kjeldahl nitrogen analyser
kjeldahl nitrogen analyser

AK9870 Fully Automatic Kjeldahl Nitrogen Analyzer

Full automatic Kjeldahl method to analysis crude protein content in grain food feed soil meat etc
0.1-240 mg N
Analysis range
≤ 0.5%
Precision (RSD)
≥ 99.5% (± 0.5%)
Recovery rate
Product Details
Automatic kjeldahl nitrogen analyzer:
1.The method is a classical method for determining nitrogen. At present, Kjeldahl method is widely used to determine soil, food, animal husbandry, agricultural products, feed and other nitrogen compounds. 

2.When using this method to determine samples, three processes are required: sample digestion - distillation separation - titration analysis.

3.It is a "nitrogen element" (protein) analysis system developed based on the classic Kjeldahl nitrogen determination method. Its method and manufacture comply with the manufacturing standard of GB/T 33862-2017 Full (Semi) Automatic Kjeldahl Nitrogen Analyzer and relevant international standards.

Secure protection system
1.Leakage protection system to prevent leakage and electric shock to ensure the safety of operators

2.Digestive tube vacancy system does not add reagent or heat to prevent reagent and steam from injuring people

3.The system does not work when the safety door is not closed, and the 5mm thick transparent safety door ensures personal safety

4.Automatic shutdown and alarm of water shortage system of steam system to prevent accidents

5.Automatic shutdown and alarm of steam boiler over temperature system
The embedded operating system of JK9870 automatic Kjeldahl nitrogen determination instrument with independent intellectual property rights adopts a 7-inch color touch screen, and the menu is Chinese man-machine dialogue, which is easy to operate and learn.
Automatic shutdown function, the system automatically shuts down after 60 minutes of unmanned operation, saving energy, safety and confidence.
The operation method, reagent preparation, precautions, maintenance and maintenance are placed on the screen for users to query and use.
R, G and B color sensors are selected, with wide color adaptation range, high precision and fast reaction speed.
R. The three titration curves G and B can observe the sample change in the titration process and help the analysis process.
Titration accuracy verification can ensure the accuracy of analytical data.
The open installation of titration cup is convenient for users to observe the titration process and clean the titration cup.
The "plunger titration pump" is composed of linear motor made in Germany and injection needle tube, which has high control accuracy and good stability. 99 groups of user set program (formula) management system.
Built in protein coefficient query table for users to read, query and participate in system calculation. 16M data storage capacity can store 100000 sample data for reference, 5.7CM automatic paper cutting thermal printer.
JK9870 full-automatic Kjeldahl nitrogen determination instrument has multi-function interface to connect the refrigeration system and reagent tank level sensor.
"Nitro" type samples can be measured by time delay analysis. Metal (304 stainless steel) steam cooker: stable, reliable and strong compression resistance.
The steam system provides constant pressure steam flow with good stability and safety. Professional and excellent pumps, valves and imported pipeline systems fully guarantee the reliability and stability of products.
Model AK9870
Analysis range 0.1-240 mg N
Precision (RSD) ≤ 0.5%
Recovery rate (indication error) ≥ 99.5% (± 0.5%)
Titration accuracy 0.75 μ L/step
Sample analysis time 4-6 min/(cooling water temperature 18 ℃)
Concentration range of titrant 0.01-5 mol/L
Input mode of titrant concentration manual input
Data storage capacity 100000 groups of data
Printer 5.7CM thermal automatic paper cutting printer
Communication interface 232/network/cooling water/reagent level
Delay analysis reaction time 0-2 hours
Safe alkali dosing mode 0-999 seconds
Automatic shutdown time 60 minutes
Working voltage AC220V/50Hz
Heating power 2000W
Boundary dimension 500 * 460 * 710mm
Net weight 36Kg
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First tier manufacturer of precise equipment for  Laboratories
Aoda Instrument Equipment is the first tier manufacturer of precise equipment for  Laboratories, Scientific research institutions and colleges, Medical,Environmental protection agencies,Petrochemical industry etc.
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