Mallinckrodt NELLCOR NPB-4000 Service Manual page 20

Section 3: Performance Verification
3.3.4.2 Operation with an ECG Simulator
3-8
1. With monitor off, connect ECG leads to appropriate jacks on ECG tester.
2. Connect leads to CE-10 ECG cable.
3. Connect CE-10 to ECG input port on NPB-4000/C.
4. Set ECG tester as follows:
Heart rate:
Amplitude:
Lead select:
Normal sinus rhythm
Adult mode
Note: The accuracy of NPB-4000/C ECG measurements is ±5 bpm. In the
procedure below, add the tolerance of the simulator to the acceptable
range of readings.
5. Press On/Standby switch to turn monitor on.
6. After normal power-up sequence, verify the following monitor reactions:
a. After at least five heartbeats, monitor displays a heart rate of 30 ±5
bpm.
b. Audible alarm will sound and HEART RATE display will flash,
indicating heart rate is below default lower alarm limit.
7. Press Alarm Silence switch. Verify audible alarm is silenced.
8. Increase heart rate setting on ECG simulator to 240 bpm.
9. After at least five heartbeats, verify monitor displays heart rate of 240 ±5
bpm.
10. Verify audible alarm sounds and HEART RATE display flashes, indicating
heart rate is above default upper alarm limit.
11. Press Alarm Silence switch to silence alarm.
12. Decrease heart rate setting on ECG simulator to 120 bpm.
13. After at least five heartbeats, verify monitor displays heart rate of 120 ±5
bpm.
30 bpm
1 millivolt
II