Probe Leakage Current Test - GE Vivid T8 Basic Service Manual

10-7-6 Probe leakage current test

DANGER
CAUTION
10-7-6-1 Definition
NOTE:
10-7-6-2 Tools
Vivid T8/Vivid T8 Pro – Basic Service Manual
5718826-100 English Rev. 10
DO NOT USE THE PROBE IF THE INSULATING MATERIAL
HAS BEEN PUNCTURED OR OTHERWISE COMPROMISED.
INTEGRITY OF THE INSULATION MATERIAL AND PATIENT
SAFETY CAN BE VERIFIED BY SAFETY TESTING
ACCORDING TO IEC60601-1.
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.
This test measures the current that would flow to ground from
any of the probes through a patient who is being scanned and
becomes grounded by touching some other grounded surface.
Some leakage current is expected on each probe, depending 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. It is abnormal if no
leakage current is measured. If no leakage current is detected,
check the configuration of the test equipment.
For needed tools, see:
Electrical safety tests
10-5 'Tools required' on page 10-8.
10-27