Section 16- Troubleshooting
This error occurs because no light or not enough light is reaching the detector. If the troubleshooting steps outlined in the
message do not fix the problem, perform an Intensity Check:
Open the Utilities and Diagnostics module from the main menu.
With the sampling arm down, select OK to initialize the spectrometer and then select ‘Intensity Check’. You should
see a red and black spectrum and a bias value greater than 65 as shown below. This indicates that the USB
communication is normal, the power supply is operational and the flashlamp is functioning.
If no spectra appear in the image, confirm that the power supply is firmly connected to the instrument and the plug is
connected to a working outlet. Next, confirm that the power supply is operating properly. To do this, connect the
leads of a volt-ohmmeter to the outlet of the supply. The voltage should be 12-20 Vdc, center positive.
If none of the troubleshooting steps above solve the problem, refer to the Technical Service section for getting help from
your distributor or NanoDrop Technologies.
Saturated Detector
This error message can occur when the software calculates too high integration times during initialization. This is most
likely due to a dried sample left on the measurement surface after the last use of the instrument. Cleaning both the top
and bottom pedestals with de-ionized water and exiting out of the software module to the main menu should alleviate the
problem. It is not necessary to close the software completely as each module is re-initialized when it is opened. If the
error persists, contact NanoDrop Technologies or your local distributor
Liquid Column Breakage
16-3
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