The Kjeldahl method is a classic method for determining nitrogen. At present, the Kjeldahl method is generally used for the determination of soil, food, animal husbandry, agricultural products, feed and other nitrogen-containing compounds.When this method is used to determine samples, sample digestion-distillation Separation- titration analysis three process need to be p-proceeded.
JK9870 automatic Kjeldahl nitrogen analyzer is an automatic nitrogen distillation-titration technology, color method to determine the end point "nitrogen element" (protein) analysis system developed based on the classic Kjeldahl nitrogen determination method.
Features:
The embedded operating system adopts a 7-inch color touch screen, and the menu is man-machine dialogue, which is easy to operate and easy to learn
Automatic shutdown function, the system automatically shuts down after 60 minutes of unmanned operation, which is energy saving and safe
Operation method, reagent preparation, precautions, maintenance are placed on the screen to facilitate user query and use
Use R, G, B three-color color sensor, wide color adaptation range, high precision, fast response speed
R, G, B three titration curves can observe the sample changes in the titration process, and provide help for the analysis process
Titration accuracy verification can ensure the accuracy of analysis data
The titration cup is installed conveniently for users to observe the titration process and clean the titration cup
The "plunger titration pump", composed of a linear motor made in Germany and an injection needle tube, has high control accuracy and good stability
The instrument has a built-in protein coefficient table for users to read, query and participate in system calculations for user convenience
10. 16M data storage capacity can store 100,000 pieces of sample data for review, 5.7CM automatic paper cutting thermal printer
99 groups of user-set program (recipe) management system
Multi-function interface can be connected to refrigeration system, reagent tank level sensor
Measurement of "nitro" samples through time-lapse analysis
Metal material (304 stainless steel) steam boiler: stable performance, reliable, strong pressure resistance
The steam system provides constant pressure steam flow, good stability and safety
Professional and excellent performance pumps and valves, and imported pipeline system fully guarantee the reliability and stability of the product
Technical parameters:
Model:jk9870 Analysis range: 0.1-210 mg N Precision (RSD): ≤0.5% Recovery rate (display error): 99.5% (±0.5%) Titration accuracy: 0.75μL/step Sample analysis time: 4-6min/ (cooling water temperature 18ºC) Titration solution concentration range: 0.01-5 mol/L Input method of titrant concentration: manual input Data storage capacity: 100,000 sets 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 adding mode: 0-999 seconds Automatic shutdown time: 60 minutes Working voltage: AC220V/50Hz Heating power: 2000W Dimensions: 500*460*710mm Net weight: 36Kg
Protection system:
• Leakage protection system guarantees the safety of operators • No reagents and no heating in digestive tube absent system to prevent reagents and steam from hurting people •The system does not work when safety door does not close the, 5mm thick transparent safety door to ensure personal safety • Thesystem automatically shuts down when steam system water shortage and alarms to prevent accidents • Automatic shutdown and alarm when steam boiler is over-temperature
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