BUCHI NIRMaste - Manual (Page 59)

8 Troubleshooting
59 NIRMaster Operation Manual, Version A
8 .3 Reference measurement fails
When the deviation between the stored reference spectrum is out of limit, the reference measurement
will fail. A pop-up window will show both curves and give details of the measurement result.
Possible reasons for a reference measurement to fail
Optical surfaces (e.g. External reference) dirty or scratched •
Environmental conditions out of operational range (e.g. condensating humidity at optical surfaces) •
Defective instrument (e.g. electronic damage) •
After lamp-module exchange •
Remedy
Clean the External reference and the NIRMaster output window •
Place the External reference onto the output window and press the ‘Rerun’ button to repeat the •
measurement
If measurement still fails, a new reference spectrum can be stored by pressing the ‘Checkmark’
button. A login window will pop-up. An administrator login is required to store the new data set!