Welch Allyn Atlas - Page 58

Section 3 - Troubleshooting
32 WELCH ALLYN ATLAS MONITOR
SERVICE MANUAL 6200-43E REV. A
Lead Selected = II
Pulse tone high pitched
Respiration waveform on second line
Respiration Rate displayed as set on simulator
If ECG waveform not seen
If ECG waveform not cascading
In Scale Bar not on top line
If Heart Rate not displayed (or displayed incorrectly)
If Lead Selected not shown
If Heart rate tone not heard
If Respiration waveform not shown
If Respiration Rate not displayed correctly
Re-install software
Replace CPU board
Replace Main board
Disconnect ECG simulator
Turn system off and back on to clear state.
Connect SpO
2
cable and cuff and install cuff on simulator
(or your finger).
Set simulator to normal readings.
See pleth signals immediately
If Pleth signals not seen within 10 seconds: goto
SpO
2
2
See SpO
2
percentage within several seconds
If SpO
2
percentage not seen within 1 minute: goto
SpO
2
2
See Pulse display at the same time as SpO
2
percentage
If Pulse display not seen at same time as SpO
2
percentage: goto SpO
2
2
Disconnect SpO
2
cuff from simulator
Technical alarm sounds
See error “SpO
2
cuff not detected”
If alarm not heard: goto Sound 1
If error not seen:
Reconnect SpO
2
cuff to simulator
Technical alarm stops
Error message erased
Unplug SpO
2
cable from Atlas
Technical alarm sounds
See error “SpO
2
cable missing”
SpO
2
1
Note: The Nellcor or Nonin
should be accurate* to the
simulators.
*2% or 3bpm for any in-
range settings on the
simulators.
3.4 Diagnostic Tests