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![Metrohm HVP03 Proving Unit](https://images.findtheneedle.co.uk/findtheneedle/products/17296201.jpg)
In addition to the self test facility on the HVD, an external battery operated proving unit is available to check the completely assembled kit (threshold voltage dependent)
Output Voltage: 1100v P to P +100v into a 20MOhm load.
For more information on Metrohm HVP03 Proving Unit talk to Cuthbertson Laird Group
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