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G
E
HE
ALTHCARE
D
IRECTION
5305880-100, R
EVISION
3
LOGIQ™ 100 PRO S
ERVICE
M
ANUAL
Chapter 10 - Quality Assurance
Page 10-23
Section 10-7 When There's Too Much Leakage Current...
CHASSIS FAILS
Check the ground on the power cord and plug for continuity. Ensure the ground is not broken,
frayed, or intermittent. Replace any defective part.
Tighten all grounds. Ensure star washers are under all ground studs.
Inspect wiring for bad crimps, poor connections, or damage.
Test the wall outlet; verify it is grounded and is free of other wiring abnormalities. Notify the user or
owner to correct any deviations. As a work around, check the other outlets to see if they could be
used instead.
No outlet tester can detect the condition where the white neutral wire and the green
grounding wire are reversed. If later tests indicate high leakage currents, this
should be suspected as a possible cause and the outlet wiring should be visually
inspected.
PROBE FAILS
Test the probe in another connector to isolate if the fault lies with the probe or the scanner.
Each probe will have some amount of leakage, dependent on its design. Small
variations in probe leakage currents are normal from probe to probe. Other
variations will result from differences in line voltage and test lead placement. The
maximum allowable leakage current for body surface contact probe differs from
inter-cavity probe. Be sure to enter the correct probe type in the appropriate space
on the check list.
If excessive leakage current is slot dependent, inspect the system connector for bent pins, poor
connections, and ground continuity.
If the problem remains with the probe, replace the probe.
PERIPHERAL FAILS
Tighten all grounds. Ensure star washers are under all ground studs.
Inspect wiring for bad crimps, poor connections, or damage.
STILL FAILS
If all else fails, begin isolation by removing the probes, external peripherals, then the on board ones,
one at a time while monitoring the leakage current measurement.
NEW UNIT
If the leakage current measurement tests fail on a new unit and if situation can not be corrected,
submit a Safety Failure Report to document the system problem. Remove unit from operation.
State: RELEASE - Document is released and under formal Change Control. Changes are subject to the ECR/ECO Process.
See the GEHC Myworkshop System to determine the status of this document.
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