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5B-6C (V8) is the eighth generation four-parameter water quality analyzer. The instrument is simple to use, high precision and full featured. It is a high-end equipment tailored by our company for pollution source emission enterprises. It can quickly and efficiently detect COD, ammonia nitrogen, total phosphorus and turbidity in enterprise wastewater. And this device is self-contained digestion function, the temperature can be freely adjusted from 45 °C to 190 °C, and the time is free to adjust from 0 to 120 minutes, which can meet the detection requirements in various scenarios.
Standard configuration:Protective cover,Cooling Rack,Cuvette Rack,Reagent Proportioner,Reaction Tube((Sealed Open),Printing Paper.

1.Can determination COD,Ammonia Nitrogen,Total phosphorus and Turbidity.
2.Set colorimetric system,Digestive system and timing system in one.
3.High-definition color LCD,humanized operation and simple to use
4.Intelligent data analysis,data analysis at a glance
5.Can change font size,data display more clear,and parameters more detailed.
6.Imported heat resistant protective cover,ensure the safety and reliability of the experiment
7.Light source life 100 thousand hours
8.Above digestion hole,has aviation insulation,layer protection, can effectively prevent scald.
9.Support two ways of colorimetric cuvette and colorimetric tube
10.The color LCD screen display and concentration direct reading

Instrument name | Multi-parameter Water Quality Analyzer | |||
Instrument model | 5B-6C(V8) | |||
Testing item | COD | Ammonia Nitrogen | Total phosphorus | Turbidity |
Testing scope | 5~5000mg/L(subsection) | 0.02~30mg/L(subsection) | 0.002~10mg/L(subsection) | 0.5~400NTU |
Testing accuracy | COD<50mg/L,≤±10% COD>50mg/L,≤± 5% | ≤±10% | ≤±5% | ≤±5% |
Min test line | 0.1mg/L | 0.01mg/L | 0.001mg/L | 0.1NTU |
Test time | 20min | 10~15min | 35~50min | 1min |
Batch process | 12pcs | 20pcs | 12pcs | Not limited to |
Repeatability | ≤±5% | ≤±5% | ≤±5% | ≤±5% |
Light source life | 100 thousand hours | |||
Optical stability | ≤0.001A/10min | |||
Anti chlorine interference | [Cl-]<1000mg/L No effect [Cl-]<4000mg/L(Optional) | |||
Digestion temperature | 165℃±0.5℃ | 120℃±0.5℃ | ||
Digestion time | 10min | 30min | ||
Colorimetric method | Tube/Cuvette | Tube/Cuvette | Tube/Cuvette | Cuvette |
Display screen | Color LCD(Resolution 320 X 240) | |||
Rated voltage | AC220V | |||
Timing switch | 3pcs | 3pcs | 3pcs | |
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