Overview
The HANNA HI9142 dissolved oxygen meter is a rugged, waterproof, portable meter designed for immediate field analysis and can withstand severe weather conditions such as cold, rain, snow, dust and Humidity. It is calibrated with HI7040 zero oxygen solution and 100% air-calibrated with a polarographic probe (HI76407/4) accurate to 0.3 ppm and equipped with 4-meter cable for easy measurement in hard-to-reach locations. Suitable for water quality and wastewater dissolved oxygen determination in various industries, using high-performance Polarographic Sensor, generating current through a specific dissolved oxygen film to ensure stable and accurate measurement, Measurement mode is mg/L (ppm) O2, support Automatic calibration or 1 point, 2 point calibrated.
Features
1. Waterproof design, sturdy and durable;
2. Large screen background light LCD, operation guide display;
3. The battery display icon reminds to replace the battery in time;
4. Automatic compensation for height, salinity and temperature;
5. Automatic calibration function in air;
6. Polarography dissolved Oxygen electrode, suitable for field measurement;
7. The measurement results are expressed in ppm (mg/L).
Principle
The dissolved oxygen meter uses the principle of Polarography, and uses the high-performance Polarographic Sensor Dissolved Oxygen Electrode to generate current through the specific dissolved oxygen film, thus ensuring the measurement Stability and accuracy. Measurement mode is mg/L (ppm) O2, support automatic temperature compensation and Adjustment.
Applications
Determination of water quality and wastewater dissolved oxygen in various industries
Steps
1. Manual single point or double point calibrating;
2. Zero point calibrating (HI7040 zero oxygen solution is recommended);
3. Polarization in air is 100% calibrated.
Notice
- Operating Environment 0 to 50 ° C (32 to 122 ° F) with a maximum relative humidity of 95%;
- The dissolved oxygen membrane needs to be installed correctly to ensure accurate calibrating and measurement;
Replace the battery in a timely manner to maintain sufficient power.
- Avoid use in extremely harsh conditions to prevent damage to the housing from affecting performance.
