Double Beam UV-Vis Spectrophotometer US-B40

rewrite Double Beam UV-Vis Spectrophotometer US-B40 a bench top device with 190 nm to 1100 nm wavelength range, and offers spectral bandwidth of 0.5/1/2/4 nm. Equipped with 16 mm thick rigid aluminium board as optical base, which highly ensures stability and reliability. Features dual optical path, dual beam optical system, dual detector, uses high performance imported prism grating, Tungsten Lamp & Deuterium Lamp as light source, and Imported silicon photodiode as detector with stronger stability, reliability, delivers results that are more accurate. Designed with 10 inch TFT Touch colored screen, can work on powerful software as well, and it performs functions like Photometric measurement, Quantitative measurement, Kinetics, Spectrum scan, DNA/Protein test, Multi-wavelength test etc. Three operation modes are available; they are Host, Computer and Mobile phone (App). This advance, high quality spectrophotometer supports USB data transfer and storage system.

Wavelength range190 to 1100 nm
Spectral bandwidth0.5/1/2/4 nm
Wavelength Accuracy± 0.1nm (D2, 656.1 nm), ± 0.3 nm full range
Wavelength Repeatability≤ 0.1 nm
Optical systemDouble beam grating 1200 lines/mm
Photometric Range0 to 200 %T, -0.3 to 3.0 A, 0 to 9999 C (0 to 9999F)
Photometric Accuracy
± 0.2T (0 to 1009 % T)
± 0.002 Abs (0 to 0.5 Abs)
± 0.004 Abs (0.5 to1.0 Abs)
Photometric Repeatability
≤ 0.05 % 6T (0 to100 % 6T)
0.001 Abs (0 to 0.5 Abs)
0.002 Abs (0.5 to 1.0 Abs)
DetectorImported silicon photodiode
Light sourceImported Deuterium and Tungsten lamp
Stray light≤ 0.03 % T @ 220 nm, 360 nm
Stability± 0.0004 A/h @ 500 nm
Data Output PortUSB drive, USB host, RS232
Print PortUSB drive, USB host, RS232
Power supplyAC 220 V, 50 Hz or 110 V, 60 Hz
Noise± 0.0004
Baseline flatness± 0.001 A
Work modeT, A, C, E
Scanning speedHi, Med, Low (Max. 3000 nm/min)
Wavelength settingAuto
Cuvette holder10 mm single hole cell holder
Display10.1 inches TFT colored capacitive touch screen
Dimension630 × 430 × 210 mm
Gross weight28 kg

  • Work modes include T, A, C, E, and scanning speed range offers Hi, Med, Low (Max. 3000 nm/min)
  • Designed with a double beam 1200 lines/mm optical system
  • In-house massive memory capable of storing up to 1024 M for test data & working curves
  • Features a 10.1-inch high-resolution TFT colored capacitive touch screen and Windows Graphic interface
  • Large sample chamber accommodates 5 to 100 mm cuvettes of all kinds
  • Equipped with powerful functions including Photometric measurement, Quantitative measurement, Kinetics, Spectrum scan, DNA/Protein test, Multi-wavelength test, etc.
  • USB port facilitates data transfer, easily exportable to Excel for further processing
  • Socket type deuterium and tungsten lamp enables lamp switching without optics debugging and easy replacement

It finds widespread application in research facilities, laboratories, educational institutions, pharmaceuticals, hospitals, and medical fields. Its primary uses include diagnosing diseases and detecting impurities in organic compounds.


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