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Using an S14-09 Load Box to Verify the Performance of a Safety Analyzer

This application note discusses a method for confirming that earth leakage, enclosure leakage and /or patient leakage measurements within the safety analyzer are correct.  This method will determine whether the measurement circuitry in the safety analyzer is within tolerance as specified in the data sheet. It will also ensure that the device under test (DUT) will be safe and fully functional when it gets to the end user.

Leakage Current Offset

In leakage current testing, mains power is applied to the device under test (DUT) so that the resulting leakage current can be measured. This measured leakage current can be a combination of leakage current from the DUT, from the fixture and cables attaching the DUT to the test instrument, and also from the test instrument itself. The Offset capability inherent in Chroma’s Guardian Electrical Safety Analyzer 19032-P is very important because it measures the leakage current of the DUT not the leakage of the fixture, cables or the test instrument itself.

UL Standard

This application note provides an overview of UL standards.

Using A Load Box To Verify A Hipot Tester Is Working

How do you know if your hipot tester is functioning properly? Are you getting false failures or worse, false pass results? This application note demonstrates how to use a load box to verify that your hipot tester is measuring properly and that all test leads are in working condition.

Testing Filter Capacitors On Medical Devices

This application note will show how the hipot tester can be used not just as a means to check the DC Leakage Current or the Insulation Resistance, but can also be used to verify the existence and the value of a filter capacitor.

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