 2.9 in x 1.75 in)


0.32 kg (12 oz) includes batteries


IEC61010-1, IEC61010-2-030



Electromagnetic Compatibility (EMC)

IEC 61326-1: Controlled Electromagnetic Environment
CISPR 11: Group 1, Class A
Group 1: Equipment has intentionally generated and/or uses conductively-coupled radio frequency energy that is necessary for the internal function of the equipment itself.
Class A: Equipment is suitable for use in all establishments other than domestic and those directly connected to a low voltage power supply network that supplies buildings used for domestic purposes. There may be potential difficulties in ensuring electromagnetic compatibility in other environments due to conducted and radiated disturbances.
Caution: This equipment is not intended for use in residential environments and may not provide adequate protection to radio reception in such environments.
Emissions that exceed the levels required by CISPR 11 can occur when the equipment is connected to a test object.


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)
Class A: Equipment meets requirements for industrial 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.

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.

Key Features: Fluke PRV240FS Proving Unit

  • Reduce your risk of shock and arc flash by validating the functionality of test tools without placing yourself in a potentially hazardous electrical environment.
  • Prove functionality of the FieldSense measurement on the T6 electrical testers
  • Source both ac and dc steady-state voltage (supplies 240 V dc/ac).
  • Compatible with high impedance multimeters or clamp meters.
  • Voltage is sourced through a central hub designed to test the T6 FieldSense open fork, as well as through recessed contacts that are activated when test probes are inserted to avoid accidental contact
  • Includes TPAK magnetic hanging strap
  • Long battery life—2000 tests per set of four AA batteries (10-second test average)
  • SAFETY RATING: IEC61010-1, IEC61010-2-030