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2. <WL
Reproducibility>
The HALO RB-10 will perform a wavelength scan from 660.0 to 650.0nm as in the
first stage of the WL Accuracy test. The maximum value of wavelength will be
located, then the motor moves from 650.0 to 190.0nm, and then from 190.0 to
660.0nm.
In second stage, the HALO RB-10 will scan from 660.0-650.0nm again, find another
wavelength position at the same time.
In the third stage, the HALO RB-10 will move from 650.0-1100.0nm, from
1100.0-660.0nm and perform a wavelength scan the third time and mark the third
wavelength peak position.
From the three values recorded in the 3 stages, the HALO RB-10 will obtain the
maximum wavelength value and the minimum wavelength value, taking the mean
of the two values i.e. (max-min)/2. If the result is within 0.5nm, the WL
Reproducibility item will display <OK>.
3. <Bandpass>
The HALO RB-10 performs a wavelength scan from 660.0 to 650.0nm as in the WL
Accuracy test. From the measured data, the HALO RB-10 identifies the maximum
value and the minimum value and takes the mean of the absorbance value i.e. A/2=
(Max-Min)/2.
At A/2 Abs value, two wavelength values which are close to A/2 can be identified.
The difference between these two wavelengths is the value of bandpass. If the
bandpass value is within 3.0-4.5
nm, the bandpass item will display <OK.>.