Electrical Safety Inspection
A-12
ELECTRICAL SAFETY INSPECTION
7- Mains on Applied Part Leakage
OVERVIEW
The Mains on Applied Part test applies a test voltage, which is 110% of the mains voltage,
throughalimitingresistance,toselectedappliedpartterminals.Currentmeasurementsarethen
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
indicatedonthedisplay.
ThefollowingoutletconditionsapplywhenperformingtheMainsonAppliedParttest.
NormalPolarity;
ReversedPolarity
TEST PROCEDURE
Prepare
Toper
ormacalibrationfromtheMainsonAppliedParttest,pressCAL(SOFTKEY2).
1) DisconnectALLpatientleads,testleads,andDUToutletconnections.
2) PressCALtobegincalibration,asshown:
Ifthecalibrationfails, the previouslystored readings will be used until a passing calibrationhas
occurred.Also,theesc/stopkeyhasnoeffectduringcalibration.
3) Whenthecalibrationisfinished,theMainsonAppliedParttestwillreappear.
WARNING
1) A 2‐beep‐pe
‐second signal indicates high voltage present at the applied part terminals
whileacalibrationisbeingperformed.
2) Highvoltageispresentatappliedpartterminalswhilemeasurementsarebeingtaken.
Performance
1) FromtheMAINMENU,orwiththeoutletunpowered,plugtheDUTintothe601
2) Attachtheappliedpartstothe601PROappliedpartterminals.
3) AttachtheredterminalleadtoaconductivepartontheDUTenclosure.
4) Pressshortcutkey7.TheMainsonAppliedPart
testisdisplay ed.
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