Ocean Optics DTS - Manual (Page 56)

Chapter 7
7-4 Polychromix DTS TM Near-Infrared Spectrometer
Operator’s Manual
Document Number 04-91-0201-00 Rev A
7.3.4 The Signal Intensity is not Constant
Cause Comment 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 Polychromix or its
representative
7.3.5 The Wavelength for a Peak 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 Polychromix or its
local representative