DW-722N VIS Spectrophotometer

DW-722N VIS Spectrophotometer has the holographic blazed grating monochromator has the advantages of high wavelength accuracy, good monochromaticity and low stray light.

● 7-inch multi color touch-screen, good human-computer interface. 
● Linear regression method and coefficient method are added to the concentration test method. 
● USB interface is added, and large capacity memory can store 30 concentration curves.
● Adopt microcomputer measurement system, with high conversion accuracy of T-A, automatic adjustment of 
● 0% T and 100% T, concentration factor setting and concentration direct reading.
● High accuracy, Good Reproducibility and Stability of Measurement Readings.
● Automatic light gate technology, No need blackbody, to protect the photoelectric sensor

DW-722N Brochure

Features of DW-722N VIS Spectrophotometer

  • Sample compartment for 5-50mm cuvettes
  • Precise automatic T/A changeover
  • Automatic zero and full scale adjustment 
  • 7-inch multi color touch-screen 
  • Equipped with USB port
  • Direct concentration read-out and concentration factor setting function
  • Automatic light gate technology to protect photoelectric sensors

Specifications of DW-722N VIS Spectrophotometer

PhotometrySplit Beam
Monochromator TypeCzerny-Turner
Focal Length160mm
Grating1200 lines/mm
DetectorSilicon Photocell
Spectrum Bandwidth2nm
Wavelength SettingManual Turn Knob
Wavelength Range325-1100nm
Wavelength Accuracy±2nm
Wavelength Repeatability≤1nm
Stray Light≤0.1%T( at 360nm NaNo2 )
Photometric Range0.0-200.0% T
-0.097-4.000 A
0.000-9999 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)
PowerAC220V±22V 50Hz±1Hz, 120W
Packaging Size580mm X 460mm X 345mm 0.1M3 16.5kg

Standrad Accessories

Operation manual1pc
UV WIN8 Spectrum data processing software1pc
Glass cuvette 10mm4pcs
Power cable1pc
Fuse2pcs
Cuvette holder 10mm1pc

Optional Accessories

Cuvette holder50mm
Cuvette20mm 30mm 50mm