DA7200 NIR Analyzer: Instant Water Activity*

DA7200

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*For sale in the USA only.

The DA7200 measures water activity by shining a bright light on a sample and collecting the reflected spectrum of light. Reflected light from a sample is characteristic of the composition of that sample. In other words, a sample with a water activity of 0.300 will reflect light differently than a sample with a water activity of 0.320.

The DA7200 measures this reflected light and converts it to water activity values using specialized software. Since there is no measurement of the air above the sample, practically no equilibration time is needed. In addition, because the method of detection travels at the speed of light along a fiber-optic cable, the time for a water activity measurement is almost instantaneous.

The DA7200 requires a product specific calibration. Once programmed, the water activity of your product is measured with the touch of a button. No equilibration is necessary.





 Specifications  
 Warranty:
 One year parts and labor. 		 Accuracy:
  ± aw
 Measurement Speed:
 6 seconds 		 Net Weight:
 21 kg (46 lb)
 Range:
 0.100 to 1.000 aw 		 Resolution:
 ± 0.001 aw
 Dimensions:
 0.556 x 0.375 x 0.370 m
 (with Touch Screen in upright position) 		 Reference:
 Ceramic Automatic
 Sensors:
 NR 		 Operating Platform:
 Windows XP, Touch Screen
 Internal Computer:
 1 GHz, 256 MB RAM, 20 GB HD 		 Data/Spectral Collection Rate:
 Approx. 100 spectra/sec
 Communication Ports:
 2xUSB, 1xParallel, 1xLAN, 1xKeyboard, 1xMouse,
 1xExternal Monitor 		 Power Requirement:
 115/230 VAC, 50/60 Hz, 115 W
 Noise:
 < 0.00006 AU over 3 sec measuring time 		 Wavelength Range:
 950-1650 nm
 Wavelength Accuracy:
 < 0.3 nm 		 Wavelenth Stability:
 < 0.2 nm/year
 Ambient Temperature:
 5 to 35 °C (41 to 95 °F) 		 Optics:
 F/3
 Lamp Lifetime:
 Approx. 5000 hrs, operator exhangeable 		 Grating:
 Gold-coated ruled stationary grating
 Sample Dish Capacity:
 Large sample cut - 154 cm2
 (measured 108 cm2)
 Small sample cup - 44 cm2
 (measured 44 cm2 		 


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