Overview
WD9301B Portable water quality tester is a professional water quality testing equipment of JINGQI brand. It adopts the separation design of digestion instrument and measuring instrument to ensure that the measurement accuracy is not affected. The instrument has the function of PID automatic temperature control and timing, and supports the rapid determination of various water quality parameters such as COD, ammonia nitrogen and total phosphorus. It is suitable for field and laboratory environments.
Features
1. Digestion instrument and measuring instrument design separately, does not affect the measurement accuracy, temperature PID automatic temperature control, timing.
2. Adopting a high-performance ultra-low power 16-bit microcontroller, the instrument's standby time can reach more than 6 months.
3. Save time and improve detection efficiency.
4. Equipped with Cold Illuminant and Narrow Band Interference Optical inspection system, Optical inspection stability is good.
5. Equipped with data power-off protection function to prevent data loss.
6. 30 standard Linear dispersions and 199 measurements can be stored, including time-stamped measurements, light absorption and light transmitances.
7. With USB port, it can be connected to a computer for record reading or data printing.
8. The main machine shell adopts molded ABS material, IP65 design, good waterproof and dustproof performance.
Principle
The water quality meter is based on the principle of Optical inspection analysis. The absorption value and light transmitance of water samples are measured by cold Illuminant and narrow-band interference Optical inspection systems, and the water quality parameters are calculated by combining standard Linear dispersion. The digester uses PID automatic temperature control technology to digest samples at specific temperatures (such as COD 165 ° C, total phosphorus 120 ° C) and time to ensure complete reaction, and then accurate measurement is carried out by the meter.
Steps
Prepare the water sample and perform digestion treatment, and set the digestion temperature and time according to the parameters (e.g. COD 15 minutes, total phosphorus 30 minutes).
2. Put the digested sample into the measuring instrument and start the measurement program.
3. The instrument automatically reads the absorption value and light transmitance, and calculates the water quality parameters.
4. Connect to the computer through the USB port to read or print stored data.
Notice
• Ensure that the instrument is in normal working condition before use and avoid operating in extreme environments.
• Pay attention to temperature control during the digestion process to prevent overheating or temperature fluctuations from affecting the accuracy.
• Regularly calibrate instruments to ensure measurement accuracy.
• Waterproof and dustproof design is IP65, but it is still necessary to avoid long-term immersion or exposure to harsh environments.
• Backup data in time after storage to prevent data loss due to accidental power outages.
