Fully automatic Kjeldahl nitrogen analyzer

Scope of application:

1. Widely used in food processing, feed production, tobacco animal husbandry, soil and fertilizer, environmental monitoring, medicine, agriculture, scientific research, teaching, quality supervision, inspection and quarantine, etc. Nitrogen content or protein content determination cation exchange capacity determination.

2. Detection of ultra-trace nitrogen content, can accurately test to 10ppm.

Product features:

1. Adopt national standard Kjeldahl nitrogen determination method: concentrated sulfuric acid environment digestion sample, alkaline environment steam distillation, boric acid absorption, indicator titration endpoint color judgment method. Participated in the drafting of the national standard GB/T22923-2008 and the official JJF109-2012 "Calibration Specifications for Nitrogen Determiners";

2.☆Fully automatic reagent addition, distillation, titration, digestion tube waste discharge, titration cylinder waste discharge, calibration, liquid level monitoring, calculation, data storage, test report generation and upload, the entire experimental process is fully automated, simple and efficient;

3. Fully automatic fault monitoring: safety door, digestion tube not in place alarm; the distillation generator has multiple protections such as pressure sensor, steam overpressure protection, temperature sensor, temperature protection switch, water level float and potential dual detection; distillation distillate temperature and volume monitoring to avoid temperature Too high or distillation volume fluctuations affect the test results; real-time monitoring of cooling water flow, low water pressure alarm, automatic termination of operation when water is cut off; condensate outflow temperature monitoring to ensure complete condensation of samples and accurate and reliable experimental results;

4.☆Can be matched with a 35-bit automatic sampler to achieve true unattended operation, effectively reduce personnel occupancy rate and reduce experimental costs;

5. Brand-new multi-core ARM operating system, optional Chinese and English operation interface, 10-inch LED high-definition color LCD touch screen, real-time monitoring and display of experimental process;

6.☆Four-level authority classification function, from program administrator-main administrator-auxiliary administrator-operator to use different permissions, The built-in time lock and data lock comply with the "GLP and GMP" regulations;

7.☆The upper computer uses Windows operating software, which has functions such as test data, recovery rate calculation and statistics, and automatic generation of test reports, which can facilitate users to analyze and process data through PC; the data processing software package has data tracking, review, and output functions, and has five-level management functions of operation, review, approval, management, and maintenance. The test information is reliable and traceable;

8.☆Data can be output using a U disk through the USB2.0 interface; the instrument has a built-in WIFI module, which can automatically identify the network and can upload detailed test information to the computer synchronously through wireless communication. PC end processing;

9. Double distillation mode, steam flow rate 0~100% adjustable;

10. External titration cup, the experimental process is visible in real time, the titration system lighting configuration is combined with mature color endpoint judgment software to minimize the influence of external light sources;

11. High-precision titration system, professional integrated precision plunger, to ensure test accuracy and reliability;

12.☆ The titration system adopts dynamic titration technology, which can realize distillation and titration and automatic judgment and switching of titration speed by the titration system, so as to truly achieve the simultaneous completion of distillation, titration and calculation processes, reducing the experimental time by 40%;

13. The titration color can be automatically and manually calibrated. The titration endpoint judgment adopts a high-precision 16-bit three-primary color digital signal color sensor to collect color signals;

14.☆ The instrument can store 1 million sets of data internally, and the cloud can store unlimited data. The test results can be selected in 12 ways including Word, Excel, etc.;

15. Strong acid and alkali corrosion-resistant diaphragm reagent pump, strong acid and alkali corrosion-resistant, super particle clogging resistance structure, stable liquid addition. Negative pressure suction is non-hazardous;

16. The splash-proof bottle is made of polymer material, which is resistant to high temperature and strong alkali, and at the same time ensures that ammonia does not leak and the recovery rate is not low;

17. The reagent barrel liquid level monitoring ensures that there is no liquid shortage during the experiment.

18. The instrument has a self-test function and one-button reset.

19. Two working modes are standard. Nitrate nitrogen and high nitrogen automatic test modules can be added according to needs.

20.☆304 stainless steel distillation reaction chamber, Teflon-treated visual safety door.

21. The distillation system specially designed in accordance with the law of ammonia escape ensures a high and reliable test recovery rate

22. The instrument has a built-in operation assistant and the instrument is more intelligent.

Technical parameters:

1. Measurement range: 0.1mg～240mgN (conventional nitrogen)

2. Measurement speed: ammonium nitrogen: 3-7min/sample

3.☆Recovery rate: ≥99.8%

4.☆Repeatability error: ≤0.2%

5.Linear range: RSD≤1% for samples in the digestive tube within the range of 1-3 times the nitrogen content

6.Distillation flow rate: 0～100% adjustable

7.☆Titration accuracy: 0.1μL/step

8.Measurement sample weight solid: ≤5g liquid ≤25mL

9.☆Data storage capacity: 1 million (inside the instrument)

10.☆500 groups of user-defined schemes

11.Cooling water consumption: 0.5L/min (when the cooling water temperature is 15℃), 1.5/min (when the cooling water temperature is 25℃); the cooling water temperature must be kept below 35℃ for normal use of the instrument.

Product's Website：http://en.huoerd.com/ksddy/1645.html