Agilent Technologies 8453 Operator's Manual page 183

Table 31
Table 32
Diagnostics and Troubleshooting
Error Messages
Wavelength Calibration Data Invalid
Possible Causes
Communication error between EEPROM of
spectrograph and SDA board. Cable between
spectrograph and SDA board disconnected or
defective.
Wavelength calibration data from EEPROM of
spectrograph rejected or communication of
calibration data disrupted.
Wavelength calibration data in EEPROM of
spectrograph corrupted.
Wavelength Recalibration Data Lost
Possible Causes
8-bit configuration switch sets the instrument
to resident mode.
When doing a firmware upgrade, wavelength
recalibration data are lost. The factory
wavelength calibration is still valid.
When exchanging the SPM board,
wavelength recalibration data are lost. The
factory wavelength calibration is still valid.
Action
Reconnect or replace cable.
Replace the spectrophotometer data
acquisition (SDA) board.
Replace optical unit
Action
Correct 8-bit configuration switch settings
and turn instrument off, then on again.
Perform a wavelength recalibration with your
software.
Perform a wavelength recalibration with your
software.
Perform a wavelength recalibration with your
software.
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