Nellcor NPB-40 Service Manual page 10

Section 3: Performance Verification
3-2
Set the SRC-2 controls as follows:
RATE
LIGHT
MODULATION
LOCAL/REMOTE/RCAL
5. Press the On/Off key on the NPB-40 front panel keypad.
6. When the self-test is complete, verify that the PULSE SEARCH
indicator illuminates momentarily and verify that the NPB-40 is
displaying a pulse rate of 112 (±3 bpm), that the pulse amplitude
indicator is displaying properly, that the SpO
81 (±2 %), that a pulse beep can be heard, and that the PULSE
SEARCH indicator is off.
7. Set the following SRC-2 controls as indicated:
RATE
LIGHT
MODULATION
Wait 30 seconds and verify that the NPB-40 is displaying a pulse rate of
38 (±3 bpm), that the pulse amplitude indicator is displaying properly,
that the SpO % indicator is displaying 81 (±2 %), that a pulse beep can
2
be heard, and that the PULSE SEARCH indicator is off.
8. Set the following SRC-2 controls as indicated:
RATE
LIGHT
Wait 30 seconds and verify that the NPB-40 is displaying a pulse rate of
201 (±3 bpm), that the pulse amplitude indicator is displaying properly,
that the SpO % indicator is displaying 81 (±2 %), that a pulse beep can
2
be heard, and that the PULSE SEARCH indicator is off.
9. Set the following SRC-2 control as indicated:
MODULATION
Wait 30 seconds and verify that the NPB-40 is displaying a pulse rate of
201 (±3 bpm), that the pulse amplitude indicator is displaying properly,
that the SpO % indicator is displaying 81 (±2 %), that a pulse beep can
2
be heard, and that the PULSE SEARCH indicator is off.
10. Press the Shift key followed by the Display Light/Beep On/Off key.
Verify that the SHIFT indicator illuminates when the Shift key is
pressed then verify that the pulse beep stops and the SHIFT indicator
extinguishes when the Display Light/Beep On/Off key is pressed.
11. Press the Shift key followed by the Display Light/Beep On/Off key and
verify that the pulse beep can be heard again at a low level.
112
HIGH 1
HIGH
LOCAL
% indicator is displaying
2
38
HIGH 2
LOW
201
LOW
HIGH