3
Troubleshooting and Test Functions
Calibration Values Invalid
The calibration values read from the spectrometer ROM are invalid.
After recalibration, the calibration values are stored in ROM. The processor
periodically checks if the calibration data are valid. If the data are invalid or
cannot be read from the spectrometer ROM, the error message is generated.
• Defective detector main board.
• Defective optical unit.
70
Probable Causes
Suggested Actions
Exchange the detector main board.
Exchange the optical unit.
1100 Series DAD and MWD Reference Manual