NK9830A Semi-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 operation: Automatically completes reagent addition, temperature control, sample distillation, separation and recovery, automatic discharge of waste liquid from the digestion tube, and stops with a prompt after separation is complete.

Control system: 10-inch color touchscreen with easy English and Chinese language switching.

Dual-mode analysis: Supports both automatic and manual analysis.

Three-level authority management: Includes electronic records, electronic labels, and operation traceability query system that meets certification requirements.

Auto shutdown: Shuts down automatically after 60 minutes of inactivity, ensuring energy-saving and safety.

★ Automatic calculation: Inputs titration volume and automatically calculates, stores, displays, queries, and prints analysis results, offering partial functions of a fully automated system.

★ Built-in protein factor lookup table: Users can access, query, and integrate it into system calculations.

Distillation time: Freely adjustable from 10 to 9990 seconds.

Steam flow: Adjustable from 1% to 100% to accommodate different sample concentrations.

Automatic waste discharge: Waste liquid from the digestion tube is automatically discharged, reducing labor intensity for staff.

★ Automatic pipe cleaning: Alkaline tubing is automatically flushed during shutdown to prevent clogging and ensure precise liquid supply.

Data storage: (16M) Can store up to 1 million records for user reference.

5.7CM automatic thermal printer: Includes 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 system safety, reliability, and longevity.

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

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 accidents.

Steam overpressure alarm: Shuts down to prevent accidents.

Sample over-temperature alarm: Shuts down to prevent overheating of the sample, ensuring accurate analysis results.

Cooling water flow monitoring: Prevents sample loss and inaccurate analysis results due to insufficient water flow.