S/5 Airway modules
Document No. 800 1005-1
53
4.6
PVX board troubleshooting
CAUTION
The measuring unit PVX-100 can be repaired and calibrated only at the factory.
NOTE: Never apply DIFFERENTIAL pressure higher than 25 cmH
2
O to the spirometry tubing. Make
sure that both spirometry tubes are always connected.
NOTE: Never apply overpressure or negative pressure of more than 300 cmH
2
O to the spirometry
tubing.
No spirometry
Is the
PVX software
on the software list
on the service
view?
Go to PVX service
view
Check Err status in Gas
Mother board service page.
YES
NO
Figure 19
PVX board troubleshooting flowchart
NOTE: The PVX software string does not appear onto the list when using the combination of G-AOV
module and monitor software S-___94.
4.7
Gas mother board troubleshooting
Due to the complexity of the LSI circuitry there are only a few faults in the CPU digital electronics
that can be located without special equipment.
Check that the RAM, EPROM, CPU and other IC’s that are on the sockets are properly attached.
See Gas mother board service pages for more information.
4.7.1
Instructions after replacing the software or Gas mother board
After replacing the software or Gas mother board:
•
perform the sampling system leak test
•
check the flow rates
•
perform the gas calibration
Содержание S/5 B-GAS
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