Hach Company - DU-640

Manufactured by  Hach Company
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Complete Integrated Scanning UV/VIS Spectrophotometer

This instrument exemplifies 'ease of use'. Stand-alone use means no need for an external PC to control and collect data. It is all built in! 190nm to 1100 nm range with instantaneous measurement of all wavelengths. Built in multi wavelength reading capability, kinetics, spectral scanning. The basic system provides final answers for applications such as fixed wavelength analysis, wavelength scanning, spectral manipulation, and time-based kinetic/rate determinations.    
Each system comes with a three-button mouse for function and parameter selection and to input numeric and alphanumeric data via the on-screen keypad (the external keyboard is optional). The systems comes with a 14-inch VGA flat panel color monitor.    
Programs for fixed wavelength, wavelength scanning, time-based kinetic/rate determination, subtraction/addition, and manipulation of spectra are provided with each instrument. Non-volatile memory is standard for storage of methods and data.
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Features of DU-640

The basic system provides final answers for applications such as:    

  • fixed wavelength analysis    
  • wavelength scanning    
  • spectral manipulation and time-based kinetic/rate determinations.    

Tailor the system to your needs with easy-to-use but powerful and sophisticated applications software packages (optional add-ons). Obtain reliable and accurate results in seconds without the need for an external computer.

General Specifications
Bandwidth< 1.9 nm
Depth 21 in
Height24 in
Width 27 in
Power Requirements 110/120V, 50/60 Hz, 200 watts
Weight81 lbs
Wavelength Range190 to 1100 nm
Scanning Speed120, 240, 600, 1200, 2400 nm/minute
Photometric Noise< 0.0002 A RMS
Stray Light< 0.05% T
Additional Specifications

Wavelength Setability: 0.1 nm increments    
Wavelength Accuracy: ± 0.2 nm    
Wavelength Repeatability: ± 0.1 nm    
Photometric Readout:    
- 0.300 to 3.000 A or    
0.0 to 200.0% T    
Photometric Accuracy: ± 0.005 A    
Stability: < 0.003 A/hr    
RMS Baseline Flatness: ± 0.001 A    
Data Collection Rate: 20 samplings/second    

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