Kjeldahl Nitrogen Analyzer

 

The ZDDN-II Automatic Kjeldahl Analyzer is designed for the precise determination of nitrogen and protein in food, animal feed, dairy products, beverages, soil, water, and chemical samples. The system offers automatic distillation, automatic water control, and user-friendly microprocessor control, ensuring reliable, accurate, and efficient laboratory analyses.

 

 

 

Features

1. Adopts a microcomputer control process; includes a manual mode and an automatic mode. Can be adjusted and switched according to user needs.
2. Large LCD screen, touch control, easy to use.
3. Automatically control the distillation, add water, control the water level and shut off the water supply.
4. Various safety protections: digestive system safety device, steam generator water shortage alarm, water level detection fault alarm.
5. Number of stored operating procedures: 250
6. The instrument housing is made of powder-coated steel with a specially designed plastic. The working area is equipped with an ABS anti-corrosion panel, preventing corrosion from chemical reagents and mechanical surface damage, and is resistant to acids and alkalis.
7. Once the fault is detected, the control system will automatically shut down.

Principle

The steps in the measurement principle of the autometer are presented as follows: Sampling-Assimilation-Distillation-Titling-Calculation

Attention

This instrument can test the nitrogen content, and then the protein content can be calculated from the nitrogen content.

Mesurer la variété

denrées alimentaires, aliments pour animaux, aliments, produits laitiers, boisson, sol, eau, médicament, précipité, produit chimique

Mode de fonctionnement

semi-automatique

Mesurer la quantité

Digestion simultanée de 4 à 20 tubes, distillation simple.

Plage de mesure

0,1~200 mgN (teneur en azote 0,1 % – 99 %)

Taux de récupération

≥99 % (erreur relative, incluant le processus de digestion)

Fréquence de répétition

écart type relatif < ± 1 %

temps de digestion

40 à 90 minutes (selon différents échantillons, le temps requis est également différent.)

temps de distillation

5 à 15 minutes (selon différents échantillons, le temps requis est également différent.)

Puissance

4 trous — 1000W, 8 trous — 1500W, 20 trous — 2000W Distillation : 1000W

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