DW-N4/DW-N4S UV-VIS Spectrophotometer

DW-N4 Series UV-VIS Spectrophotometer, being combined with an ARM-processed core, has test speeds and functions possessed by high-end instruments.  The instrument can meet the requirement of quantitative analysis for most samples conducted within the visible and ultraviolet-visible spectral range in conventional laboratories and is suitable for use in medicine and health, clinical examination, biochemical, petrochemical, environmental protection, quality control departments, colleges, and universities and others.

● Automatic wavelength settings 
● 7-inch multi-color touch-screen
● Sample compartment for 5-100mm cuvettes 
● Equipped with USB port
● Precise automatic T/A changeover 
● Automatic zero and full-scale adjustment 
● Software optional
● Direct concentration read-out and concentration factor setting function

Features of DW-N4/DW-N4S UV-VIS Spectrophotometer

● 7-inch multi-color touch-screen and patented technology to achieve simple and effective human-computer interaction with a clear display of test data.
● A built-in thermal printer (DW-N4S only) to achieve printout of test results so as to facilitate the formation and retention of data reports.
● A USB communication port and UVWIN8 professional data processing software (optional) to achieve data processing and mapping functions and storage of massive amounts of data files, and to facilitate the secondary development by customers.
● Automatic wavelength setting, fast and accurate.
● Functions such as wavelength scanning (S model only), kinetic time scanning, automatic wavelength, linear regression, direct read-out of concentration, peak detection, regular printing and etc.
● Advanced power shut-down protection measures to memorize detected data, regression equations, and instrument correction parameters to achieve fast initialization.
● Tungsten lamp and deuterium lamp (UV model only) with lifetime protection.

Specifications of DW-N4/DW-N4S UV-VIS Spectrophotometer

Model DW-N4 DW-N4S
Photometry Split Beam
Monochromator Type Czerny-Turner
Focal Length 160mm
Grating 1200 lines/mm
Detector Silicon Photocell
Spectrum Bandwidth 2nm
Wavelength Setting 7-inch color touch-screen
Wavelength Range 190-1100nm
Wavelength Accuracy ±1nm
Wavelength Repeatability ≤0.5nm
Scanning Speed \ Fast-Medium-Slow
Stray Light ≤0.1%T (at 220nm NaI, 360nm NaNo2)
Photometric Range 0.0-200.0% T
0.301-4.000 A
0.000-9999 C
Photometric Accuracy ±0.5% T
±0.004 Abs (0-0.A)
±0.008 Abs (0.5-A)
Photometric Repeatability ≤0.2% T
0.002 Abs (0-0.5A)
0.004 Abs (0.5-1A)
Noise 100% (T) noise≤0.2%(T),0% (T) noise≤0.1%(T)
Power AC220V±22V 50Hz±1Hz, 180W
Packaging Size 630mm X 535mm X 405mm 0.14M3 21kg

Standard Accessories of DW-N4/DW-N4S UV-VIS Spectrophotometer

  • Operation manual 1pc
  • Thermal Plotter 1pc (DW-N4S only)
  • Glass cuvette 10mm 4pcs
  • Quartz cuvette 10mm 2pcs
  • Power cable 1pc
  •  Fuse 2pcs
  • Cuvette holder 10mm

Optional Accessories of DW-N4/DW-N4S UV-VIS Spectrophotometer

  • UV WIN8 station pro software
  • Cuvette holder 50mm 100mm
  • Cuvette 20mm 30mm 50mm 100mm