| Battery Life | 6 months (typical) @ 5 readings a day / 5 days / week without
backlight**
** Backlight usage will decrease battery life. |
| Battery Requirements | 4, AA size alkali cells |
| Data Logger | 500 measured values (Result, Date, Time, Sample ID, User ID) |
| Detector | Silicon photodiode |
| Dimensions (H x W x D) | 231 mm x 96 mm x 48 mm |
| Display | Graphical display 240 x 160 pixels (Backlit) |
| Enclosure Rating | IP67 (vial cover closed) |
| Includes | DR 900 Colorimeter, two 1-inch glass sample cells marked at 10, 20
and 25 mL, two 1 cm plastic sample cells, 1 x 16-mm COD/Test 'N
Tube™ adapter, 4 AA alkaline batteries, printed multilingual
instrument manual, USB Mini to USB Cable, European CE mark. |
| Interface | USB type Mini IP67 |
| Manual Languages | English, French, German, Italian, Spanish, Portuguese, Bulgarian,
Chinese, Czech, Danish, Dutch, Finnish, Greek, Hungarian, Japanese,
Korean, Polish, Romanian, Russian, Slovenian, Swedish, Turkish |
| Operating Conditions | 10 - 40 °C (50 - 104 °F), max. 80 % relative humidity (non-
condensing) |
| Operating Humidity | Max 90 % relative humidity (non-condensing) |
| Operating Mode | Transmittance (%), Absorbance and Concentration |
| Operating Temperature | 10 - 40 °C (50 - 104 °F) |
| Optical System | 0 / 180 deg transmittance |
| Photometric Accuracy | ± 0.03 Abs |
| Photometric Linearity | ± 0.002 Abs (0 - 1 Abs) |
| Photometric Measuring Range | 0 - 2 Abs |
| Power Supply | 4 x AA size alkaline cells
4x NiMH rechargeable Battery*
(*External charger required) |
| Reproducibility | ± 0.005 Abs (0 - 1 A) |
| Sample Cell Compatibility | 1 inch round or 16 mm round (with adapter) |
| Source Lamp | Light Emitting Diode (LED) |
| Spectral Bandwidth | 15 nm filter bandwidth |
| Storage Conditions | -30 to 60 °C (-30 - 140 °F), max. 80 % relative humidity
(non-condensing) |
| Supported Chemistry | Hach tests |
| 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 | Custom programming 10 |
| Warranty | 12 months |
| Wavelength Accuracy | ± 1 nm (fixed, varies with model) |
| Wavelength Calibration | N/A |
| Wavelength Range | 420 nm, 520 nm, 560 nm, 610 nm |
| Wavelength Selection | Automatic |
| Weight | 0.6 kg (1.3 lbs) with battery |
| What's included? | Includes: DR900 instrument, USB cable with mini-USB connector, 4-AA
alkaline batteries, 2 glass sample cells 1-inch (25 mm) round with
10, 20, 25-mL marks, 2 sample cells 1 cm/10 mL, sample cell adapter
and multilingual user manual |
