GE MEDICAL SYSTEMS LOGIQ A1 BASIC SERVICE MANUAL
REV 2 5176463-100
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2. Plug the unit into the test meter, and the meter into the tested AC wall outlet.
3. Plug the external probe into the meter’s EXTERNAL connector.
4. Set the meter’ s FUNCTION switch to EXTERNAL position.
5. Connect the probe for test with the connector of the console.
6. Apply a liberal amount of gel to the probe’s lens.
7. Wrap the probe in aluminium foil, making sure there is good contact with its
acoustic aperture.
8. Either suspend the probe by its cable or place it on an insulated surface.
9. Have unit power ON for the first part; turn it OFF for the second half.
10. Hold the external probe against the aluminium foil on the probe when the unit is
ready to scan.
11. Depress the ISO TEST rocker switch and record when the unit is ready to scan.
12. Follow the test conditions described in the TABLE 2-7 for every probe.
13. Keep a record of the results with other hand copies of PM data.
Data sheet for Transducer Source Leakage Current
Follow the foregoing test procedure for every probe. The test passes when all readings
measure less than the values shown in the table below:
Table 2-6
MAXIMUM ALLOWANCE LIMIT FOR PROBE LEAKAGE CURRENT
Country Normal
Condition
Open
Ground
Reverse
Polarity
Open Neutral
USA 0.05mA 0.05mA 0.05mA 0.05mA
Others 0.1 mA 0.5 mA 0.5 mA 0.5 mA
Table 2-7
DATA SHEET FOR PROBE SOURCE LEAKAGE CURRENT
Probe tested
LOGIQ A1 Unit
Power
Test Power
Polarity
Tester Ground
Switch
Measurement
ON NORM ON
ON
NORM CLOSED
ON
REV ON
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