SKD-5000 automatic Kjeldahl nitrogen analyzer soil cation exchange quantity detector Introduction
Fully automatic Kjeldahl nitrogen cation exchange capacity detector uses a new long-life design, superior microcomputer intelligent control, LCD color touch screen operation, Chinese menu interface, ** machine dialogue operation, automatic Kjeldahl nitrogen cation The exchange quantity detector automatically completes a series of standardization processes such as acid addition, alkali addition, dilution, distillation, titration, cleaning, storage, printing, etc. The titration is judged by the international standard color method (color sensor), replacing the traditional complex electrode potential method. And single-wavelength photoelectric colorimetric, the instrument is easy to operate, accurate data, stable performance, a number of independent intellectual property rights, some technologies and structures reach a certain level at home and abroad. Features
Real-time display of red, green and blue primary colors, titration standard acid consumption, CEC content, protein/nitrogen content
Tips for whether the ammonia is completely distilled to avoid the flow of erroneous data.
The standard acid titer is from 0 ml to 99 ml, which is not limited by the volume of the burette.
Using mathematical theory, 10 times standard acid replacement, * consumes 120ml of new standard acid, there will be no cross-contamination.
Instrument housing: ABS engineering plastics are used to avoid corrosion by sulfuric acid and to ensure instrument insulation.
With condensate shut-off sample protection
Distillation and titration are carried out simultaneously.
The titration cell is open and unaffected by outside light.
Automatic detection of cooling water flow and water pressure, alkali, boric acid, diluent, and distilled water shortage.
It has real-time detection and control of the temperature of the distillation cup.
Have real-time detection and prompt function for closing the protective door;
Automatically clean the titration cell and tubing.
Manual and automatic dual mode switching at will, the whole test process is tracked in real time.
The distiller uses a two-level control and uses a mathematical model to find that the distillation cup is in a dry state. Eliminate the dryness of the distillation cup.
Distillable power is adjustable: to ensure good recovery of low concentration samples.
Distillation mode double distillation mode:
Automatic acid addition, automatic addition of alkali, addition of diluent, distillation, titration, storage, printing out calculation results.
Traceable data and test conditions
Optional: Automatic input of balance data and wireless transmission of test data to the computer.
Technical Parameters
1. Measurement range: 0.1-210 mg nitrogen (0.07 cmol/KG-14 mol/KG)
2. Distillation time: 3-9 minutes / sample
3. Distillation capacity: adjustable from 15~30ml/min
4. Pump titration accuracy: RSD <0.002ul / step
5.* Small titration volume: 0.9ul/step
6. Reproducibility: RSD <0.5% (10-150mgN), RSD <1.0% (3-10mgN)
RSD <1.5% (1-3mgN) (as an acceptance indicator)
7. Linear range: The sample in the digestive tract is within the range of 1-3 times nitrogen content, RSD <1.5% (nitrogen content 3-150mgN, as acceptance index)
8. Recovery rate: >99.5%. (As acceptance index)
9. Reagent pump volume: 0-150ml, 1ml / grade
10. Delay time: 0-1800s (easy to detect nitrate nitrogen)
11. Distillation power is 750-1500W, adjustable
12. Power supply: AC220V±10%, frequency 50-60HZ
13. Digestive tract size: 300ml, 650ml
Introduction
Fully automatic Kjeldahl nitrogen cation exchange capacity detector uses a new long-life design, superior microcomputer intelligent control, LCD color touch screen operation, Chinese menu interface, ** machine dialogue operation, automatic Kjeldahl nitrogen cation The exchange quantity detector automatically completes a series of standardization processes such as acid addition, alkali addition, dilution, distillation, titration, cleaning, storage, printing, etc. The titration is judged by the international standard color method (color sensor), replacing the traditional complex electrode potential method. And single-wavelength photoelectric colorimetric, the instrument is easy to operate, accurate data, stable performance, a number of independent intellectual property rights, some technologies and structures reach a certain level at home and abroad.
