Ocean Optics ARCoptix ANIR - Manual (Page 29)

4: Troubleshooting
ARC-00000-000-02-0310 21
No Signal
Possible Cause Comment Suggested Solution
USB cable is loose Check cables for good contact
Light not on Check light
Sample not appropriate Use a different sample
Transient internal
spectrometer fault Remove USB cable and re-insert
Defect in Spectrometer Contact Ocean Optics
Signal Intensity is Not Constant
Possible Cause Comment Suggested Solution
Fiber optic cable has shifted
in position Tape fiber optic cable to bench
Lamp is not stable Defective lamp Replace the lamp
Sample is not
homogeneous (cuvette) Mix sample and filter if necessary to
remove particulate matter
Sample is not
homogeneous (integrating
sphere) Move integrating sphere to a
different region of the sample
Sample is decomposing Replace sample
Cuvette is scratched Always place cuvette in
sample holder with same
plane facing the source Replace cuvette
Defect in Spectrometer Contact Ocean Optics
Peak Wavelength Has Shifted
Cause Comment Solution
The background spectrum
is not valid Run a new background spectrum
Sample is not
homogeneous Find another region of the sample
Defect in Spectrometer Contact Ocean Optics