Welch Allyn LC101 CO2 Module - User Manual - Manual (Page 70)

LC101 CO
2
Module OEM Implementation Manual
Page 70 Confidential Welch Allyn OEM Technologies
29, Unable to Perform Calibration, Data Error
The acquired CO
2
data is invalid or out of range for the calibration. The Module will abort the
calibration. This error also occurs when calibration is aborted due to any other non-fatal error.
2A, Bad Calibration CRC
The system EEPROM CRC is not valid after being updated with the new constants.
Sensor Faults
CO
2
sensor faults are conditions that result in shutting down the sensor. A CO
2
sensor shutdown
turns off the lamp and the pump.
To clear a sensor fault, perform a software reset followed by a new host command. If the Module
does not accept the command, a hard reset is required.
Sensor faults are listed in the following table.
51, CO
2
Sensor Manufacturer Code Mismatch
Sensor manufacturer code stored in sensor EEPROM does not match the host monitor
manufacturer code.
• Verify the data in the EEPROM location.
Status
Message Code
(hex) Definition Possible Causes
51 Customer code mismatch • Incorrect EEPROM data or bad sensor EEPROM
57 CO
2
sensor not found • Main Board not acknowledging the sensor
• loose or faulty sensor connection
60 CO
2
sensor EEPROM error
in revision #
• incompatible/invalid sensor EEPROM revision #
• faulty sensor EEPROM
65 CO
2
sensor EEPROM error
in read or write operation
• invalid read/write to sensor EEPROM;
• faulty sensor EEPROM
66 CO
2
sensor EEPROM error
in CCITT/CRC code
• invalid sensor EEPROM CCITT/CRC code;
• faulty sensor EEPROM
70 CO
2
sensor temperature
too high
• sensor exposure to excessive heat source;
• faulty sensor
71 CO
2
sensor temperature
too low
• sensor exposure to excessive cold source;
• faulty sensor