| 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 | 32 - 122 °F (0 - 50 °C), max. 90 % 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) |
| Special Remarks | DR900 replaces the DR890 |
| Spectral Bandwidth | 15 nm filter bandwidth |
| Storage Conditions | -30 - 60 °C, max. 90 % 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 |
