Mallinckrodt NELLCOR NPB-4000 Service Manual page 21

3.3.4.3 Operation with a Respiration Simulator
14. Disconnect LL lead from ECG simulator.
15. Verify "Leads Off" alarm message appears, three dashes are displayed in
HEART RATE display, and low priority audible alarm sounds.
16. Reconnect LL lead to ECG simulator. Verify "Leads Off" alarm message
no longer appears and audible alarm is silenced.
17. Repeat steps 14 through 16 for LA and RA leads.
18. Turn monitor off.
1. With monitor off, connect ECG leads to appropriate jacks on respiration
simulator.
2. Connect ECG leads to CE-10 ECG cable.
3. Connect CE-10 to ECG input port on NPB-4000/C.
Note: The accuracy of NPB-4000/C ECG measurements is ±3 breaths per
minute. In the procedure below, add the tolerance of the simulator to the
acceptable range of readings.
4. Set simulator for respiration rate of 120 breaths per minute.
5. Press On/Standby switch to turn monitor on.
6. After normal power-up sequence, verify the following monitor reactions:
a. Monitor displays respiration rate of 120 ±3 breaths per minute.
b. Audible alarm will sound and RESPIRATION RATE display will
flash, indicating respiration rate is above default upper alarm limit.
7. Press Alarm Silence switch. Verify alarm is silenced.
8. Decrease respiration rate setting on respiration simulator to 20 breaths per
minute.
9. Verify monitor displays respiration rate of 20 ±3 breaths per minute.
Section 3: Performance Verification
3-9