Performance Verification Procedure - Mallinckrodt Nellcor NPB-70 Service Manual

Handheld capnograph
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Section 10: Performance Verification
10.2

PERFORMANCE VERIFICATION PROCEDURE

10-2
8.
If the reading drops more than 20 mBar, there is a leak in the flow
system.
Open the unit.
Check for loose fittings and if any are found, reconnect
them.
Repeat the above process (steps 1-7).
If the reading continues to show a drop of more than 20
mBar, replace the Flow System, refer to Section 7-5.
Verify the performance of the monitor using the following procedure.
1.
Connect the monitor to mains supply using the AC adapter.
2.
Connect the FilterLine to the monitor.
3.
Turn ON the monitor.
4.
The Initialization Screen appears and the
Self-Test bar fills, refer to Figure 10-2.
5.
Verify that an audio tone sounds. This
verifies proper operation of the Alarm
interfacing. Check that the LEDs on the
alarm bar turn red, yellow and then off. The
7-segment display shows 8s moving from
left to right.
6.
After initialization, the monitor
automatically goes to Measuring Mode. The
message CO
Warmup appears on the Silent
2
Advisory Message area, refer to
Figure 10-3.
7.
After CO
Warmup, verify that the message
2
changes to Ready.
Note: If BTPS is on, then the message will read BTPS ON-Ready.
8.
Disconnect the FilterLine and verify that the message FilterLine
is displayed on the Silent Advisory Message Area and verify that
the pump stops.
9.
Reconnect the FilterLine and verify that the message FilterLine
disappears and the pump is operating.
Figure 10-2:
Initialization Screen
Figure 10-3: Measuring
Mode

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