6
2 Specifications
The specifications of each model covered in this manual are given below.
2.1 V-630 UV/VIS Spectrophotometer Specifications
Optical system Single monochromator
UV/VIS region: 1200 lines/mm concave grating
Rowland off-circle arrangement
Double beam type
Light source Deuterium lamp: 190 to 350 nm
Halogen lamp: 330 to 1100 nm
Light source exchange
wavelength
Any wavelength between 330 and 350 nm can be
selected.
Detector Silicon photodiode (S1337)
Wavelength range 190 to 1100 nm
Wavelength accuracy ±0.2 nm (at 656.1 nm, when the room temperature is
stabilized.)
Wavelength repeatability ±0.1 nm
Slew speed 12000 nm/min
Spectral bandwidth 1.5 nm fixed
Photometric range 0 to 10000 %T
-2 to 3 Abs
Photometric accuracy
±0.002 Abs (0 to 0.5 Abs)
±0.003 Abs (0.5 to 1 Abs)
±0.3 %T
(Tested with NIST SRM 930D)
Photometric repeatability
±0.001 Abs (0 to 0.5 Abs)
±0.001 Abs (0.5 to 1 Abs)
Stray light 1 % (198 nm KCL 12 g/L aqueous solution)
0.04 % (220 nm NaI 10 g/L aqueous solution)
0.02 % (340 nm NaNO
2
50 g/L aqueous solution)
0.02 % (370 nm NaNO
2
50 g/L aqueous solution)
(10 mm cell used)
Baseline stability 0.0004 Abs/hour
(Value obtained more than two hours after turning on the
light source, when the room temperature is stabilized,
wavelength: 250 nm, and response: slow.)
Baseline flatness
±0.0006 Abs
(Value obtained after baseline correction with a
temperature variation of less than 5°C, wavelength: 200
to 1000 nm, response: medium, with smoothing
processing and wavelength scanning speed: 400 nm
/min.)
RMS noise 0.00006 Abs (0 Abs, wavelength: 500 nm, measurement
time: 60 sec, response: medium)
Power requirements
100, 115, 200, 220, 230, 240 V ±10 %, 105 VA
Dimensions and weight
216(H) ´ 486(W) ´ 441(D)mm (excluding protrusions)
15 kg
Note: Values given for wavelength accuracy, wavelength repeatability, photometric
accuracy, photometric repeatability, baseline flatness, and RMS noise are
those obtained more than one hour after the light source was turned on.