Fluke PRV240 Voltage Indicator Proving Unit 240V ac/dc

Fluke Proving Unit, 240V Output Voltage, Battery Power Source - PRV240

This proving unit is a pocket-sized, battery-powered voltage source designed to provide a known live voltage for verifying electrical test instruments before live measurements. It supplies a steady 240V output for both alternating and direct measurements and is intended to reduce unnecessary exposure when confirming meter functionality in industrial and field environments.

Features & Benefits

• Sources 240V ac or dc to validate instrument response under load
  Compatible with high and low impedance testers for broad instrument coverage
  Recessed contact activation prevents accidental contact during test connection
  Single LED indicates presence of output voltage for Rapid confirmation
  Battery operation enables 5,000 five-second test cycles per battery set
  Magnetic hanging strap included to secure unit during hands-free checks

**Applications**

• Suitable for pre-checks of multimeters in electrical maintenance routines
  Ideal for field verification of clamp meters and two-pole testers
  Used with industrial automation measurement equipment for on-site validation
  Can be used for commissioning checks in mechanical and electrical installations

What battery type does it use and how many tests can I expect?

It operates on four AA alkaline cells and provides around 5,000 five-second test cycles with a high-impedance load
load-dependent minimum cycles are specified for lower impedance.

How does it behave with low-impedance instruments?

Under greater than 3 kΩ load conditions the unit supplies a reduced ac Value typical of 60V and a minimum of 50V ac rms to simulate low-impedance responses.

What environmental conditions can it withstand during use?

It functions between -10 °C and +50 °C, with defined humidity limits varying by temperature and an operational altitude up to 2,000 m.

How is the voltage presented to probes to improve safety?

Voltage is delivered through recessed contacts that only energise when probes are inserted, reducing the risk of accidental contact.