GE HEALTHCARE
DIRECTION 5394227, 12 LOGIQ S8/LOGIQ E8 SERVICE MANUAL
9 - 22 Section 9-8 - Electrical Safety Tests
9-8-5 Chassis leakage current test
9-8-5-1 Definition
Also known as Enclosure Leakage current test, this test measures the current that would flow through
a grounded person who touches the accessible conductive parts of the equipment during normal and
fault conditions.
The test verifies the isolation of the power line from the chassis. The testing meter is connected to parts
of the equipment, easily contacted by the user or patient.
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.
Record the highest reading.
9-8-5-2 Generic Procedure
The test verifies the isolation of the power line from the chassis.
The testing meter is connected from accessible metal parts of the case to ground.
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.
Record the highest reading.
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 meter to an accessible metal surface of the scanner using the cable provided with the
meter.
4.) Select the Chassis or Enclosure 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.
The maximum allowable limit for chassis source leakage is shown in:
• 9-11 on page 9-18, or
• 9-12 on page 9-18 as Chassis/Enclosure Leakage.
CAUTION
Electric Shock Hazard. When the meter's ground switch is OPEN, don't touch the Ultrasound
system!
CAUTION
Equipment damage possibility. Never switch the Polarity and the status of Neutral when the
Ultrasound system is powered ON. Be sure to turn the Ultrasound system power OFF before
switching them using the POLARITY switch and/or the NEUTRAL switch. Otherwise, the
Ultrasound system may be damaged.
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