UDK 169 with AutoKjel Autosampler -Automatic Kjeldahl Nitrogen Protein Analyzer

Fully automatic distillation and titration for Kjeldahl protein determination, Non-Protein Nitrogen (NPN), volatiles and more. Connection to autosampler for high sample throughput, maximum flexibility and unattended operation.

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

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.

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.

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

Reliability and safety for your lab

The UDK 169 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 169 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 software ensuring ease-of-use and data management at its best

The bright 7″ color touch screen and easy-to-use software guide the operator step-by-step.

Users’ management with 3 levels of authorizations and permissions according to GLP
Real-time graph
Automatic result calculation and onboard archive
Control features for AutoKjel autosampler
Analysis and instruments statistics
Distillation in series feature to speed up data entry
Data export in .xls, .txt, .csv and maximum compatibility for LIMS

The optional barcode technology simplifies distillation data management and results calculation.

The UDK 169 software can be upgraded with the optional 21 CFR Part 11 Package for Pharmaceutical, Cosmetic and Food industry laboratories that require compliance with FDA regulation.

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 CO_² 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

21 CFR Part 11 Software Package Upgrade

Achieve compliance for 21 CFR Part 11 provisions for nitrogen determination with the dedicated optional Package for UDK 159 or 169 software.

The FDA’s Code of Federal Regulations Title 21 Part 11 defines the requirements for using electronic records and electronic signatures on computerized systems. The integrity, reliability, and trustworthiness of electronic records must be fulfilled as for 21 CFR Part 11 basic requirements.

VELP 21 CFR Part 11 Package helps you achieve full compliance with Subpart B – Electronic Records and Subpart C – Electronic Signatures of the regulation.

Included Accessories

Optional Accessories

TECHNICAL DATA

STRUCTURE	Corrosion-resistant technopolymer
DISPLAY	7″ color touch screen
TITRATION GRAPH	Yes
ANALYSIS TIME	From 4 minutes (including titration)
MEASURING RANGE	0.04 – 220 mg N
REPRODUCIBILITY (RSD)	≤ 1 %
RECOVERY	≥ 99.5 %
DETECTION LIMIT (LOD)	> 0.015 mg N
SODIUM HYDROXIDE ADDITION	Automatic
WATER ADDITION	Automatic
BORIC ACID ADDITION	Automatic
DISTILLATION RESIDUES REMOVAL	Automatic
TITRATION RESIDUES REMOVAL	Automatic
TITRATION VESSEL CLEANING	Automatic
STEAM FLOW REGULATION	10 – 100 %
DELAY TIME (DEVARDA ALLOY ANALYSIS)	00 sec – 99 min 59 sec
DISTILLATION IN SERIES	Yes
WATER CONSUMPTION	From 0,5 L / min to 15°C From 1 L / min to 30°C
LANGUAGE SELECTION	Yes
PROTOCOL LIBRARY	32 standard methods + 24 customizable
USER MANAGEMENT	Yes
ARCHIVE (ON-BOARD DATA STORAGE)	Yes
21 CFR PART 11 COMPLIANCE	Yes, accessory
CONNECTIVITY	2 x USB (balance, barcode scanner, mouse, printer, pen drive); Ethernet (Pc, Ermes); RS232 (Autosampler)
POWER INPUT	2300 W
DIMENSIONS (WXHXD)	385x780x416 mm 15.2×30.7×16.4 in
WEIGHT	31 kg 68.3 lb
ERMES CONNECTION	Yes, via Wi-Fi or LAN

UDK 169 & AutoKjel

AUTOSAMPLER CAPACITY	24-pos. carousel, 250 ml test tubes (included with AutoKjel) 21-pos. carousel, 400 ml test tubes (optional)
POWER	2250 W
DIMENSIONS (WXHXD)	830x1730x640 mm 32.7×68.1×25.2 in
WEIGHT	131 kg 288.8 lb