Overview
The WD9201B Portable water quality tester is a professional water quality testing equipment of the JINGQI brand. It adopts a separate design of digestion instrument and measuring instrument to ensure measurement accuracy. The instrument can measure key water quality parameters such as COD and ammonia nitrogen, and is characterized by high performance, low power consumption and portability.
Features
1. Digestion instrument and measuring instrument are separated, does not affect the measurement accuracy, temperature PID automatic temperature control, timing.
2. High-performance ultra-low power consumption 16-bit microcontroller, instrument standby time can reach more than 6 months.
3. Operation saves time.
4. Cold Illuminant, Narrow Band Interference Optical inspection system, Optical inspection stability.
5. Data power-off protection function.
6. 30 standard Linear dispersions and 199 measured values can be stored each (including measurement values with time labels year, month, day, hour, minute, second, light absorption value and light transmitance).
7. With a USB port, it can be connected to a computer for recording and reading or printing out stored data.
8. The main machine shell adopts molded ABS material, IP65 design, good waterproof and dustproof performance.
Principle
The instrument adopts cold Illuminant and narrow-band interference Optical inspection system for water quality parameter measurement, and performs PID automatic temperature control treatment on the sample through digestion instrument. Combined with high-performance single-chip microcomputer to analyze the absorption value and light transmitter, the accurate determination of COD and ammonia nitrogen and other indicators is realized.
Steps
1. Connect the digestion instrument and the measuring instrument.
2. Sample digestion using PID automatic temperature control function.
3. Put the sample into the measuring instrument for measurement.
4. Connect to the computer through the USB port to read or print data.
Notice
• Ensure that the instrument is used in a waterproof and dustproof environment.
• Optical inspection system stability is checked regularly.
• Pay attention to the limit of anti-chlorine interference, and the chlorine concentration should not exceed 2000mg/L during COD measurement.
• Avoid operating the instrument under extreme temperature or humidity conditions.
