Fully Automatic Kjeldahl Nitrogen Analyzer Color method protein Analysis GB/T 33862

Brand Name:Shandong Shengtai Instrument Co., Ltd.
Certification:GB/T 33862-2017
Model Number:ST115CS
Minimum Order Quantity:1
Delivery Time:7-15 work days
Payment Terms:T/T
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Location: Jinan Shandong China
Address: Times Headquarters Base, Tianqiao District, Jinan City
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ST-115CS Fully automatic Kjeldahl nitrogen analyzer

Name: Automatic Kjeldahl nitrogen analyzer

model: ST-115CS=ST115C+STZ-08C

ST-115CS Kjeldahl nitrogen determination method is a classic method for determining nitrogen. The Kjeldahl method is used to determine soil, food, animal husbandry, agricultural products, feed, and other nitrogen-containing compounds. When using this method to determine samples, three processes are required: sample digestion, distillation separation, and titration analysis

The ST-115CS fully automatic Kjeldahl nitrogen analyzer is a "nitrogen element" (protein) analysis system developed based on the classic Kjeldahl nitrogen analyzer method, using fully automatic distillation titration technology and color method to determine the endpoint. Its method and manufacturing comply with the manufacturing standards of "GB/T 33862-2017 Fully (Semi) Automatic Kjeldahl Nitrogen Analyzer" and relevant international standards

Product Features:

●The operating system adopts a 7-inch color touch screen, with easy human-machine dialogue operation and easy learning

●The three-level permission management, electronic records, electronic tags, and operation traceability query system meet the relevant certification requirements

●The system automatically shuts down after 60 minutes of unmanned operation, which is energy-saving, safe, and reassuring

● Choose R, G, B coaxial three color light sources and three color sensors, with a wide range of color adaptability and high accuracy

●Automatic adjustment of R, G, and B light intensity suitable for analyzing samples of different concentrations

●The three titration curves of R, G, and B can observe the changes in the sample during the titration process, providing assistance for analysis

●The titration cup is installed in an open manner, making it convenient for users to observe the titration process and clean the titration cup

●Imported linear motor and injection needle tube form a "plunger titration pump" with high control accuracy and stability

●The titration speed can be set arbitrarily from 0.05ml/second to 1.0m/s

●Distillation time can be freely set from 10 seconds to 9990S

●The instrument has a built-in protein coefficient query table for users to access, query, and participate in system calculations, making it convenient for users to use

●16M data storage capacity can store 1 million sample data for reference, 5.7CM automatic paper cutting thermal printer

●99 groups of users set up their own program (recipe) management system

● Measurement of "nitro" class samples through delay analysis

●The metal material (304 stainless steel) steam pot has stable, reliable, and pressure resistant performance

● Leakage protection system prevents leakage and electric shock to ensure the safety of operators

●The digestive system does not add reagents or heat to prevent injury from reagents or steam

●The safety door is not closed and the system does not work. The 5mm thick transparent safety door ensures personal safety

●Automatic shutdown and alarm of steam system water shortage system to prevent accidents from occurring

●Automatic shutdown and alarm of steam boiler overheating system

Technical Index:

Analysis range0.1-240 mg N
Precision (RSD)≤ 0.5%
Recovery rate99-101% (± 1%)
Titration accuracy0.2 μ L/step
Titration speed0.05-1.0ml/s can be set arbitrarily
Distillation time10-9990S, freely adjustable
Sample analysis time4-6min/(cooling water temp 18 ℃)
Concentration range of titrant0.01-5 mol/L
Titration cup volume300ml
Data storage capacity1 million sets of data
Printer5.7CM thermal automatic paper cutting printer
Delay analysisreaction time 0-2h
Delay alkali addition time0-999s
Automatic shutdown time60min
Working voltageAC220V/50HZ
Heating power2000W
Dimensions500 * 460 * 710mm
Net weight36Kg
Printer5.7CM thermal automatic paper cutting printer
Communication interfacerefrigeration cycle unit
Titration concentration input methodmanual input

Note: The appearance pictures, dimensions, volume, and weight of the instrument are for reference only. If there are any updates to the instrument, there may be slight changes without prior notice.

Packing List

NumberNameQuantityUnitNote
1Reagent bucket3Piece
2Waste liquid tank1Piece
3Reagent pipeline4Root
4Cooling water pipe2Root
5Power cord1Piece
6M19 open-end wrench1Piece
75.7cm printing paper8Roll
81L titrant reagent bottle1Piece

STZ-08C Digital precision digestion furnace:

Product features:

● The heating element (module) is made of aluminum alloy precision casting and processing, which is acid and alkali resistant and has a long service life

● The furnace hole temperature is continuously adjustable, with a fast heating rate and a wide range of applications

● The temperature difference between the pores is small, the sample digestion consistency is good, the thermal efficiency is high, and it is conducive to the digestion of the sample

● The instrument table and test tube rack are welded with brushed stainless steel plates, which have a certain anti-corrosion ability

● Adopting a new generation LCD temperature controller with functions such as timed shutdown and alarm, PID intelligent control technology, high temperature control accuracy, small temperature fluctuation amplitude, and easy to learn

● Optional 30 segment program heating function to meet users' various experimental needs


Parameter indicators:

Number of heating hole8
Volume250ml
Design temperatureRT--500℃
Temperature control methodLCD display, intelligent PID control
Temperature control accuracy± 1 ℃
Heating rate≈ 20℃/min
VoltageAC220V
Power2KW
Current9A
Heating elemenNickel chromium wire aluminum alloy heating plate

Note: The appearance pictures, dimensions, volume, and weight of the instrument are for reference only. If there are any updates to the instrument, there may be slight changes without prior notice.


Shandong Shengtai Instrument Co., Ltd. provides the following quality assurance for the instruments sold to you:

----The provided instrument materials are brand new, meet national quality standards, and have a manufacturer's certificate of conformity;

----The materials and main components provided meet the technical requirements specified in the technical documentation;

----The overall quality assurance period of the equipment is one year (excluding normal wear and tear of vulnerable parts).

----We are responsible for free maintenance of any instrument quality issues that occur during the warranty period. Due to equipment malfunction caused by the user's responsibility, we are responsible for repairing and charging reasonable fees.

----Lifetime discounted supply of parts for equipment, and lifetime maintenance and repair of the entire machine.

----After the expiration of the warranty period, if the user needs maintenance and technical services, we will only charge a cost fee.

China Fully Automatic Kjeldahl Nitrogen Analyzer Color method protein Analysis GB/T 33862 supplier

Fully Automatic Kjeldahl Nitrogen Analyzer Color method protein Analysis GB/T 33862

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