Water quality COD measuring instrument

The water quality COD (Chemical Oxygen Demand) analyzer oxidizes organic substances in water samples using chemical oxidants under specific conditions, and calculates the COD value based on the consumption of oxidants or the generation of oxidation products. It is used to detect the level of organic pollution in water bodies and is suitable for applications such as wastewater treatment and environmental monitoring.
Selection
When selecting, consider matching the measurement range with the water sample concentration, adopt national standard methods to ensure data validity, pay attention to the control precision of digestion temperature and time, choose models resistant to chloride ion interference to adapt to different water bodies, and balance maintenance costs with operational convenience.

Terms

Standards

Instruments

Colorimetric integrated tube design, no need to transfer liquid, support more than 10 measurements to take the average value, measurement error ≤ +/- 5%, Repeatability ≤ +/- 5%, built-in two COD detection methods, can expand a variety of water quality paraMeter detection.

$ 2526.00

The separate design of digestion and determination does not affect the accuracy, COD digestion is completed in 15 minutes, 30 standard Linear dispersion and 199 sets of data can be saved, 4-16 water sample batches are supported, and IP65 waterproof and dustproof design is adopted.

$ 1366.00

With a concentration of 150mg/L and a capacity of 250mL, it is suitable for a variety of water quality analysis instruments, providing accurate chemical oxygen demand calibrated to ensure Reliability of test results.

$ 109.00

With a concentration of 1500mg/L and a specification of 250mL, it is suitable for chemical oxygen demand detection and calibrating of various water quality analytical instruments to ensure measurement accuracy and experimental Reliability.

$ 109.00

Measurement range 0~ 1500mg/L, 10mL Colorimetric tube Encasement, 25 boxes convenient for batch use, suitable for water quality chemical oxygen demand detection and analysis.

$ 169.00

With 12 water quality paraMeter detection capabilities, resolution of 0.001mg/L, Repeatability 2%, micro-processing technology and long-life Illuminant, support custom Linear dispersion calibrating and data smoothing.

$ 1058.00

Optical inspection system using imported cold Illuminant and narrow band interference, Optical inspection stability is less than 0.002A/20min, digestion temperature accuracy +/- 0.5 ℃, support COD and ammonia nitrogen dual paraMeter measurement, can save multiple standard Linear dispersion and data.

$ 1548.00

Adopt cold Illuminant narrow-band interference Optical inspection system, Optical inspection stability is less than 0.002A/20min, support room temperature to 180 ℃ stepless temperature control, anti-chlorine interference up to 2000mg/L, batch processing of 20 water samples, easy to operate without changing pipes.

$ 1564.00

Digestion instrument and measuring instrument separation design to ensure measurement accuracy, using PID automatic temperature control technology, temperature range to 180 ℃, temperature control accuracy +/- 0.5 ℃, support 4 water sample batch processing, Optical inspection stability is better than 0.002A/20min.

$ 1753.00

Using composite ElectRode design, equipped with special reference filling solution and calibrating solution, Measurement accuracy is high, BNC interface compatibility is strong, suitable for a variety of water quality analysis scenarios.

$ 309.00

Measurement range 0~ 500 ppm, accuracy +/- 3 ppm, support for CAL CheckTM Adjustment, suitable for a variety of water quality testing scenarios.

$ 215.00

Measurement range 0~ 150mg/L, 10mL Colorimetric Encasement, 25/box, suitable for rapid detection of chemical oxygen demand in water quality.

$ 169.00

With standard COD, total phosphorus, total nitrogen working procedures, support custom temperature and time; using new temperature control algorithm, heating uniform and fast, heating up to 165 ℃ only 12 minutes, temperature control accuracy +/- 1 ℃; one-button operation, with automatic alarm and transparent protective cover.

$ 767.00

Adopt 165 ℃ thermostatic digestion and spectrophotometric detection technology, detection range 0~ 20000mg/L, support digestion Colorimetric integrated tube design, built-in rechargeable battery, can store 4000 sets of data and support a variety of transmission interfaces.

$ 2526.00

Using 420nm and 620nm dual wavelength LED Illuminant, supports high and low concentration COD detection, Measurement range 0-1500mg/L can be extended to 15000mg/L, built-in 2000 data storage and automatic printer.

$ 2073.00

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