UDK 159 Automatic Kjeldahl Nitrogen Protein Analyzer

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UDK 159 Automatic Kjeldahl Nitrogen Protein Analyzer

Fully automatic distillation and titration for Kjeldahl protein determination, Non-Protein Nitrogen (NPN), volatiles and more. Meeting the most demanding requirements in terms of precision, accuracy, and safety.

Safety, efficiency and precision for high-throughput laboratories

The UDK 159 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. 
  • 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 a wide accessory range 

Premium accuracy and precision

 

The automatic Kjeldahl analyzer UDK 159 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 159 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 159 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 159 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 159 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

Reliability and safety for your lab

The UDK 159 is provided with the most complete set of safety features to ensure maximum operator safety. Sensors monitor tube in place, safety doors, reagent levels, cooling water flow-rate and more. 

The VELP Patented Steam Generator guarantees safe working conditions working without pressure:

  • Rapid pre-heating time
  • High performance and resistance
  • Maintenance-free
  • Works with deionized water

Streamlined processes and enhanced service support with VELP Ermes Cloud Platform

UDK 159 features the unique connection option via Wi-Fi or LAN to VELP Ermes Cloud Platform, the Smart Lab solution allowing you to reduce routine operations thanks to the real-time monitoring of your Kjeldahl analysis wherever you are, at any time. 

Just by using a PC, a Smartphone or a Tablet you can manage multiple instruments, consumables, workflows, analysis data, and instrument working conditions.

Immediate event and alarm notifications inform you about analyses and the remote analysis interruption guarantees total control of your laboratory processes. 

Grant access to instruments and data only to specific people in your organization and decide whether you like to share information directly with VELP or with authorized service centers to benefit from a reduced diagnostic time and enhanced service support. 

Nitrogen determination at high throughput gets to a new level with VELP Ermes Cloud Platform.

Intuitive user interface ensuring ease-of-use

 
Intuitive software ensuring ease-of-use and data management at its best


Bright 7″ color touch screen and easy-to-use software guide the operator step-by-step and provide fast feedback when setting the parameters and the analysis status.

Grant access to instruments and data only to specific people in your organization thanks to the user management feature.

  • 3 levels of authorizations and permissions according to GLP 
  • Clear readability of analysis time
  • Intuitive menu and sub-menu navigation
  • Dedicated service menu

TEMS™ Technology

TEMS™ Technology
UDK Series Kjeldahl distillation units work with the innovative TEMS™ benefits, for unmatched savings.


Time Saving: rapid heating reduces wasted time
Energy Saving: limited energy consumption thus cutting CO2 emissions
Money Saving: cost reduction for each analysis
Space Saving: the narrow footprint saves valuable laboratory bench space

Vreceiver™ boric acid with indicator sealed bags

VELP unique Vreceiver™ is a certified formula composed of Boric Acid powder and a mixture of indicators mentioned by AOAC methods (Bromocresol Green and Methyl red) allowing fast and standardized receiving solution preparation for colorimetric titration.

The receiving solution is prepared in a few minutes facilitating the day by day operations instead of the typical time consuming process using single reagents. The result is a reliable and standardized solution for colorimetric titration.

Barcode technology for smart operations

The optional barcode reader matched with the sample tubes with barcode (Code A00000144) simplifies distillation data management and result calculation.

The barcode on the tubes can be scanned in order to transfer the data automatically for an optimized analysis workflow.
  • Reduced risk of errors
  • Automated processes
  • Maximized efficiency

Included Accessories

Optional Accessories

TECHNICAL DATA

STRUCTURECorrosion-resistant technopolymer
DISPLAY7″ color touch screen
TITRATION GRAPHYes
ANALYSIS TIMEFrom 4 minutes (including titration)
MEASURING RANGE0.04 – 220 mg N
REPRODUCIBILITY (RSD)≤ 1 %
RECOVERY≥ 99.5 %
DETECTION LIMIT (LOD)> 0.015 mg N
SODIUM HYDROXIDE ADDITIONAutomatic
WATER ADDITIONAutomatic
BORIC ACID ADDITIONAutomatic
DISTILLATION RESIDUES REMOVALAutomatic
TITRATION RESIDUES REMOVALAutomatic
TITRATION VESSEL CLEANINGAutomatic
STEAM FLOW REGULATION10 – 100 %
DELAY TIME (DEVARDA ALLOY ANALYSIS)00 sec – 99 min 59 sec
DISTILLATION IN SERIESYes
WATER CONSUMPTIONFrom 0,5 L / min to 15°C
From 1 L / min to 30°C
LANGUAGE SELECTIONYes
PROTOCOL LIBRARY32 standard methods + 24 customizable
USER MANAGEMENTYes
ARCHIVE (ON-BOARD DATA STORAGE)Yes
21 CFR PART 11 COMPLIANCEYes, accessory 
CONNECTIVITY2 x USB (balance, barcode scanner, mouse, printer, pen drive); Ethernet (Pc, Ermes)
POWER INPUT2200 W
DIMENSIONS (WXHXD)385x780x416 mm
15.2×30.7×16.4 in
WEIGHT31 kg
68.3 lb
ERMES CONNECTIONYes, via Wi-Fi or LAN