9-18 170 Series Monitor Revision C
2000947-004
Maintenance: Preventative Maintenance Inspection
Patient-to-Line Leakage for FECG
1. Connect a tocotransducer test body to the monitor’s front panel FECG input.
2. Configure a leakage tester to perform a line 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-line leakage for the following conditions:
Enclosure Leakage
1. Wrap the entire monitor enclosure in aluminum foil.
2. Configure a leakage tester to perform an enclosure leakage test.
3. Turn ON the monitor using the monitor’s
On/Standby button.
4. Verify the following:
Normal, 0.1 mA
pass fail
Single Fault, 0.5 mA
pass fail
Table 9-11. Patient-to-Line Leakage Conditions for FECG
Neutral Ground Power (Polarity)
__________ Closed __________ Closed __________ Normal
__________ Closed __________ Closed __________ Reversed
__________ Open __________ Closed __________ Normal
__________ Open __________ Closed __________ Reversed
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