Lightwave UV/Vis Diode Array Spectrophotometer
6
4 Specifications
Specification
S2000 Lightwave
Optical arrangement
Single beam, diode array (512 pixel) using
Rowland Circle optics with flat field corrected
concave grating.
Wavelength range
200 –825nm
Spectral bandpass
5nm
Resolution/Bandwidth 5nm
Stray Light
<0.1% at 220nm NAI and 340nm NaNO
2
Wavelength Accuracy
±1.5nm
Wavelength reproducibility Better
than ±0.6nm
Photometric modes
Abs, %T, Conc
n
,
∆
Abs/min,
∆
Abs*factor/min
Photometric range
-0.3 - 1.999A
0 - 199.9%T
Photometric Reproducibility ±0.002Abs (0 to 0.5Abs)
±0.007Abs (0.5-1.0Abs)
Photometric Accuracy
±0.003Abs (0 to 0.5Abs)
±0.01Abs (0.5-1.0Abs)
Slew rate
Full spectrum measured simultaneously,
measurement time <5 sec
Zero stability
±0.003Abs/hour after 20min warm up
Noise
±0.001Abs at 0A 500nm
Modes of operation
Scanning
Ratio (A260/A280 user adjustable)
Multi Wavelength
Absorbance
% Transmission
Concentration (linear or curved calibration)
Kinetics
Programmable - up to 99 methods stored in
battery backed memory
Display
240 x 128 pixel dot matrix LCD
Output
RS232 to WPA printer for text and graphics
RS232 ASCII for PC data logging
Light sources
Pulsed Deuterium and Tungsten halogen lamps
giving life in excess of 15000 hours
Sample compartment
40mm pathlength. Accepts 10mm and 40mm
cuvettes, 15mm beam height. Accepts standard,
semi-micro, micro and ultra micro cuvettes down
to 50/70
µ
l.
Dimensions (l x w x d)
Approx. 380 x 140 x 275 mm
Weight
4.5kg
Electrical Requirements
90-250V 50/60Hz Max 100VA