DW-721G VIS Spectrophotometer

DW-721G VIS Spectrophotometer has been widely used in colleges and enterprises for general quantitative analysis and experiments based on absorbance measurements.

Standard Accessories:

  • Operation manual 1pc
  • UV WIN7 software 1pc
  • Glass cuvette 10mm 4pcs
  • Power cable 1pc
  • Fuse 2pcs
  • Cuvette holder 50mm 1pc

Optional Accessories

  • Cuvette holder 100mm
  • Cuvette 20mm 30mm 50mm 100mm

Main Features of DW-721G VIS Spectrophotometer

  1. Sample compartment for 5-100mm cuvettes
  2. Equipped with RS232 port
  3. Precise automatic T/A changeover
  4. Automatic zero and full-scale adjustment
  5. Direct concentration read-out and concentration factor setting function
  6. Software optional
  7.  High-quality silicon photometric diode detector and 1200 lines/mm diffraction grating ensure high-quality accuracy and precision.
  8. Backlit LCD display for an easy readout.
  9. Automatic 0A and 100%T.
  10. Easy switching of transmittance, absorbance, and concentration modes, just by pressing one key.
  11. Direct concentration read-out and concentration factor setting function.
  12. Large sample compartment, for 5 – 100mm path length cuvettes with optional holders.
  13. Easy to change the halogen lamp or deuterium lamp by the user himself.

Specifications of the DW-721G

PhotometrySplit Beam
Monochromator TypeCzerny-Turner
Focal Length160mm
Grating1200 lines/mm
DetectorSilicon Photocell
Spectrum Bandwidth5nm
Wavelength SettingManual Turn Knob
Wavelength Range340-1000nm
Wavelength Accuracy≤1nm
Stray Light  ≤0.5%T( at 360nm NaNo2 )
Photometric Range0.0-100.0% T, 0.000-1.999 A, 0.000-1999 C
Photometric Accuracy±0.5% T, ±0.004 Abs (0-0.5A), ±0.008 Abs (0.5-1A)
Photometric Repeatability≤0.2% T, 0.002 Abs (0-0.5A), 0.004 Abs (0.5-1A)
Noise100%(T)noise≤0.3%(T) , 0%(T)noise≤0.2%(T)
Power AC220V±22V 50Hz±1Hz, 130W
Packaging Size560mm X 490mm X 285mm 0.08M3 14kg

DW-721G VIS Spectrophotometer Display

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