Ocean Optics DTS - Manual (Page 55)

Maintenance and Troubleshooting
Polychromix DTS TM Near-Infrared Spectrometer 7-3
Operator’s Manual
Document Number 04-91-0201-00 Rev A
7.3.2 If the Spectrum is Noisy
Cause Comment Solution
Lamp is weak The lamp has a finite
lifetime Replace the lamp
The absorbance is weak or
% T is very high (noisy
spectrum) The sample is too dilute or
too thin Prepare a more
concentrated sample
Use Spectrum Averaging
to reduce noise (Section
5.4)
The absorbance is too
strong The sample is too
concentrated or thick Dilute the sample or
reduce its thickness
Cable is loose Check all cables for good
contact
Fiber optic cable is
defective Replace fiber optic cable
Transient internal
spectrometer fault Remove USB cable and
re-insert
Defect in Spectrometer Contact Polychromix or its
local representative
7.3.3 There is no Signal
Cause Comment Solution
USB cable is loose Check cables for good
contact
Light not on. Check light
Sample not appropriate Check light meter
Transient internal
spectrometer fault Remove USB cable and
re-insert
Defect in Spectrometer Contact Polychromix or its
local representative