A-6
Test the wall outlet; verify it is grounded and is free of other wiring abnormalities. Notify
the user or owner to correct any deviations. As a work around, check the other outlets
to see if they could be used instead.
Change another probe to confirm if the fail is caused by console.
If the leakage current measurement tests fail on a new unit and if situation can not be
corrected, submit a Safety Failure Report to document the system problem. Remove
unit from operation.
If all else fails, stop using and inform the Customer Service Engineer for analysis and
disposal.
LIMITS
For CF applied parts
10μA in Normal Condition
50μA in Single Fault Condition
For BF
applied parts
100μA in Normal Condition
500μA in Single Fault Condition
A.7 Mains on Applied Part Leakage
The Mains on Applied Part test applies a test voltage, which is 110% of the mains voltage,
through a limiting resistance, to selected applied part terminals. Current measurements are
then taken between the selected applied part and earth. Measurements are taken with
the test voltage (110% of mains) to applied parts in the normal and reverse polarity
conditions as indicated on the display.
The following outlet conditions apply when performing the Mains on Applied Part test.
Normal Polarity;
Reversed Polarity
Preparation
To perform a calibration from the Mains on Applied Part test, press CAL (SOFT KEY 2).
1. Disconnect ALL patient leads, test leads, and DUT outlet connections.
2. Press CAL to begin calibration, as shown:
If the calibration fails, the previously stored readings will be used until a passing
calibration has occurred. Also, the esc/stop key has no effect during calibration.
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