METRON QA-ST, User And Service Manual

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4.8 L
eak-
age
Cur-
rent
-
Lead
to
ISO
The purpose of this test is to determine the quality of isolation be-
tween the DUT chassis and all of the patient leads in series.
1. Connect all patient leads to the QA-ST starting with lead 1,
then lead 2, and so forth.
2. Connect the Kelvin Clamp to the chassis of the DUT.
NOTE: All patient leads are connected internally within the
QA-ST to the same potential.
3. Press “lead ISO”.
CAUTION: During the lead isolation test high voltage is present at
the patient lead connections. While there is a resistor in the test cir-
cuit, making the risk of dangerous shock minimal, caution should be
taken to avoid contact with the patient lead inputs or conductive ap-
plied parts during this test.
4. The results will be displayed on the LCD.
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