GE Medical Systems LOGIQ ?200, Руководство по обслуживанию, Страница: 202 / 212

GE MEDICAL SYSTEMS
LOGIQ 200 SERVICE MANUAL
2138853
PERIODIC MAINTENANCE 7–8
REV 3
7–3–3 Chassis Leakage Current Test (Continued)
Meter Procedure
Follow these steps to test the unit for leakage current.
1. Turn the LOGIQ 200 unit OFF.
2. Plug the unit into the meter, and the meter into the tested AC wall outlet (Refer to ILLUSTRATION 7–4).
Chassis
Cable
Clamp
Functions
Selector
Neutral
Open /closed
Outlet Test
Lamps
Normal
Reverse
Polarity
ÍÍ ÍÍ
ÍÍ
AC
outlet
Power
On/Off
Power
Cable
GROUND AND CHASSIS LEAKAGE CURRENT TEST
ILLUSTRATION 7–4
3. Plug the black chassis cable into the meter’s ”CHASSIS” connector and attach the black chassis cable clamp
to an exposed metal part of the LOGIQ
200 unit (Refer to ILLUSTRATION 7–4).
4. Set the tester’s ”FUNCTION” switch to CHASSIS position.
5. Follow the test conditions described in the following table for every test point on the unit.
TABLE 7– 1
CHASSIS LEAKAGE CURRENT TEST CONDITIONS
TEST CONDITION
1 Mounting screw for transducer receptacle
2 Wheel support
3 Mounting screw for CRT housing
4 Mounting screw for peripheral plugged into unit
5 Mounting screw for other peripheral powered by unit
6. Keep a record of the results with other hard copies of PM data kept on site.