QCOD-2M COD Analyzer
QCOD-2M COD Analyzer

QCOD-2M COD Analyzer




product details

QCOD-2M COD Analyzer

This product is the use of sealed catalytic digestion, and then colorimetric measurements. 

The instrument uses advanced , narrowband interference technology and microcomputer 

automatic processing of data , direct display of the sample COD (mg / L) and ammonia (mg / L) values. 

The instrument is widely used in environmental monitoring, wastewater treatment and universities, 

research institutes and other departments. 

Technical Parameter

Measurement Range : ( over dilution measurement ) COD: 5 ~ 2000mg / L
Indication error: COD: ≤ ± 5%
Repeatability: ≤ 3%
Resistance to chloride interference : ≤ 2000mg / L
Temperature control system: room temperature ~ 180 ℃ can be set, COD digestion temperature of 165 ℃.
Temperature accuracy: ± 0.5 ℃
Temperature Time : 1 ~ 999min adjustable
Digestion time : COD is 15min, total phosphorus was 30 min
Optical stability: Instrument absorbance values drift less than 0.002A within 20min Batch capacity: 16 water samples 


COD analyzer  340mm × 250mm × 130mm 

Digestion device (DIS-16 type)  216mm × 320mm × 146mm 

Weight: 6kg host , 4kg digestion device

Power consumption: <500W 

Normal conditions of use: 

⑴ Ambient temperature: 5 ~ 40 ℃ 

⑵ Relative humidity: ≤ 85% 

⑶ Power supply: AC (220 ± 22) V; (50 ± 0.5) Hz 

⑷ no significant vibration and electromagnetic interference, avoid direct sunlight.


●Analyzer separated with digestion device, without affecting the stability of the optical system. 

●Analyzer is cold light, narrowband interference optical system, good optical stability. 

●High temperature digestion PID automatic temperature control, high precision timing.

●Operation is simple and time-saving. digestion colorimetric no need to change tube. 

●Digestion temperature and time can be infinitely set to be used for other purposes. 

●Standard curves can be saved each 10 and 999 measured values, values is not lost when the power outage.

●LCD large-screen, easy and intuitive operation. 

●Has a factory recovery curve to restore accidentally deleted curve operation. 

●Has a print function: recording test print immediately or query records printed

●USB interface can be connected to a computer.

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