GE Vivid S60N, Basic Service Manual

Page: 473 / 478

D
IRECTION
FR091521, R
EVISION
1 V
IVID
S60N/V
IVID
S70N B
ASIC
S
ERVICE
M
ANUAL
Chapter 10 - Care and Maintenance 10-27
P R E L I M I N A R Y
Follow these steps to test each probe for leakage current:
1) Turn the Vivid™ S60/Vivid™ S70 OFF.
2) Plug the Ultrasound system’s mains power cord into the test meter, and plug the test meter into the
tested AC wall outlet.
3) Plug the Chassis Ground Probe (saline probe) into the test meter's “CHASSIS” connector.
4) Using any calibrated Electrical Safety Analyzer tool compliant with AAMI/ESI 1993 or IEC 60601 or
AS/NZS 3551, switch the meter's function selector to the LEAD-LEAD position (or equivalent
function in the device).
5) Connect the ultrasound probe to be tested to the Vivid™ S60/Vivid™ S70.
6) Put the saline probe and the ultrasound probe’s probe face (imaging area of the probe) into the
saline bath.
7) Power ON the Vivid™ S60/Vivid™ S70.
8) After the Vivid™ S60/Vivid™ S70 has completed the boot process, select the probe to be tested so
it is the active probe.
9) Depress the LIFT GROUND rocker switch and record the highest current reading.
10) Follow the test conditions and test limits described in:
• Table 10-11 on page 10-17
or
• Table 10-12 on page 10-17
as applicable for every probe.
The test passes when all readings measure less than the stated limits.
11) Keep a record of the results with other hard copies of maintenance data using Table 10-17 on
page 10-28.
Table 10-17 shows a typical format for recording ultrasound probe source leakage current.
Measurements should be recorded for each probe under the set of test conditions specified in:
• Table 10-11 on page 10-17
or
• Table 10-12 on page 10-17
as applicable.
NOTE: Values in italics font are given as examples only.
12) Record all data on the Inspection Certificate.
DANGER TO AVOID PROBE DAMAGE AND POSSIBLE ELECTRIC SHOCK, DO NOT IMMERSE
PROBES INTO ANY LIQUID BEYOND THE LEVEL INDICATED IN THE PROBE USERS
MANUAL.
DO NOT TOUCH THE PROBE, CONDUCTIVE LIQUID OR ANY PART OF THE
UNIT UNDER TEST WHILE DOING THE TEST .
CAUTION
Equipment damage possibility. Never switch the Polarity or the status of the Neutral
when the Ultrasound system is powered on. Power off the Ultrasound system, allow the
stored energy to bleed down, and turn the circuit breaker off BEFORE switching the
POLARITY switch and/or the NEUTRAL switch on the leakage meter to avoid possible
power supply damage.