Welch Allyn Duet CO2 Module - User Manual - Manual (Page 80)

Duet CO
2
Module OEM Implementation Manual
Page 80 Confidential Welch Allyn OEM Technologies
14h, CO
2
Sensor Signal Very Low
IR detector voltage measured during the reference gas cell phase of the chopper wheel
rotation is below the preset threshold. Transmission of CO
2
waveform and breath data packets
is halted until the advisory is cleared. The Duet CO
2
Module remains in the measurement
mode despite the condition.
Action Following instructions for 13h fault code.
50h, CO
2
Sensor Disconnect
Duet CO
2
Module does not detect an attached CO
2
sensor.
Action If mainstream operation, try a different sensor. If the fault persists when a CO
2
sensor
is connected, check if the sensor connector is loose by reseating the connector.
51h, CO
2
Sensor Manufacturer ID Mismatch (mainstream only)
Mainstream sensor’s ID stored in the EEPROM does not match the correct OEM specific
code.
Action If mainstream operation, try a different sensor and issue a new measurement mode
command.
60h, CO
2
Sensor EEPROM Error/Revision #
Revision # read from the CO
2
sensor EEPROM is invalid.
Action Check that the revision data is in the 1.xx format. If mainstream operation, try a
different sensor and issue a new measurement mode command.
61h, CO
2
Sensor EEPROM Error/Checksum
Checksum read from the CO
2
sensor EEPROM is invalid.
Action If mainstream operation, try a different sensor and issue a new measurement mode
command.
65h, CO
2
Sensor EEPROM Error/Read/Write
A read or write error to the CO
2
sensor EEPROM has occurred.
Action If mainstream operation, try a different sensor and issue a new measurement mode
command.
66h, CO
2
Sensor EEPROM Error/CRC Code
CRC code read from the CO
2
sensor EEPROM is invalid.
Action If mainstream operation, try a different sensor and issue a new measurement mode
command.