GE Dash 3000 Service Manual page 92

4-38
Maintenance: Checkout Procedures
8. Observe the following while you view ECG leads I, II, III, aVL, aVF,
and AVR:
a "P" appears above the PVC count indicating pacemaker pulse
detection is enabled, and
the heart rate still reads 80 ±1 bpm.
9. Disable pacemaker pulse detection on the monitor and return the
simulator to these conditions:
Heart rate – 80 bpm,
Heart rate amplitude – 1.0 mV,
5-lead ECG patient cable properly attached.
10. Select ECG lead II to view in the top trace position on the monitor
display.
11. Disconnect the RA leadwire from the patient simulator.
12. Observe that:
an RA FAIL message appears on the display, and
lead III automatically displays in place of lead II in the top trace
position.
13. Reconnect the RA leadwire to the patient simulator.
14. Inject a 1-millivolt calibration signal using the patient simulator and
start a manual graph.
15. Observe that the calibration pulse properly displays and graphs.
16. This completes the 5 Lead ECG test. Continue to the next steps of
these checkout procedures.
Dash 3000/4000 Patient Monitor
2000966-339
016A
Revision A