Di-Log Proving Unit for Voltage Testers 690v - PU690
The DiLog PU690 690V AC Proving Unit can be used to verify the functionality of two-pole voltage testers. It is compact, lightweight and particularly useful for checking two-pole voltage indicators in the field where a known source is limited or unreliable. The DiLog PU690 690V AC Proving Unit provides a 690V AC voltage output to the two input terminals. It includes an inbuilt 200kΩ load, which limits the current to 3.5mA at 690V.