Covidien Force FX, Руководство по обслуживанию

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Confirming Outputs
Setup, T
ests, and Adjustment
Force FX Electrosurgical Generator C Service Manual
5-23
Checking Low Frequency Leakage Current and Ground
Resistance
Check the low frequency leakage current and ground resistance before returning the
generator to clinical use.
Equipment required
• DVM
• Leakage current tester
Leakage current test circuit per IEC 60601-1
Output Receptacles and REM Source Current
1.
Set the DVM to AC volts (200 millivolts [mV]) and connect the leakage current test
circuit.
2.
Turn on the generator.
3.
Measure between all the output receptacles (including the Patient Return Electrode
receptacle) and earth ground. Record the largest reading.
4.
Determine the leakage current using the conventional 1 microamp (µA) per 1 mV.
5.
Verify under normal conditions (ground closed, normal polarity) the leakage current is
less than 10 µA. If the leakage current is greater than 10 µA, call the Covidien Service
Center.
6.
Verify single fault conditions (ground open) the leakage current is less than or equal
to 50 µA. If the leakage current is greater than 50 µA, call the Covidien Service
Center.