Philips M3000A, Руководство по обслуживанию

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Part 2 Isolating and Solving Instrument Problems
Troubleshooting the Instrument 193
No wave dis-
played but chan-
nel is present Check for INOPS and fol-
low recommended actions
Mainstream CO
2
Measurement Server Extension related problems
“CHECK CAL”
INOP Invalid calibration Follow the recommended
actions from INOP table
Accuracy prob-
lems Incorrect N
2
O setting
Incorrect humidity correc-
tion setting (BTPS/STPD)
Incorrect Max Hold set-
ting
Invalid calibration
1. Check Settings:
- N
2
O correction
- BTPS or STPD
- Max Hold or standard
averaging
2. Perform accuracy check
on calstick and calibrate,
if necessary.
No wave dis-
played and no
channel present 1.Measurement Extension
is used with a monitor
and/or Measurement
Server with Release A
software (A.xx.xx)
2.CO
2
measurement
switched off
1. Check if the Measure-
ment Extension is sup-
ported by the system
configuration (hardware
and software)
2. Check that CO
2
meas-
urement is switched on
Audio Speaker related problems
Buzzing noise
accompanying
alarm, INOP, or
QRS sound. Speaker mounting prob-
lem, for example, the
speaker is ajar due to
being dropped. Mount speaker properly or
replace speaker.
No tone alarms.
Speaker will not
work.
Make sure audible tones
are switched on.
Cable disconnected.
Defective speaker.
Defective Audio Circuit.
Reconnect cable.
Replace speaker.
Replace the System
Board.