SKD-500
Automatic Kjeldahl Nitrogen Analyzer
(LCD Touch Screen)
Made of Corrosion-resistant ABS Engineering Plastics
1 Scope of Application and Overview
The automatic Kjeldahl nitrogen analyzer (protein analyzer) is a set of automatic intelligent measuring instruments designed according to the classic Kjeldahl method of nitrogen determination. It is widely used to measure the overall content of ammonia nitrogen and protein nitrogen in grain, oil, food, dairy products, beverages, feed, soil, chemical fertilizers, drugs, sediments and chemical products. It is an important physical and chemical analysis instrument for product quality inspection.
The automatic Kjeldahl nitrogen analyzer, which adopts a new long-life design, is intelligently controlled by advanced microcomputer and operated on LCD color touch screen. Chinese menu-based interface is used to complete man-machine dialogue and automatically complete a series of standard processes, such as adding acid, adding alkali, adding dilution, distillation and printing (optional).
2 Features
2.1 Accuracy
l Repeatability: RSD < 0.5%
l Recovery rate: > 99.5%
l Intermittent alkali addition ensures that the acid-base reaction is controllable to eliminate splashing during sample distillation.
l The constant pressure design prevents the solution from being sucked back into the collection bottle.
l Distillation power: 1500W, adjustable with good recovery for low-solubility samples.
2.2 Safety
l The distiller adopts double liquid level control (double safety) to prevent dry burning.
2.3 Convenience
l One-touch start of operation interface, LCD touch screen, easy to operate and enter the test program with one step.
l Large LCD screen display, independent circuit, water and gas, external reagent bucket.
l Alkali can be added manually at any time during the distillation to ensure the accuracy of sample data.
l Manual and auto mode can be switched freely, and the entire test process can be tracked and displayed in real time.
l Data storage and editing methods: Automatic preheating, cleaning and acid/alkali/dilution addition, and 999 programs can be stored.
2.4 Beautiful Appearance
l The instrument shell is made of ABS engineering plastic mold, which is resistant to strong acid and alkali, and heat insulated.
l High temperature, acid and alkali resistant materials are used to ensure the internal anti-corrosion, anti-leakage and sealing inside the instrument. The internal piping is guaranteed not to be replaced for three years.
3 Technical Parameters
? Measuring range: 0.08～240mgN;
? Measurable sample volume: Solid < 6g, liquid <16ml;
? Recovery rate: > 99.5%
? Repeatability: RSD ≤ 0.5%
? Distillation speed: 3-8min
? Distillation time: 1-99min
? Distillation power: 1,500W, adjustable
? Delay time: 0-1,800s (Easy to detect fertilizer)
? Distillation capacity: 15-30ml/min, adjustable
? Data storage: 100 distillation programs and more than 1,000 samples;
? Water supply: Water pressure > 0.15Mpa
? Cooling water consumption: > 1.5L/min (Water temperature ≤ 20°C)
? Shell: One-time molding by using ABS engineering plastics
? Automatic addition of acid, alkali, dilute solution, automatic replenishment of water, automatic distillation and data storage.
? Rated voltage: AC220 ± 10%
? Dimensions: 370*300*680mm
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