GE Corometrics 170 Series Service Manual page 213

Patient-to-Ground Leakage for US2
Revision C
Maintenance: Preventative Maintenance Inspection
1. Connect an ultrasound test body to the monitor's front panel
2. Configure a leakage tester to perform a patient leakage test.
3. Turn ON the monitor using the monitor's
4. Verify the following:
<50 µA
(132–253 VAC, or at the line voltage at your facility +10%)
5. Record the patient-to-ground leakage for the following conditions:
Table 9-4. Patient-to-Ground Leakage Conditions for US2
Neutral
__________ Closed
__________ Closed
__________ Closed
__________ Closed
__________ Open
__________ Open
170 Series Monitor
2000947-004
button.
On/Standby
Ground
__________ Closed __________ Normal
__________ Open __________ Normal
__________ Open __________ Reversed
__________ Closed __________ Reversed
__________ Closed __________ Normal
__________ Closed __________ Reversed
input.
US2
Power (Polarity)
9-11