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