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TROUBLESHOOTING: Data Acquisition Tests
Revision A
DASH 2000 Patient Monitor
4-9
2000 412-001
ECG Waveforms Display
Incorrectly
1.
If the calibration pulses were not correct, test the patient simulator
using a working monitor. If the patient simulator is functioning as
designed, you may need to replace the acquisition PCB.
2.
If displayed ECG waveforms contain a significant amount of noise
(see figure at left), check the ECG patient cables.
3.
Test the patient simulator and ECG patient cables on a working
monitor to verify the ECG signal.
4.
If the ECG signal, patient simulator and ECG patient cables are
good, the acquisition PCB is suspect and may need to be replaced.
ECG Waveforms Do Not
Display At All
1.
Test the ECG patient cables on a working monitor.
2.
Test the patient simulator on a working monitor.
3.
Swap the acquisition PCB into a working monitor. If the symptoms
follow the PCB into the working monitor, replace the acquisition
PCB.
4.
If none of these first three steps provide any results, swap the
processor PCB and/or power supply PCB into a working monitor.
Lead Fail Functions
1.
With the monitor displaying leads I, II, and V from the patient
simulator, remove the RA leadwire from the patient simulator.
2.
The monitor should display a RA FAIL message. Lead fail detection
is functioning properly if this is the case. Lead fail detection is not
functioning, if this is not the case. The acquisition PCB is suspect.
Swap the PCB with a working monitor to verify the malfunction.
3.
Reattach the RA leadwire to the patient simulator.
Pace Detect
Functions
1.
With the patient simulator set to HR 80, amplitude 2 mV and with
the monitor displaying leads II, I, and V set the patient simulator to
output a VP2 waveform.
2.
Enable the pacemaker detection function of the monitor:
¥
select ECG from the display main menu,
¥
select DETECT PACE and set to PACE 2.
3.
Verify the heart rate remains at approximately 80 bpm.
4.
Disable the pacemaker detection function of the monitor.
1 mV
0
1 cm
Summary of Contents for marquette Dash 2000
Page 12: ...Contents viii DASH 2000 Patient Monitor Revision A 2000 412 001 ...
Page 82: ...Maintenance Repair Log 3 36 DASH 2000 Patient Monitor Revision A 2000 412 001 ...
Page 156: ...UPPER LEVEL ASSEMBLY Spare Parts List 7 10 DASH 2000 Patient Monitor Revision A 2000 412 001 ...
Page 157: ...Revision A DASH 2000 Patient Monitor 8 1 2000 412 001 8 ASSEMBLY DRAWINGS Contents ...
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