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Apera DO850 | Portable Optical Dissolved Oxygen Meter Kit | DO 0 to 20.00 mg/L, ±2% accuracy, IP57
The DO850 is a portable optical dissolved oxygen meter with a luminescent optical sensor that does not consume oxygen during measurement. It reads 0 to 20.00 ppm (mg/L) or 0 to 200.0 % with automatic temperature and barometric compensation, and is supplied as a kit in a carrying case.
Key features
- Optical DO sensor: no oxygen consumed, no stirring needed, no electrolyte or cathode/anode maintenance
- DO 0 to 20.00 mg/L (ppm) and 0 to 200.0 %, accuracy ±2% of reading
- Quick calibration for saturated oxygen and zero oxygen
- Automatic temperature (0 to 50 °C) and barometric compensation (60 to 120 kPa)
- Large backlit LCD showing DO and temperature; replaceable membrane cap rated 8000 hours
- Kit includes DO850 meter, DO803 DO probe (3 m cable), calibration sleeve and carrying case
- Specifications
- Downloads
| Part Number | DO850 |
| Brand | Apera Instruments |
| Parameter | DO/temp. |
| DO Range | 0 to 20.00 ppm (mg/L); 0 to 200.0 % |
| DO Resolution | 0.01/0.1 mg/L (ppm); 0.1/1 % |
| DO Accuracy | ±2% reading or ±2% saturation, whichever is greater; ±2% reading or ±0.2 mg/L, whichever is greater |
| Response Time | ≤30 s (25 °C, 90% response) |
| DO Calibration Points | Saturated oxygen & zero oxygen |
| DO Temperature Compensation | Automatic, 0 to 50.0 °C |
| Pressure Compensation | Automatic, 60 to 120 kPa |
| Temperature Range | 0 to 50.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.5 °C |
| Display | LCD (white backlight) |
| Stable Reading Indication | Icon |
| IP Rating | IP57 waterproof |
| Power | AA battery x3 (1.5V x 3) |
| Dimension / Weight (meter only) | 88x170x33 mm / 313 g |
| Salinity Compensation | Manual, 60 to 120 kPa |
| Automatic Hold | Yes |
| Dimension / Weight (kit) | 360x270x76 mm / 1.5 kg |
| What's Included | DO850 meter, DO803 DO probe (3 m cable), calibration sleeve, carrying case |
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