GE HEALTHCARE
DIRECTION 5394227, 12 LOGIQ S8/LOGIQ E8 SERVICE MANUAL
9 - 24 Section 9-8 - Electrical Safety Tests
9-8-7 Isolated patient lead (source) leakage-lead to ground
9-8-7-1 Definition
This test measures the current which would flow to ground from any of the isolated ECG leads. The
meter simulates a patient who is connected to the monitoring equipment and is grounded by touching
some other grounded surface.
Measurements should be made under the test conditions specified in:
• 9-11 on page 9-18, or
• 9-12 on page 9-18 as applicable.
For each combination the operating controls, such as the lead switch, should be operated to find the
worst case condition.
9-8-7-2 Generic Procedure
1.) Connect Safety analyzer to wall AC power outlet.
2.) Plug the equipment under test power cable into the receptacle on the panel of the meter.
3.) Connect the ECG cable to the scanner and the Patient leads to the analyzer.
4.) Select the Patient lead leakage function on the meter.
NOTE: Consult the manufacturer’s user manual of the Safety Analyzer.
5.) Test opening and closing the ground with the scanner on and off as indicated in 9-11 or 9-12 as
applicable.
NOTE: Consult the manufacturer’s user manual of the Safety Analyzer that will be used to perform the tests.
Measurements should be made under the test conditions specified in:
• 9-11 on page 9-18, or
• 9-12 on page 9-18 as applicable.
CAUTION
Equipment damage possibility. Never switch the Polarity and the status of Neutral when the
system is powered ON. Be sure to turn the system power OFF before switching them using the
POLARITY switch and/or the NEUTRAL switch. Otherwise, the system may be damaged.
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