Grounding Continuity - GE LOGIQ S7 Expert Service Manual

GE H DRAFT
EALTHCARE
D 5460683, R
IRECTION EVISION
10-8-4

Grounding Continuity

Electric Shock Hazard!
CAUTION
The patient or operator MUST NOT come into contact with the equipment during this test
!! CAUTION:
Measure the resistance from the third pin of the attachment plug to the exposed protectively - earthed
metal parts of the case. The ground wire resistance should be less than 0.2 ohms.
Reference the procedure in the IEC60601-1.
GROUND PIN
Lacquer is an isolation barrier! Resistor may be high-impedance!
CAUTION
Measure only on blank parts, stated in
!! CAUTION:
10-8-4-1 Meter Procedure
Follow these steps to test the Ground wire resistance.
1.) Turn the system 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 protectively earthed metal part of the system, such as Potential
equilibrium connector.
4.) Set the meter's "FUNCTION" switch to the RESISTANCE position.
5.) Set the meter's "POLARITY" switch to the OFF (center) position.
6.) Measure and record the Ground wire resistance. This should be less than 0.2 Ohms.
3 DRAFT (J
OHMMETER
Figure 10-16 Ground Continuity Test
Chapter 10 - Care & Maintenance
25, 2014)
UNE
Figure 10-16 above.
LOGIQ™ S7 E
XPERT
S
ERVICE
ACCESSIBLE METAL PARTS
Potential equilibrium connector
/P
RO
M
ANUAL
10-25