Voltmanbucks
New Member
Hi I am volunteer at a Charity in High Wycombe called Central Aid. We PAT test white goods inclding electric cookers. The elements would often fail a PAT but need to be thermally conditioned by running for up to 30 minutes to remove moisture from the internal element insulation and reduce leakage current.
To do this we have a current leakage tester , the leakage is given by measuring a voltage across a resistor and converting that to leakage current in mA.
The voltage is shown on multimeter and ranges about 0-500mV. I observe the output for every element recording initial voltage, peak and ultimate stable value. The test can take over an hour for each appliance!
The voltage varies wildly in that range and can show a range of peaks before stabilising,
My question is would a budget multimeter oscilloscope record each test for me, voltage versus time in minutes, graphically in my absence so I can do other tasks?
And if so which make and model please?
Kind regards
Ian
To do this we have a current leakage tester , the leakage is given by measuring a voltage across a resistor and converting that to leakage current in mA.
The voltage is shown on multimeter and ranges about 0-500mV. I observe the output for every element recording initial voltage, peak and ultimate stable value. The test can take over an hour for each appliance!
The voltage varies wildly in that range and can show a range of peaks before stabilising,
My question is would a budget multimeter oscilloscope record each test for me, voltage versus time in minutes, graphically in my absence so I can do other tasks?
And if so which make and model please?
Kind regards
Ian