Proving Unit Testers PU690
It is a good practice to check if two pole voltage detectors are functioning correctly on a known voltage source, both before and after they have used to verify that a circuit is not live.The PU690 enables you to prove your 2 pole voltage indicator by supplying a 690V AC voltage to the two input terminals. With the inbuilt load of 200k ohms, at 690V the current is limited to 3.5mA.In addition the PU690 is also is also suitable to prove High and Low Impedance devices such as multimeters and clamps.
PU690 Key Features:
* 690V AC Output
* High/Low Impedance
* Low Battery Indication
* CAT II 750V Safety Rated
Is safe Isolation part of your testing regime?
Adequate precautions shall be taken to prevent electrical equipment, which has been made dead in order to prevent danger while work is carried out on or near that equipment, from becoming electrically charged during that work if danger may thereby arise.