NK9870 Fully Automatic Kjeldahl Analyzer

The Kjeldahl method is a classic technique for determining nitrogen.

It is widely used for the measurement of nitrogen in soil, food, livestock, agricultural products, feed, and other nitrogen-containing compounds. The process for sample analysis using this method involves three main steps: sample digestion, distillation and separation, and titration analysis.

Our company is one of the creators of the national standard GB/T 33862-2017 for "Fully (Semi) Automated Kjeldahl Nitrogen Analyzer." Therefore, the Kjeldahl analyzer series products we develop and manufacture comply with both the GB standard and relevant international standards.

One-button automatic completion: Automatically completes reagent addition, temperature control, cooling water control, sample distillation and separation, titration analysis, data storage and display, waste liquid discharge, titration cup cleaning, and completion prompt. Control system: 7-inch color touchscreen with easy language switching between English and Chinese.

Three-level authority management: Supports electronic records, electronic labels, and an operation traceability query system that meets certiffcation requirements.

Dual analysis mode: Switches between automatic and manual modes as needed.

★ Automatic shutdown: Shuts down automatically after 60 minutes of inactivity, ensuring energy savings and safety.

★ Built-in protein factor lookup table: When the coefffcient = 1, the result is displayed as "nitrogen content," and when the coefffcient > 1, the result is converted to "protein content." TTe results are displayed, stored, and printed.

Titration system: Uses RGB coaxial light sources and sensors, offering wide color adaptability and high precision.

★ Patented RGB light intensity adjustment system: Automatically adapts to different sample concentrations.

Titration speed: Adjustable from 0.05ml/sec to 1.0ml/sec, with a minimum titration volume of 0.2µl per step.

High-precision titration system: Comprises a German ILS 10mL (optional 25mL) syringe and a linear motor with 0.6mm lead screw.

Visible titration cup: Allows easy observation of the titration process and facilitates cleaning.

Distillation time: Adjustable from 10 to 9990 seconds.. Data storage: (16M) Can store up to 1 million data sets for user reference.

5.7CM thermal printer: Features automatic paper cutting.

★ Anti-splash bottle: Made from high molecular PP plastic, suitable for high-temperature, strong alkaline, and strong acidic environments.

★ Steam system: Made from 304 stainless steel, with patented "separated capacitive liquid level sensor control" technology, ensuring safety, reliability, and longevity.

★ Condenser: Made from 304 stainless steel for fast cooling and stable analysis.

Leakage protection system: Ensures operator safety.

Safety door and alarm system: Ensures personal safety.

Digestion tube misalignment protection system: Prevents injury from reagents and steam.

Steam system low-water alarm: Prompts shutdown to prevent accidents.

Steam boiler over-temperature alarm: Shuts down to prevent overheating.