KDN-19K Automatic Nitrogen Analyzer, 460×410×730mm, Shanghai XianJian Instrument Co., Ltd. (CAT#: STEM-AIAE-3354-LGZ)

KDN-19K automatic nitrogen analyzer, based on the classic Kjeldahl method, is safe, fast, accurate, low consumption and user-friendly. A variety of operation modes, automatic mode: distillation titration is fully automatic, no need for personnel on duty, and the protein analysis results are automatically calculated; manual mode: adding alkali, adding acid, adding distilled water, and distillation can be controlled independently or at the same time; automatic titration, Manual titration can also be mixed. The difference is that you can arbitrarily set a user-approved color as the end point. In addition, on the basis of conventional color judgment sensing, the company's self-developed color filtering technology and adjustable jitter judgment function are used to make the end point judgment of the color method accurate, and the color difference and curve are directly displayed, allowing users to see The determination process of the instrument. In addition, a flexible open titration debugging system is built-in, and users can set the titration parameters very conveniently, fully demonstrating the system logic capability of 19K. The design and development of the 19K incorporates more than 30 years of manufacturing experience in fiber inspection and the majority of users' desire to improve the automatic nitrogen analyzer. It is suitable for users who require high accuracy of test results.

Measuring range: 0.1～240.0mg nitrogen
Sample weight: empirical value is 0.3~8.0g for solid, 2.0~30.0ml for liquid
Accuracy: 0.3% relative difference
Repeatability: Parallelism ≤0.2%
Recovery rate: ≥99.5%
Measurement speed: 3～8min/sample
Condensate consumption: 1.4L/min
Evaporation furnace overvoltage protection: support
Data storage: 1000 sets
Printer: yes
Operation mode: Distillation and titration both manual and automatic dual mode
Display mode: 7-inch LCD ultra-fine color screen
Control method: touch
Titration volume: 50µl~unlimited
Titration accuracy: 0.1μl/step
Titration speed: 60~120 drops/min adjustable
End color: can be set freely
Pre-titration: 0~99ml can be set
Calculation method: Automatic calculation of final result
Power: 1200W
Power supply: 220V±10%, 50～60HZ
Size: 460×410×730(mm)
Weight: 32kg

The international standard Kjeldahl nitrogen determination method was adopted: concentrated sulfuric acid digestion, alkaline environment steam distillation, boric acid absorption, and indicator titration endpoint color determination method.
Continuous titration allows unlimited titration without pumping reagents back and forth.
A user-approved color can be arbitrarily set as the end point.
The three-stage titration speed is automatically intervened to ensure both speed and accuracy.
Setting up a pre-titration for samples of known concentration can greatly increase the speed of the titration.
Automatic waste cleaning.
Manual and automatic integration, a variety of manual functions.
7-inch touch screen, user-friendly interface, easy to learn and easy to operate.
Special reagent barrel with low liquid level alarm function.
Anti-emergency event: the test can be continued after power failure, without affecting the test effect of the current sample; avoid the sample being scrapped due to unexpected events.
The anti-splash pipe material is made of strong acid and alkali resistant plastic, which has good sealing performance, stronger alkali resistance than glass, and long service life.
ABS shell, beautiful, anti-corrosion and durable.
The evaporation furnace has a pressure relief valve, which increases the safety of the instrument.

KDN-20K Automatic Nitrogen Analyzer, 0.1～240.0MG Nitrogen, SHANGHAI XINJIAN INSTRUMENT & EQUIPMENT CO. LTD. (CAT#-STEM-AIAE-3352-LGZ)
KDN-19H Automatic Nitrogen Analyzer, 440×440×735mm, Shanghai XianJian Instrument Co., Ltd. (CAT#-STEM-AIAE-3353-LGZ)
KDN-19C Automatic Nitrogen Analyzer, 412 × 376 × 740 mm, Shanghai XianJian Instrument Co., Ltd. (CAT#-STEM-AIAE-3355-LGZ)
KDN-19A Volatile Base Nitrogen Analyzer, Shanghai XianJian Instrument Co., Ltd. (CAT#-STEM-AIAE-3356-LGZ)
KDN-19Y Nitrogen Analyzer, 0.1mg～240.0mg Nitrogen, Shanghai XianJian Instrument Co., Ltd. (CAT#-STEM-AIAE-3357-LGZ)
ET-100 Alcohol Meter, 0 -96%vol, Shanghai XianJian Instrument Co., Ltd. (CAT#-STEM-AIAE-3358-LGZ)