HZ2326 Fully Automatic Kjeldahl Nitrogen Analyzer

I. Overview

Automatic distillation system of the nitrogen-containing samples was performed using the international universal Kelnitrogen determination method.Ask the experimenter to easily test the sample within minutes.The required reagents were automatically quantified and added, the whole process was unattended, and various states were then detected intelligently.The automatic distillation, automatic condensation and automatic lavage system further improves the measurement accuracy.Realize automatic discharge and cleaning function of digestive tube, easily complete automatic waste discharge, automatic cleaning work, newly designed steam generation system can control steam size and conduct real-time detection of receiving liquid temperature; high corruption resistance pump and linear motor microcontrol drip system ensure the accuracy of experimental results.

Fully intelligent software design, friendly interface, rich display information, so that users can easily master the use of instruments.It is widely used in nitrogen or protein determination in food processing, feed production, tobacco, animal husbandry, fertilizer, soil, environmental monitoring, medicine, agriculture, scientific research, teaching, and quality supervision.

Compliance with the standard: (See only individual typical criteria below)

1.GB 50095-2010 Determination of the protein in food products

2.HJ 717-2014 Determination of total nitrogen in soil mass

3.GBT 14489.2-2008 Determination of crude protein of plant oil

4.NYT 295-1995 Determination of cation exchange quantities and exchange salt groups in neutral soil

5.LYT 1243-1999 Determination of the cation exchange amount in the forest soil

II. Function Features:

1. automatic alkali plus acid, automatic distillation, automatic dilution, full automatic tration, automatic waste, automatic cleaning, automatic correction, automatic digestive emptying, automatic fault detection, automatic solution level monitoring, automatic overtemperature monitoring, automatic calculation results; make the whole experimental process simple and efficient instrument with safety door, test tube, condensate water pressure, reagent level, steam generator and other sensors, with automatic real-time detection and other audio and light alarm warning functions, all information under control, to ensure the safety of.

2.'s new arm control system, fast, stable and reliable, large LCD full-color touch screen, built-in micro printer, powerful function, convenient to use, and control of the whole experimental process in real time

3. humanized classifies sample detection and embedded the conventional experimental detection methods and parameters. The experimental process can be directly

4. switches manually and automatically in the double mode at will. The whole test process shows in real time that it can determine whether the ammonia gas is completely distilled and judge the correctness of the data

5. uses stable and reliable red, green and blue three base color judgment, and displays real-time three curves, standard acid titration, CEC content (soil cation exchange amount), protein (nitrogen) content.Help users to monitor the distillation, calculation and titration process in real time, replace the traditional electrode potential method and single wavelength ratio color method, and avoid the cumbersome process of frequent electrode replacement and correction

6. Real-time display of titration images, online monitoring of the entire experimental process, real-time adjustment of experimental methods, and improvement of test accuracy and efficiency

7. gap type alkali is added to ensure that the acid-base reaction is in a controlled state, and avoid the violent acid-base reaction produces heat and make ammonia escape

8. The internal pipeline of the 8. instrument adopts the self-developed anti-corrosion pipeline to ensure the long-term and stable use

9. reagents were measured by liquid pump at ml

10. Automatic detection of 10. condensate water flow and water pressure, alkali, boronic acid, dilutions and distilled water deficiency; with protection function of condensate broken current samples

11. is a new condensate device, which saves 50%, monitors the temperature of condensate outflow in real time to ensure the complete condensation of samples, ensure the accurate experimental results and reduces the use cost

12. has a dual distillation mode and can choose constant continuous distillation or time-lapse distillation to meet the needs of different experiments

13. can realize titration while distillation, neutralize the steamed ammonia in time, can avoid ammonia escape and at the same time reduce the detection time

14. has the function of variable speed titration, meeting different experimental requirements, and alleviating the intensity of acid-base reaction

15. can set any distillation time, and the instrument will alarm after distillation

16. stills use double liquid level control (double insurance) to prevent dry burning of distilled cups

17. distilled liquid temperature real-time monitor automatically stops the operation of the instrument when the slip-out liquid temperature is abnormal to ensure the accuracy of the experimental results

18. true uninterrupted distillation: constant steam, hydration time uninterrupted steam.Ensure the smooth steam out of the ammonia gas

19. steam flow is adjustable, more convenient and flexible, and ensures recovery of low concentration samples

20. external titration cup design is not affected by external light, and the operator controls the experiment in real time

21. digestive tube has a rapid emptying function, avoids the experimenter from contact with the distilled thermal reagent, and protects the safety of the experimenter. The exclusive designed filter system can effectively prevent the exhaust tube blockage

22. high-precision liquid pump and titration system ensure the accuracy of experimental results; replace the original long-effect

23. has permission rating for data traceability and complies with GMP and 21 CFR Part 11"

24. emergency stop operation function meets the emergency needs

The unique lavage function of 25. can absorb all the residual ammonia in the pipeline to ensure the accuracy of the experimental results

III.Parameter metrics

Recovery rate:> 99.5%

Base alkali segmentation: 1-10 and 0-15s intervals

Condensate water consumption: 1.5L/min

Distillation time: 3-9 min / sample

Distillation capacity: 15~30ml/ min adjustable

Disdistillation power is adjustable at 750-1500W,

Distillation delay: 0-1800s(for easy detection of nitric nitrogen)

Pump titration accuracy: RSD<0.002ul>

Minimum titration volume: 0.9ul/ step

Standard acid titration volume: no limit

Power supply: AC220V± 10%, frequency of 50-60HZ