GE Medical Systems marquette Dash 2000, Service Manual, Page: 54 / 202

Maintenance: Checkout Procedures
3-8 DASH 2000 Patient Monitor Revision A
2000 412-001
8. Observe the following while viewing ECG leads II, III, aVR, aVF, and V:
¥ a P appears above the PVC count indicating pacemaker pulse
detection is enabled, a star is blinking at each Pacemaker Pulse
¥ if necessary press ÒSilence alarmsÓ.
9. Disable pacemaker pulse detection on the monitor and return the
simulator to these conditions:
¥ Heart rate Ð 80 bpm,
¥ Heart rate amplitude Ð 1.0 mV,
¥ 5-lead ECG patient cable properly attached.
10. Select ECG lead II for viewing in the top trace position on the
monitor display.
11. Disconnect the RA leadwire from the patient simulator.
12. Observe following:
¥ a 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. Setup the graph curve selection according to the figure below. Inject a
1-millivolt calibration signal using the patient simulator and start a
manual graph.
15. Observe that the calibration pulse is properly displayed and graphed.
If others than the recommended simulators are used, the calibration
pulses may be different (see figure below).
16. This completes the ECG tests. Continue to the next steps of these
checkout procedures.
1 mV
0
1 cm
1 mV
0
1 cm