2.7 Specifications
2.7 Specifications
2 - 12
2 - 12
2.7 Specifications
2.7 Specifications
Table 2-2 shows the specifications of
Table 2-2 shows the specifications of the Model U-2810.
the Model U-2810.
Table
Table 2-2
2-2 Specifications
Specifications of
of Model
Model U-2810
U-2810
Monochrom
Monochromator
ator
Hitachi
Hitachi high-resolu
high-resolution
tion concave
concave diffraction
diffraction grating
grating
Seya-Namioka mount, double beam
Seya-Namioka mount, double beam
Wavelength
Wavelength range
range
190
190 to
to 1100
1100 nm
nm
Spectral
Spectral bandpass
bandpass
2
2 nm
nm
Stray
Stray light
light
0.05%
0.05% or
or less
less
(220 nm for NaI, 340 nm for NaNO
(220 nm for NaI, 340 nm for NaNO
2
2
))
Wavelength
Wavelength accuracy
accuracy
±0.3
±0.3 nm
nm
Wavelength setting
Wavelength setting
reproducibility
reproducibility
±0.1 nm
±0.1 nm
Measurement
Measurement mode
mode
Abs,
Abs, %T,
%T, E
E (S),
(S), E
E (R)
(R)
Photometric
Photometric range
range
Abs
Abs :
:
-2
-2 to
to 3
3 Abs
Abs
%T
%T :
:
0
0 to
to 300%T
300%T
Photometric accuracy
Photometric accuracy
(checked with NIST 930)
(checked with NIST 930)
±0.002 Abs (0 to 0.5 Abs)
±0.002 Abs (0 to 0.5 Abs)
±0.004 Abs (0.5 to 1.0 Abs)
±0.004 Abs (0.5 to 1.0 Abs)
±0.008 Abs (1.0 to 2.0 Abs)
±0.008 Abs (1.0 to 2.0 Abs)
±0.3%T
±0.3%T
Photometric
Photometric reproducib
reproducibility
ility
±0.001
±0.001 Abs
Abs (0
(0 to
to 0.5
0.5 Abs)
Abs)
±0.002 Abs (0.5 to 1.0 Abs)
±0.002 Abs (0.5 to 1.0 Abs)
±0.004 Abs (1.0 to 2.0 Abs)
±0.004 Abs (1.0 to 2.0 Abs)
±0.1%T
±0.1%T
Baseline
Baseline flatness
flatness
±0.002
±0.002 Abs
Abs (200
(200 to
to 950
950 nm)
nm)
Baseline
Baseline stability
stability
Within
Within 0.0003
0.0003 Abs/hr
Abs/hr (2
(2 hours
hours after
after power
power on)
on)
Noise
Noise level
level
Within
Within 0.0003
0.0003 Abs
Abs (Abs
(Abs =
= 0,
0, 500
500 nm)
nm)
Response
Response
Fast,
Fast, medium,
medium, slow
slow
Scan
Scan speed
speed
10,
10, 100,
100, 200,
200, 400,
400, 800,
800, 1200,
1200, 2400,
2400, 3600
3600 nm/min
nm/min
Light
Light source
source
Deuterium
Deuterium lamp,
lamp, tungsten
tungsten iodide
iodide lamp
lamp
Light
Light source
source switching
switching
Automatic
Automatic switching
switching linked
linked with
with wavelength
wavelength
Switching waveleng
Switching wavelength:
th: Optionally selectab
Optionally selectable in a
le in a
range of 325 to 370 nm
range of 325 to 370 nm
Sample
Sample compartmen
compartment
t
Beam
Beam spacing:
spacing: 100
100 mm
mm
120 (W)
120 (W)
×
×
300 (D)
300 (D)
×
×
140 (H) mm
140 (H) mm
Detector
Detector
Silicon
Silicon photodiode
photodiode
Dimensions
Dimensions
(spectropho
(spectrophotometer main
tometer main unit)
unit)
505 (W)
505 (W)
×
×
575 (D)
575 (D)
×
×
225 (H) mm
225 (H) mm
Weight
Weight
29
29 kg
kg
Power
Power source
source
100/115/220/2
100/115/220/230/240
30/240 V,
V, 50/60
50/60 Hz
Hz
Power
Power consumpti
consumption
on
200
200 VA
VA