Fully Automatic Kjeldahl Nitrogen Analyzer JK9870, 0.1-200 mg N (CAT#: STEM-AL2-4124-ZJF)

The JK9870 fully automatic Kjeldahl nitrogen analyzer is an analytical instrument for determining nitrogen in digested samples. It is intended for Kjeldahl-based nitrogen analysis in laboratory testing workflows. The system manages reagent handling and steam distillation as part of the analytical sequence. Sample ammonia is separated during distillation and transferred to the receiving stage for measurement or titration. Integrated control functions coordinate the analytical steps and reduce manual intervention. The fluid path is configured for repeated exposure to acidic and alkaline reagents used in Kjeldahl analysis. Protection functions monitor operating conditions and help prevent unsafe or incomplete analytical cycles. The instrument is suited to repetitive nitrogen testing where standardized operation and data consistency are required.

Control Display: 7-inch color touch screen
Sample Capacity: Solid <=6 g
Liquid <=20 mL
Dimensions: 500 x 460 x 710 mm
Analysis Range: 0.1-200 mg N
Power: 2000 W
Repeatability: <=0.5%
Distillation Time: 0-600 min
Recovery:>=99.5%
Safety Door Thickness: 5 mm

One-touch fully automatic reagent addition, distillation, titration, and data storage
Automatic sample blank correction
Full-process titration curve monitoring
Dual analytical modes for amino and nitro sample types
Modular internal structure with color-coded tubing
Titration-volume verification
Additional alkali dosing during operation
Multiple electrical, tube-presence, water-level, over-temperature, and reaction-safety protections