Double Beam UV-VIS Spectrophotometer

Salient Features

  • Wide wavelength range, satisfying requirements of various fields
  • Fully automated design, realizing the simplest measurement & satisfying the requirements of pharmacopoeia.
  • Maximum of 9 wavelengths & 7 samples scan be measured at one time.
  • Automatic change-over between W lamp & D 2 lamp
  • Optimized optics and large scale integrated circuits design, light source and receiver from world famous measurement all add up to high performance and reliability
  • Rich measurement methods: wavelength scan, time scan, multi-wavelength determination, multi-order derivative determination, double-wavelength method and triple-wavelength method etc., meet different measurement requirement.
  • Automatic 10mm 8-cell holder
  • Data output can be obtained via a printer port and a RS-232 interface
  • Parameters and data can be saved for user's convenience
  • PC controlled measurement can be achieved for more accurate and flexible requirement


Model No. SI-332
Performance Optimum
Speciality Rust resistance
Condition New
Features Long functional life
Efficiency Consistent

Technical Data

Wavelength Range 190-1100 nm
Spectral Bandwidth 1 nm
Working Mode T,A,C,E
Optical System Double beam
Scanning Speed Fast / Medium / Slow
Photometric Range -0.3 - 3.5 A, 0 to 220 %T
Wavelength Accuracy +0.3 nm
Wavelength Reproducibility < 0.10 nm
Photometric Accuracy + 0.3% T (0-100% T)
+0.002 A (0-0.1 A)
Photometric Reproducibility < 0.15 % T
Stray Light < 0.1% T (Nal. 220nm, NaNO2 340 nm)
Baseline Flatness + 0.002 A
Stability < 0.001A/h (at 500 nm, after warming up)
Noise +0.001A (at 500 nm, after warming up)
Detector Dual Silicon Photodiode
Display 6 inches high light blue LCD
Power AC:220V + 10%, 50 Hz.
Dimensions 630 x 470 x 210 mm
Weight 26 Kg
Glass Cells 16 No.
Quartz Cells 4 Nos.
Fuse 3 Nos.
Instrument Cover 1 No.
Software CD 1 No.
RS 232 Cable 1 No.
Operation Manual 1 No.