Shen ChangHongShen ChangHong

To be a supplier of high quality
laboratory analytical instruments in China.

中文 / English

0086-0755-26450374 / ch@szchkj.com

Technical & Business Support: 8:30-18:00 every day

COD、NH3N Analyzer

CN-201

[Product Overview]

With color touch screen digestion instrument, the batch processing capacity is 16 water samples, and the casing is molded with ABS material, which has good corrosion resistance.

[Application Area]

Suitable for research institutes, large, medium and small water
Product Details
Custom Matching




Technical indicators



【host】
Measurement range:  COD NH3N
 5~2000mg/L  0.02 ~ 25mg / L
Indication error:  ≤ ± 5 % ≤±3% (F.S)
Repeatability:  ≤3%
 Anti-chlorine interference: ≤2000mg/L
Temperature control system:  can be set at room temperature ~180 °C, COD digestion temperature is 165 °C
Temperature control accuracy: ±0.5 °C
Temperature control time: adjustable from 1 to 9999min
digestion time:  COD is 15min
Optical system: 610nm (COD), 420nm (COD low range, ammonia nitrogen)
Optical stability:  the instrument absorbance value drifts less than 0.002A within 20min
Batch volume:  16 water samples
Dimensions:  Main unit: 240mm × 205mm × 170mm;Digestion instrument (DIS-16B type) 355mm × 260mm × 135mm
Weight: Main unit 3kg digestion device 5.5kg
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 analyzer is a cold light source, narrow-band interference optical system, with good optical stability.

3. The digester adopts a 3.5-inch color touch screen with a resolution of 320x240, both Chinese and English display. Simple and time-saving operation. The digestion colorimetry does not need to be changed.

4. With the function of multi-point error free calibration, zero error measurement of set point can be realized, and the error caused by nonlinearity of temperature sensor in common digesters in the market can be completely eliminated.

5. The digester has the function of timing reminder, automatic shutdown after digestion. And the instrument has secondary protection function. When the temperature of digester exceeds 200 ℃, it will cut off the power supply by itself to ensure the safety of digestion process

6. 20 standard curves and 199 measurements of COD and ammonia nitrogen can be saved and data will not lose even when power is cut off.

7. Large screen LCD Chinese display, convenient and intuitive operation.

8. The main engine shell is made of molded ABS material with good corrosion resistance.



Packing List



Name Quantity Name Quantity
Host 1 20 digestion colorimetric tubes
1 digestion instrument 1 tube rack
Cod reagent 1 set Ammonia nitrogen reagent 1 set
1 digestion shield 1 operation manual
1 product certificate 1 warranty card