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Spectrophotometers: 1200 Series

UNICO SQ-3802 is a split beam design. It is a stand-alone model with 1.8 nm fixed bandwidth and has all the features that SpectroQuest line offers in a stand-alone unit. The second detector is simultaneously monitoring the system stability to optimize measurement accuracy. It provides excellent performance for measurements in the range of 190nm to 1100nm. It has a large angled LCD screen with viewing contrast adjustment. The large sample compartment accommodates a wide range of cell holders and accessories including peristaltic sipper and peltier system. Optional PC download software and PC Windows® application software make this a versatile instrument.

SPECIFICATIONS SpectroQuest 3802
Optical Specifications
Wavelength Range 190 - 1100 nm
Spectral Bandwidth 1.8 nm
Monochromator Split 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 4-position Cell Holder
Analogue/Digital Output Digital, RS232 Serial, Centronics Parallel
Dimensions 620(L) x 400(W) x 280(H) mm
Weight 23 kg / 50lbs
Shipping Dimensions 720(L) x 525(W) x 370(H) mm
Shipping Weight 27 kg / 59 lbs
Power Requirements 115V/60Hz or 230V/50Hz, switchable
Operating Temperature Room temperature: 22 ±2°C
Humidity Range   less than 85%
Safety Certificate CE


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