Shen ChangHongShen ChangHong

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laboratory analytical instruments in China.

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COD Analyzer

QCOD-3E

[Product Overview]

The instrument first digests the sample with sealed catalyst, and then measure them by colorimetric method. The instrument adopts advanced cold light source, narrow-band interference technology and microcomputer automatic data processing to directly display the COD (mg / L) value of the sample.

[Application Area]

Applicable to environmental monitoring, sewage treatment, universities, research institutes, etc.
Product Details
Custom Matching




Product Description



The instrument first digests the sample with sealed catalyst, and then measure them by colorimetric method. The instrument adopts advanced cold light source, narrow-band interference technology and microcomputer automatic data processing to directly display the COD (mg / L) value of the sample. The instrument is widely used in drinking water, groundwater, surface water, municipal sewage, industrial sewage, environmental monitoring, colleges and universities, scientific research institutions and other fields water measurements.



Technical Indicators



【host】
Measurement range: 

5~2000mg/L

(exceeding the dilution measurement) 

Indication error: ≤ ± 5 %
 Repeatability: ≤3% Anti-chlorine interference:  ≤1200mg/L
Temperature control system:  It can be set at room temperature ~180 °C, and the digestion temperature is 165 °C. Temperature control accuracy:  ±0.5 °C
Temperature control time: adjustable from 1 to 999min digestion time: 15min
Optical stability:  the instrument absorbance drifts less than 0.002A within 20min Batch volume:  20 water samples
Dimensions: Main unit: 240mm × 205mm × 170mm;Digestion instrument: 240mm × 207mm × 170mm
Weight:  Host 3kg digestion instrument 4kg Power consumption:  <500W
Normal use conditions:
Ambient temperature: 5 to 40 ° C Relative humidity:  ≤85%
Power supply:  AC (220 ± 22) V; (50 ± 0.5) Hz No significant vibration and electromagnetic interference, avoid direct sunlight.



Instrument Characteristics



1. The analyzer is separated from the digester, which does not affect the stability of the optical system.


2. The measuring instrument is a cold light source and narrow-band interference optical system with good optical stability.


3. Cuvette colorimetry, better linearity.


4. LCD large-screen Chinese display, easy and intuitive to operate.


5. The temperature of the digestion instrument is automatically controlled and timed by PID with high precision.


6. The operation is simple and time-saving, and the colorimetric digestion does not need to be changed.


7. The digestion temperature and time can be set steplessly for other purposes.


8. 10 standard curves and 500 measurements can be saved, and data will not lose even when power is cut off.



Packing List



Name Quantity Name Quantity
Host 1 1 digestion instrument
20 Digestion Tubes Two cuvettes
1 tube rack Cod reagent 1 set
1 digestion shield 1 operation manual
1 product certificate 1 warranty card