GE Vivid P3, Руководство по обслуживанию

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GE H
EALTHCARE
PROPRIETARY TO GE
D
IRECTION
5344303-100, R
EVISION
3 VIVID P3 S
ERVICE
M
ANUAL
Chapter 10 Care & Maintenance 10-15
10-7-4 Grounding Continuity
Measure the resistance from the third pin of the attachment plug to the exposed metal parts of the case.
The ground wire resistance should be less than
0.2 ohms. Reference the procedure in the IEC 601-1.1.
10-7-4-1 Meter Procedure
Follow these steps to test the ground wire resistance.
1.) Turn the VIVID P3 unit OFF.
2.) Plug the unit into the meter, and the meter into the tested AC wall outlet.
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 VIVID P3 unit.Set the meter's “FUNCTION” switch to
the RESISTANCE position.
4.) Set the meter's “POLARITY” switch to the OFF (center) position.
5.) Measure and record the ground wire resistance.
CAUTION
Electric Shock Hazard. The patient must not be contacted to the equipment during this test
Figure 10-3 Ground Continuity Test