Description
Overview
GAOTek Dissolved Oxygen Meter with High Accuracy (Hold Function) is designed to measure DO of the liquids in the range of 0.00 mg/L~20.00 mg/L. Its auto-hold function freezes stable reading for easy viewing and recording. Manual salinity and barometric pressure compensations improve the accuracy of measurement. The meter’s system menu allows setting the 9 parameters, including the concentration unit, resolution, number of calibration points, stability condition, etc. This instrument is suitable for research and education, water and wastewater treatment and other industrial applications.
Key Features
- This device is equipped with a large LCD display.
- Help message as an operational guide that helps you quickly begin using the meter.
- Stability indicator automatically shows current measurement status.
- Selectable temperature unit (°C or °F) meets different application requirements.
- Calibration Due Reminder prompts the user to calibrate the meter regularly.
- 1 or 2 points calibration using the air-saturated water and zero oxygen solution.
- Manual salinity and barometric pressure compensations improve the measurement accuracy.
- Automatic Temperature Compensation ensures accurate reading over the entire range.
- Auto-Hold function freezes stable reading for easy viewing and recording.
- System menu allows setting the 9 parameters, including the number of calibration points, resolution, stability condition, concentration unit, etc.
- Reset feature automatically resumes all settings back to factory default options.
- Expanded memory stores and recalls up to 500 readings.
- Built-in real-time clock stamps stored data to meet GLP standard.
- Stored data can be transferred into computer by USB communication interface.
Technical Specifications
| Dissolved Oxygen | |
| Range | 0.00 mg/L to 20.00 mg/L (or ppm) |
| Accuracy | ± 0.2 mg/L |
| Resolution | 0.01 mg/L |
| Calibration Points | 1 or 2 points |
| Temperature Compensation | 32 °F to 122 °F ( 0 °C to 50 °C) |
| Pressure Correction | 60.0 kPa to 12.5 kPa, 450 mmHg to 850 mmHg |
| Salinity Correction | 0 g/L to 50 g/L |
| % Saturation of Oxygen | |
| Range | 0.0% ~ 200.0 % |
| Accuracy | ± 2.0 % |
| Resolution | 0.1 %, 1% |
| Others | |
| Hold Function | Manual or Automatic endpoint detection |
| Calibration Due | 0 to 31 days |
| Stability Conditions | Low or High |
| Power Off | Manual or Automatic (10, 20, 30 minutes) |
| Reset Function | Yes |
| Memory | Stores up to 500 data sets |
| Output | USB Communication Interface |
| Connector | 6 Pin Mini Plug |
| Display | LCD |
| Power Requirement | DC 5 V, using AC adapters, 220 V AC/50 Hz |
| Dimensions | 8.27 in x 7.40 in x 2.36 in (210 mm x 188 mm x 60 mm ) |
| Weight | 3.31 lbs (1.5 kg) |
Applications:
- Research and education
- Aquaculture
- Water and wastewater treatment
- Surface and groundwater monitoring
- Pond water and aquarium
- Other industrial applications
Accessories:
- Dissolved Oxygen Probe
- DC 5 V Power Adapter
- Electrolyte Solution
- Membrane Cap
- USB Cable
