- The PU690 is a compact, lightweight device that checks the functionality of 2 pole voltage indicators, particularly in environments with unreliable power sources.
- It provides a 690V AC output with a maximum current of less than 3.5mA and operates at a frequency of 50 Hz, suitable for high and low impedance instruments.
- The unit is safety rated for CAT II 750V and includes indicators for high voltage, low voltage, and low battery status.
- It operates effectively within a temperature range of -10°C to 40°C and can be stored at temperatures between -10°C and 50°C, with a maximum relative humidity of 70%.
- The PU690 is powered by six AA batteries and has a compact design, measuring 140mm x 80mm x 50mm and weighing 400g.
- Compliance with various safety and electromagnetic compatibility standards is ensured, including EN 61010-1 and EN 61326-1.
Detailed description
690V Proving Unit for Voltage Indicators
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









