Description
Ezilab's Dissolved Oxygen Meter EZL-DDO121 serves environmental laboratories that need desktop dissolved oxygen measurement with automatic temperature and pressure compensation. Covering 0-20 mg/L, this dissolved oxygen analyzer measures the amount of oxygen dissolved in water samples, a key parameter for aquatic health assessment, wastewater treatment monitoring, and general water quality testing where oxygen availability directly affects biological activity in the tested water body. Auto compensation is the meaningful feature here — dissolved oxygen solubility varies with both water temperature and atmospheric pressure, so without automatic correction for these factors, raw readings would need manual adjustment for accurate interpretation, and auto compensation removes that extra calculation step, giving technicians a directly usable result regardless of ambient conditions during testing. The 0-20 mg/L range covers the practical span most water samples fall within, from oxygen-depleted wastewater or stagnant water at the low end through well-aerated, healthy water sources at the higher end. Environmental labs monitoring stream health, wastewater treatment plant performance, or aquaculture water quality get accurate, compensated readings without needing to account for temperature and pressure variables manually during data interpretation. EziLab's Dissolved Oxygen Analyzer and Dissolved Oxygen Meter cover compensated water quality testing needs across USA environmental laboratory settings.
Specifications
| Parameters | Concentration, Saturation, Temperature |
|---|---|
| DO Range | 0.00 to 20 mg/L (ppm) |
| Resolution | 0.01/0.1 |
| DO Accuracy | ± 0.3 % ± 0.4 mg/L |
| DO Saturation | 0.0 to 200 % |
| Saturation Resolution | 0.001 |
| Saturation Accuracy | ± 2.0 % FS |
| Temperature Measuring Range | -10 °C to 110 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ± 0.1 °C |
| Temperature Compensation Range | 0 °C to 100 °C (Automatic) |
| Salinity Compensation Range | 0.0 to 50.0 g/L |
| Air Pressure Compensation Range | 80 to 105 kPa |
| Air Pressure Resolution | 1 |
| Air Pressure Accuracy | ± 2 % |
| Stability | ± 0.07 mg/L/1h |
| Response Time | ≤ 30 s (25 °C, 90 % Response) |
Features
Applications
Standard Configurations
