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4.3
4.3
Check of of Specified
Check
Specified Performance
4.3.2
4.3.2
Spectrum Band
Spectrum
Band
Width
Width
4.3.3 Baseline
4.3.3 Baseline
Flatness
Flatness
Performance
Check the spectrum band width in
Check the spectrum band width in the following procedure.
(1)
(1)
Utilize the
Utilize
the spectrum
spectrum acquired
(2)
(2)
Determine the
Determine
the wavelength
acquired spectrum at the portion where the peak height is
acquired spectrum at the portion where the
1/2 of the max
1/2 of
the maximum h
1.0 to 1.5 nm
1.0 to
1.5 nm for the
width is out of the range, then execute wavelength
width is out of the range, then execute wavelength
calibration and retry measurement for check.
calibration and retry measurement for check.
Fig. 4-1
Fig.
4-1 Check
(3)
(3)
If the specified
If the
specified performance
High-Technologies Corporation service
High-Techno
The baseline flatness includes baseline drift and noise.
The baseline flatness includes baseline drift and noise.
Before checking the baseline flatness, warm up the
Before checking the baseline flatness, warm up the instrument
sufficiently (for 2 hours or more after turning on power).
sufficiently (for 2 hours or more after turning on power).
(1)
(1)
Open the
Open
the Analysis
Analysis Method
Method command from the Edit menu.
Method command from the Edit menu.
(2)
(2)
Select "Wavelength
Select
"Wavelength scan"
General tab page.
General tab page.
(3)
(3)
Set the parameters
Set the
parameters on the
Table 4-5.
Table 4-5.
the following procedure.
acquired in in 4.3.1.
wavelength width
width (half
imum height.
eight.
If the
If the width i
for the Model
Model U-2810,
U-2810, it is
y
y
g
g
r
r
e
e
n
n
E
E
Half value width
Half value width
Check of of Spectrum
Spectrum Band
performance is is not o
not obtained,
logies Corporation service office.
Method window
window by c
scan" in in the M
the Measurement
on the Instrument
Instrument tab p
4 - 4
4 - 4
4.3.1.
(half value
value width)
width) of th
of the e
peak height is
width is in
s in a range
a range of of
it is normal.
normal. If the
If the
A A
A A
2 2
Wavelength
Wavelength
Band Width
Width
btained, contact
contact Hitachi
Hitachi
office.
instrument
by clicking
licking the A
the Analysis
nalysis
easurement field
field on
on the
tab page
age as sho
as shown i
the
wn in n
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