
QCOD-3M COD rapid analyzer
-->Design according to the new national standard COD determination method;
-->Easy to operate, intuitive, with good accuracy and stability;
-->Equipped with printing and USB data upload;
-->Adopting a large screen color touch screen with Chinese and English display;
-->Equipped with one click recovery function;
Product Overview
The QCOD-3M COD detector uses sealed catalytic digestion and then performs colorimetric measurement.
Advanced cold light source, narrowband interference technology, and microcomputer automatic data processing directly display and print the COD (mg/L) value of the sample.
Widely applicable to environmental monitoring, sewage treatment, colleges, research institutions and other departments

Technical Specifications
1】 Measurement range: 5-2000mg/L (beyond dilution determination)
2】 Indication error: ≤± 5% (F.S)
3】 Repeatability: ≤± 3%
4】 Anti chlorine interference: ≤ 2000mg/L
5】 Temperature control system: Room temperature~200 ℃, automatic constant temperature control
6】 Temperature control accuracy: ± 0.5 ℃
7】 Temperature control time: adjustable from 1 to 9999 minutes
8】 Dissolving time: 15 minutes
9】 Optical stability: The instrument's absorbance value drifts less than 0.002A within 20 minutes
10】 Batch processing capacity: 16 water samples
11】 Dimensions: COD analyzer 400mm × 310mm × 158mm; Dissolver 355mm × 260mm × 135mm (DIS-16B type, without protective cover)
12】 Weight: 5kg mainframe, 5.5kg digestion apparatus
13】 Power consumption:<500W
14】 Normal usage conditions:
⑴ Environmental temperature: 5-40 ℃
⑵ Relative humidity: ≤ 85%
⑶ Power supply: AC (220 ± 22) V; (50 ± 0.5) Hz
⑷ No significant vibration or electromagnetic interference, avoid direct sunlight.

Product Features
1】 Designed according to the new "Environmental Protection Industry Standard HJ/T399-2007 of the People's Republic of China", different wavelengths are used for high and low range measurements, resulting in higher accuracy for low range measurements.
2】 By using imported high-performance and long-life light sources, coupled with a highly stable optical system, the instrument achieves higher repeatability.
3】 The digestion instrument has PID automatic temperature control and timing, with high accuracy.
4】 Simple and time-saving operation. Dissolving colorimetric does not require changing the tube.
5】 The instrument and digestion apparatus are operated using a large screen color touch screen, with a user-friendly interface and display in both Chinese and English.
6】 The digestion temperature and time can be infinitely set for other purposes.
7】 It can store 300 curves and 1000 records without losing them when powered off.
9】 The instrument has a one click recovery function.
10】 Printing function: It can print test records immediately or query records for printing.
11】 USB interface, can be connected to a computer.


[Company Profile]

Shenzhen Changhong Technology Co., Ltd. (referred to as "Shenzhen Changhong") is a high-tech enterprise founded in 2002. For seventeen years, we have been committed to the research and development, production, and sales of over a hundred water quality monitoring instruments, including COD analyzers, ammonia nitrogen analyzers, total phosphorus analyzers, total nitrogen analyzers, as well as various heavy metals and inorganic compounds. Our product technology involves computer, microcontroller software and hardware, optics, chemical analysis, and other technical fields.
The products currently produced by the company mainly include COD analyzer, ammonia nitrogen analyzer, total phosphorus analyzer, total nitrogen analyzer, turbidity meter, residual chlorine analyzer, copper, iron, nickel, zinc, hexavalent chromium, nitrite, cyanide, sulfide, iodide, volatile phenol, hydrazine, aniline and other detection instruments for hundreds of substances in water. At the same time, the company also produces instruments for measuring physical parameters in water such as pH, conductivity, dissolved oxygen, turbidity, chromaticity, and total hardness.

