Safety, efficiency and precision for high-throughput laboratories

The UDK 169 is designed for high-throughput laboratories looking for precise and reproducible results of Kjeldahl nitrogen TKN, proteins, ammoniacal nitrogen, nitric nitrogen (Devarda), TVBN, sulfites, phenols, volatile acids, cyanides, and alcohol content.

UDK 169 can be used in combination with the AutoKjel autosampler, for a highly productive system capable of autonomously processing sample tubes, which are fed directly into the fully automatic distillation and titration unit.

• The fully automatic process ensures efficient operations, distillation and titration performed simultaneously  
• Shortest time-to-results with online titration and automatic results calculation
• Premium result accuracy and precision thanks to the integrated colorimetric titrator with high precision burette
• Programmable boric acid, water, sodium hydroxide addition
• Selectable steam generation output level 10% – 100%
• Auto removal of residues from titrator & sample tube
• Clear and intuitive operations thanks to the Smart User Interface and digital display
• Maximum safety for the operator
• Unmatched flexibility with the autosampler and a wide accessory range

Maximum Productivity with Autokjel

UDK 169 used in combination with the AutoKjel autosampler, for a highly productive system is capable of autonomously processing up to 24 samples with standard test tubes (250 ml) or 21 Jumbo test tubes (400 ml).

Sample tubes are taken from the carousel and fed directly into UDK 169 for further processing and reliable results, allowing the user to operate in complete safety and with extreme ease, without requiring an attendant.

The UDK 169 & AutoKjel Kjeldahl analyzer is developed for continuous operation, providing the maximum sample throughput and data processing automation.

Premium accuracy and precision

The automatic Kjeldahl analyzer UDK 169 colorimetric titrator guarantees accuracy, precision, and a long lifetime.

With a limit of detection (LOD) of 0.015 mgN and a limit of quantification (LOQ) of 0.04 mgN, UDK 169 is perfect even for challenging analyses with samples containing a low amount of Nitrogen.

The system relies on a colorimetric measurement of a chemical reaction with automatic endpoint detection.

VELP colorimetric titrator benefits:

• Completely automatic procedure
• Calibration-free
• Maintenance-free

The UDK 169 allows to constantly monitor the titration with the real-time graph displayed on the instruments.

Unrivalled technologies to support your laboratory - Titanium Condenser and Technopolymer Splash Head

The UDK 169 features the unique VELP patented titanium condenser designed for efficient thermal exchange and low water consumption.

The distillate temperature is always kept below the Kjeldahl threshold value (35 °C), as indicated in the Kjeldahl method, without nitrogen loss.

• Reduced water consumption
• High resistance material with prolonged lifespan
• Reduced break risks during routine cleaning

The exclusive VELP Technopolymer Splash Head incorporated in the UDK 169 is designed for high throughput providing state-of-the-art durability and resistance.

• Chemical resistant materials
• Unmatched lifespan of up to 10,000 analyses
• Maintenance-free and no risk of breaking

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