Overview
The CD-5B COD tester is a professional water quality testing equipment of JINGQI brand. It is designed separately from the digestion instrument and the tester to ensure that the measurement accuracy is not affected. The instrument has a high-performance ultra-low power consumption single-chip microcomputer with long standby time and fast operation, which is suitable for a variety of water quality COD testing needs.
Features
1. Digestion instrument and measuring instrument design separately, 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. Time-saving operation, COD digestion only takes 15 minutes.
4. Cold Illuminant, Narrow Band Interference Optical inspection system, Optical inspection stability.
5. Data power-off protection function.
6. 30 COD standard Linear dispersions and 199 measured values (including COD values, absorption values and light transmitances with time labels year, month, day, hour, minute and second) can be stored.
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 measures the absorption value of water samples at 420nm (low range) and 610nm (medium and high range) wavelengths through a cold Illuminant and narrowband interference Optical inspection system, and calculates the COD concentration in combination with the COD standard Linear dispersion. The digestion instrument adopts PID automatic temperature control technology to digest at 165 ° C to ensure sufficient reaction.
Applications
Water quality testing, environment monitoring, industrial wastewater treatment, laboratory analysis
Steps
1. Prepare water sample and add Reagent.
2. Put the water sample into the digestion instrument, set the temperature to 165 ° C and the digestion time to 15 minutes for digestion.
3. After digestion is complete, move the sample to the measuring instrument.
4. Select the corresponding range, the instrument automatically measures and displays the COD value.
5. You can connect the computer to read or print data through the USB port.
Notice
• Instrument Ambient Temperature should be between 5 and 40 ℃.
• Operating Relative Humidity not exceeding 85%.
• Make sure the power supply is a rechargeable lithium battery before use, and check the power.
• Avoid operating in extreme environments to prevent affecting measurement accuracy.
• Regularly calibrate instruments to ensure data accuracy.
