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Automatic Kjeldahl Protein Analyzer ZDDN-II

Measure range: 0.1mgN-200mgN (nitrogen content 0.1%-99%)
Recovery rate: ≥99% (relative error,include digestion process)
Repetition rate: relative standard deviation<±1%

  • AC220V,50Hz

  • 1

  • 1 year

  • China

Product Description

ZDDN-II with logo

1. Adopt microcomputer controlling process; include manual mode and automatic mode. Can be set and switched according to user's need.

2. Large array LCD display, touch key, easy to operate.

3. Automatically control distill, add water, control water level are cut off water supply.

4. Various security protections: digestive system security device, steam generator water shortage alarm, water level detection fault alarm.

5. Stored operation procedure quantity: 250

6. Instrument shell adopts specially made plastic spray steel. Working area adopts ABS anticorrosive board, Avoid chemical reagent corrosion and mechanical surface damage, acid proof and alkali proof.

7. Once detected fault, controlling system will power off automatically.

Attention: This instrument can test content of nitrogen, and then content of Protein can be calculated by the content of nitrogen.




Measure range

0.1mgN-200mgN (nitrogen content 0.1%-99%)

Working mode

Automatic and manual (without titration)

Recovery rate

≥99% (relative error,include digestion process)

Repetition rate

relative standard deviation<±1%

Working hours

Distillation time: 5-15 minutes,the user can set automatically according to different samples.

Storing data

250 datum

Cooling water consumption

distillation fraction 3L /min (water temperature is less than 20 degrees)



Distillation fraction power supply


Measure variety

foodstuff,feedstuff,foods,dairy products, drink, soil, water, medicine, precipitate and chemical.