Fully Automatic Kjeldahl Nitrogen Analyzer

The fully automatic Kjeldahl nitrogen determinator employs the internationally recognized Kjeldahl method for automated distillation of nitrogen-containing samples. It enables laboratory personnel to effortlessly complete sample analysis within minutes. The instrument automatically dispenses required reagents in precise quantities, operates unattended throughout the entire process, and features intelligent monitoring of various operational states.

Features include automatic distillation, condensation, titration, result calculation, and printing. Its fully intelligent software design offers a user-friendly interface with comprehensive display information, enabling effortless operation.

This instrument complies with standards for: Food protein determination、Soil total nitrogen analysis (Kjeldahl method)、Crude protein measurement in grains and oils。

The fully automatic Kjeldahl nitrogen analyzer is now widely used for nitrogen or protein determination in food processing, feed production, tobacco, animal husbandry, soil fertility, environmental monitoring, pharmaceuticals, agriculture, scientific research, education, and quality supervision. It possesses superior technical advantages among similar products domestically and internationally.

Digestion Furnaces are suitable for sample digestion prior to chemical analysis in industries such as food, pharmaceuticals, agriculture, forestry, environmental protection, and chemical engineering, as well as in universities and research institutions for materials including soil, feed, plant matter, seeds, and ores. They are essential pre-treatment equipment for Kjeldahl nitrogen analyzers.

• After startup, it can fully automate the entire sample testing process, including fully automatic alkali and acid addition, fully automatic distillation, fully automatic dilution solution addition, fully automatic titration, fully automatic result calculation, and fully automatic fault detection.

• Features a new ARM-based control system for rapid, stable, and reliable operation. Equipped with a built-in 7-inch or larger full-color touchscreen, it does not run Windows or Android systems, reducing the risk of system crashes. Includes an integrated micro-printer, offering powerful functionality and user-friendly operation for real-time control throughout the entire experimental process.

• Utilizes stable and reliable RGB color-based judgment with real-time display of standard acid titration volume. Enables users to monitor distillation, calculation, and titration processes in real time.

• Innovative thermal insulation and corrosion-resistant technology: Internal piping utilizes proprietary corrosion-resistant tubing with no exposed insulation material. This design minimizes housing temperature rise during operation, ensuring safety and aesthetic appeal. The upper surface undergoes specialized treatment for resistance to strong acids and alkalis, delivering long-lasting durability without corrosion.

• Advanced embedded software temperature control technology: Proprietary embedded software ensures precise, stable, and uniform temperature regulation. Integrated heating element monitoring technology enables real-time detection of abnormalities, triggering automatic system alerts for enhanced intelligence.

• All reagents are metered via liquid pumps with milliliter precision.

• Capable of digesting 10 samples simultaneously, significantly boosting work efficiency.

• Distillation time can be freely set, with the instrument alerting upon completion.

• Features dual-level liquid control (dual safety) to prevent dry-burning of the distillation cup.

• True uninterrupted distillation: Steam remains constant, with no interruption during water replenishment, ensuring smooth ammonia vaporization.

• Utilizes three-dimensional surround heating for uniform sample heating, minimizing heat loss.

• Simple operation with continuously adjustable furnace temperature, stable controllable temperature, and wide application range.

• The entire unit features multiple protections including overvoltage, overcurrent, and overheating, with intelligent monitoring of heating element health.

• Utilizes a new-generation intelligent temperature controller with precision PID control technology, delivering high temperature accuracy and rapid heating—reaching 400°C from room temperature in just 25 minutes.

• Minimal temperature variation between furnace chambers ensures consistent sample digestion results and high thermal conductivity efficiency.

• The instrument work surface and test tube rack feature corrosion-resistant design with enhanced anti-corrosion capability.

• Heating blocks undergo special oxidation-resistant treatment to extend service life.

• Optional Feature: Upgrade to a high-end true-color LCD touchscreen for interactive operation, enabling timed tasks with automatic shutdown upon completion.

• Optional Feature: Supports built-in 30-step programmed temperature ramping to accommodate diverse experimental requirements.