DR 1900 Portable Spectrophotometer

The DR1900 excels in the field because it is the lightest and most compact portable spectrophotometer. Your field testing takes you to potentially dusty and wet conditions where other equipment simply won’t be safe. The DR1900 is built for rugged conditions, and it’s flexible, –accepting the widest range of vial sizes. Built with field use in mind, the DR1900 has a large, clear screen and a simple user interface that makes testing easier than ever in even the most demanding conditions. Easy to hold, and operate, the compact DR1900 is a valuable tool for your field technicians.
Underneath the rugged exterior, the DR1900 has the largest number,– over 220– of the most commonly tested preprogrammed methods already built in. You can also use the easy-to-use interface to create your own methods. Tests are performed with a wavelength range of 340 to 800 nm which make this a field instrument you can use to find results typically only seen in laboratory instruments.
Please note: TNTplus vial test evaluation possible, but without barcode identification & 10 fold measurement and outlier elimination.


• Test What You Need
• Ensure Accuracy in the Field
• Make Testing Easier

Battery Life 15 days (typical) @ 5 readings a day / 5 day week without backlight*
* Backlight usage will decrease battery life
Battery Requirements 4, AA size alkali cells
Cuvette Compatibility 2 10 mm square / 1 inch square and
13 mm / 16 mm / 1 inch round
Data Logger 500 measured values (Result, Date, Time, Sample ID, User ID acc. to GLP)
Detector Silicon photodiode
Dimensions (H x W x D) 98 mm x 178 mm x 267 mm
Display Graphical display 240 x 160 pixel (LCD, b/w, backlit)
Enclosure Rating IP67
Includes Printed Basic Manual, CD with procedure manual (English) in pdf format. Set of vial adapter in carton box. Pkg of 4 AA Alkaline Battery. Dust Cover
Interface USB type Mini IP67 (with optional Module)
Mains Connection 2 110 – 240 V / 50/60 Hz (* optional Module required. May not be available in all regions)
Mains Connection 3 4x NiMH rechargeable Battery (* optional Module required. May not be avaliable in all region)
Operating Conditions 10 – 40 °C (50 – 104 °F), max. 80 % relative humidity (non-condensing)
Operating Humidity Max. 80 % relative humidity (non-condensing)
Operating Mode Transmittance (%), Absorbance and Concentration
Operating Temperature 10 – 40 °C
Optical System Reference beam, spectral
Photometric Accuracy ± 0.003 Abs @ 0.0 – 0.5 Abs
Photometric Linearity < 0.5 % (0.5 – 2.0 Abs)
Photometric Measuring Range 0 – 3 Abs (wavelength range 340 – 800 nm)
Power Module? No
Power supply 4 x AA size Alkaline
4x NiMH rechargeable Battery*
Power supply*: 110 – 240 V; 50/60 Hz
(* optional Module required.
May not be available in all regions)
Region US
Reproducibility ± 0.005 Abs (0 – 1 A)
Sample Cell Compatibility 13 / 16 mm and 1 inch round adapter, 10 x 10 mm 1 inch square and 10x10mm
Source Lamp Xenon Flash
Storage conditions -30 to 60 °C (-22 to 140 °F), max. 80 % relative humidity (non-condensing)
Stray Light < 0.5 %T at 340 nm with NaNO2
Temperature Range 0 – 50 °C (32 – 122 °F)
User Interface Languages English, French, German, Italian, Spanish, Portuguese, Bulgarian, Chinese, Czech, Danish, Dutch, Finnish, Greek, Hungarian, Japanese, Korean, Polish, Romanian, Russian, Slovenian, Swedish, Turkish
User Programs 50
Warranty 12 months
Wavelength Accuracy ± 2 nm (range 340 – 800nm)
Wavelength Calibration Automatic
Wavelength Range 340 – 800 nm
Wavelength Reproducibility ± 0.1 nm
Wavelength Selection Automatic
Weight 1.5 kg
What’s included? Includes: basic printed instrument manual, dust cover, 1-in. square matched glass sample cells, AA alkaline batteries 4/pk, and a four-type adapter set.





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