اسپکتروفتومتر دو پرتوئی مدل SQ 4802 ساخت یونیکو آمریکا با مشخصات زیر:

Wavelength Range:  190 - 1100 nm

Spectral Bandwidth:  1.8 nm
Monochromator:  Double beam Littrow type, grating 1200 lines/mm
Wavelength Accuracy:  ±0.3 nm
Wavelength Repeatability:  ±0.2 nm
Wavelength Calibration:  automatic at start
Light Source:  Tungsten Halogen/Deuterium  Lamp
Detector:  Solid Silicon Photodiode
Photometric Readout:  1/4 VGA 320X240 pixels backlit LCD
Photometric Range:  0 - 200%T
-0.3 - 3.0A
0 - 9999C
Photometric Accuracy:  ±0.3%T
Zero Drift : < 0.002A per hour after warm-up
Baseline Flatness:  ±0.004A
Stability:  0.001A/h at 500 nm
Stray Light:  < 0.15%T
Scanning Speed : Hi, Med., Low. Max. 1000 nm/min
Physical Characteristics
Standard Sample Holder:  Single Cell Holder for 10mm cell, reference and sample
Ports:  USB, Parallel port
Dimensions:  620(L) x 400(W) x 280(H) mm
Weight:  24 kg / 53lbs
Shipping Dimensions:  720(L) x 525(W) x 370(H) mm
Shipping Weight:  28 kg / 62 lbs
Power Requirements:  115V/60Hz ( SQ4802) or 230V/50Hz (SQ4802E), switchable
Operating Temperature:  Room temperature: 22 ±2°C
Humidity Range:  less than 85%

Safety Certificate:  CE