Part III Appendix
Electrical Safety Maintenance 265
Electrical safety check
6-Patient leakage current test
1) On the main panel, insert the DUT plug into the auxiliary output interface on the front panel of
the 601 PRO tester when there is no power on the output end, and then turn on the DUT.
2) Connect the applied part of the device to an available applied part terminal of the 601 PRO
tester.
3) Press 6. The patient leakage current test appears on the screen and the test begins.
4) Press PLIED PART (soft key 4) to select the required applied part leakage current.
5) Press the
corresponding soft key on the panel of the 601 PRO tester to modify the output
configurations of the tester front panel.
6) Press the print key to print the latest measurements.
Figure 2 Patient leakage current test
NOTE
Except the probe, if the device uses ECG or PCG, the patient leakage current should be tested.
If the adopted current test standard does not incorporate the DC value of the patient leak current,
or the DC option is unavailable, the measured DC value cannot be obtained through the PLIED
PART soft key.
Fail
Check whether the applied parts are damaged and replace the failed part.
Check whether the ECG or PCG is damaged and replace the failed part.
Check whether the power unit is damaged. If it partially fails, replace the corresponding part.
Check whether major cables are bent or damaged, or connected unreliably.
Test the current output on the wall. Check that the ground is good and no cable exceptions occur.
Notify the user or owner to correct related deviations. Check whether any surrounding operating
power output can be used for substitution.
Replace the probe to check whether the failure is caused by the main console.
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