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Signal Error
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 flash lamp 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.
Section 17- Troubleshooting
17-4
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