Mindray DC-68, Service Manual

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Electrical Safety Inspection A-9
ELECTRICAL SAFETY INSPECTION
6-
Patient Leakage Current
OVERVIEW
Patient leakage currents are measured between a selected applied part and mains earth. All
measurements may have either a true RMS or a DC-only response.
TEST PROCEDURE

Prepare
Perform a calibration from the Mains on Applied Part menu.
The following outlet conditions apply when performing this test:
Normal Polarity, Earth Open, Outlet ON Normal Polarity, Outlet ON
Normal Polarity, L2 Open, Outlet ON Reversed Polarity, Outlet ON
Reversed Polarity, Earth Open, Outlet ON Reversed Polarity, L2 Open, Outlet ON

Warning
If all of the applied parts correspond to the instrument type, the applied parts will be tied
together and one reading will be taken. If any of the applied parts differ from the instrument type, all
applied parts will be tested individually, based on the type of applied part. This applies to Auto and
Step modes only.

Perform the Test
1) From the MAIN MENU, or with the outlet unpowered, plug the DUT into the 601PRO front
panel outlet, and turn on the device.
2) Attach the applied parts to the 601PRO's applied part terminals.
3) Press shortcut key 6. The Patient Leakage test is displayed, and the test begins immediately.
4) Press APPLIED PART (SOFT KEY 4) at any time to select the desired applied part leakage
current.