Overview
CODMn analyzer (model: COD-M) is a special instrument for the measurement of permanganate index (CODMn) in water. The instrument adopts advanced Optical inspection system and stable electronic components, combined with years of experience in the production of water quality monitoring instruments, to ensure Measurement accuracy, Stability, easy and intuitive operation.
Features
1. Imported high performance, long life (100,000 hours), high luminance Illuminant, with narrow band filter system, Optical inspection Stability, strong anti-interference ability, high accuracy and good Stability.
2. Large-screen LCD Chinese display, Chinese menu operation, simple and intuitive.
3, measurement data can be stored for a long time, Linear dispersion in addition to factory calibration Linear dispersion, but also support users to calibrate.
4. The main machine case is made of ABS material after mold, which has good corrosion resistance.
5, using high performance, low power consumption 16-bit microcontroller system, excellent performance.
6. Based on more than a decade of experience in the production of water quality monitoring instruments, the quality is guaranteed.
Principle
The instrument is based on the determination principle of permanganate index (CODMn). The water sample is digested in a specific digestion environment (100 ℃ +/- 1.5 ℃) for 30 minutes to oxidize the reducing substances in the water sample. Then, the CODMn value of the water sample is calculated by measuring the change of Absorbance at a specific wavelength using an imported high-luminance Illuminant and a narrow-band filter system.
Applications
Water quality monitoring, environment monitoring, sewage treatment, drinking water testing, industrial wastewater analysis
Steps
1. Turn it on and warm up, and enter the Chinese operation menu.
2. Prepare the water sample to be tested and the required Reagent.
3. According to the measurement requirements, choose factory calibration Linear dispersion or user self-calibration.
4. Add the water sample and Reagent to the digestion tube and place it in the instrument Digester for digestion (100 ° C +/- 1.5 ° C, 30 minutes).
5, after the digestion is completed, digestion tube into the measurement cell photometry.
6. The instrument automatically calculates and displays the CODMn concentration value, and the data can be saved.
Notice
• The instrument should be used under the conditions of Ambient Temperature 5~ 40 ℃ and relative humidity ≤ 85%.
• Power Supply is AC (220 +/- 22) V; (50 +/- 0.5) Hz to ensure stable power supply.
The digestion temperature should be strictly controlled within the range of 100 ° C +/- 1.5 ° C.
• Make sure the Optical inspection system is stable before measurement (Optical inspection Stability < 0.002A/20min).
• For samples close to or below the minimum detection limit (0.20mg/L), results should be judged with caution.
• Regular maintenance and calibrating to ensure Measurement accuracy (Indication Error ≤ +/- 4%, Repeatability ≤ 3%).
• The instrument case is made of ABS material, and care should be taken to avoid contact with strong corrosion chemicals.
• Follow relevant laboratory safety regulations when operating.
