Visible Spectrophotometer LVS-A21

Visible Spectrophotometer LVS-A21


Visible Spectrophotometer LVS-A21 is single beam bench top device with 325 to 1000 nm wavelength range, and offers spectral bandwidth of 2 nm. Designed with 7 inch multicolor touch-screen and good human-computer interface. Features with T, A, C work mode and Czerny-Turner monochromator type unit. Designed with holographic blazed grating monochromator has the advantages of high wavelength accuracy, good monochromaticity and low stray light. The high accuracy and good reproducibility and stability of measurement reading instrument.





PhotometrySingle Beam
Monochromatic TypeCzerny-Turner
Wavelength range325 to 1000nm
Spectral bandwidth2 nm
Wavelength Accuracy± 2nm
Wavelength Repeatability≤ 1 nm
Focal length160 mm
Photometric Range0 to 100.0 %T 0 to 1.999 A 0 to 1999 C
Photometric Accuracy± 0.5 % T
Photometric Repeatability≤ 0.2 % T
DetectorSilicon Photocell
Grating1200 lines/mm
Stray light≤ 0.1( at 360nm NaNo2 )
Noise100%(T)noise≤0.3%(T) , 0%(T) noise ≤0.2 %(T)
Cuvette holder size10 mm
Dimension580 × 460 × 345 mm
Power consumption120 W
Power supplyAC 220V ±22V 50 Hz ±1 Hz
Gross weight16.5 kg
  • The holographic blazed grating monochromator has the advantages of high wavelength accuracy, good monochromaticity and low stray light
  • Designed with 7 inch multicolor touch-screen and good human-computer interface
  • Sample compartment for 5 to 50 mm cuvettes
  • Equipped with USB port and automatic zero, full scale adjustment
  • Automatic light gate technology to protect photoelectric sensors
  • Adopts microprocessor control technology, qualitative analysis of substances in the visible spectrum, High accuracy of measurement readings, good stability
  • Automatic light gate technology, no need blackbody, to protect the photoelectric sensor
Visible Spectrophotometer is used in high requirement for precision measurement in the research and production of organic chemistry, biochemistry, medical testing, food testing, environmental protection, water testing industries, etc.
Accessories no.Name Qty.
1User manual1 pc
2Glass cuvette 1cm 44 pcs
4Power cable1 pc
5Fuse2 pcs

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