Welch Allyn Duet CO2 Module - User Manual User Manual
Page 83
Duet CO
2
Module OEM Implementation Manual
Welch Allyn OEM Technologies
Confidential
Page 83
Status
Message Code
Definition
Possible Causes
81
unexpected reverse flow
• Water trap/cannula/exhaust tubing not
properly connected
82
unexpected forward flow
• Water trap/cannula/exhaust tubing not
properly connected
84
barometric pressure too high
• host system operating above 790 mmHg
(1,150 ft below sea level)
• faulty barometric transducer
85
barometric pressure too low
• host system operating below 408 mmHg
(15,000 ft above sea level)
• faulty barometric transducer
40h, Watchdog Error
Watchdog timeout has occurred.
44h, System EEPROM Error/CRC Code
CRC code read from the system EEPROM is invalid.
46h, System FLASH ROM Error/CRC Code
CRC code read from the system FLASH ROM is invalid.
47h, System Communication Error
4Bh/4Ch, System RAM Error
4Dh, System FLASH ROM Error/Checksum
Checksum read from the system FLASH ROM is invalid.
4Eh, Stack Overflow Error
An error in stack usage occurred.
4Fh, System SW Error/Main Program
Main SW program is exited.
57h, No Sidestream Daughter Board (sidestream only)
CO
2
main processor board does not recognize a sidestream daughter board when sidestream
mode is selected.
Action Check if the sidestream daughter board is present. If so, the sidestream daughter
board may not be functioning correctly.