Revision C 170 Series Monitor 9-11
2000947-004
Maintenance: Preventative Maintenance Inspection
Patient-to-Ground Leakage for US2
1. Connect an ultrasound test body to the monitor’s front panel US2 input.
2. Configure a leakage tester to perform a patient leakage test.
3. Turn ON the monitor using the monitor’s
On/Standby button.
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 Ground Power (Polarity)
__________ Closed __________ Closed __________ Normal
__________ Closed __________ Open __________ Normal
__________ Closed __________ Open __________ Reversed
__________ Closed __________ Closed __________ Reversed
__________ Open __________ Closed __________ Normal
__________ Open __________ Closed __________ Reversed
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