Velp UDK 159 Kjeldahl

UDK 159 Automatic Kjeldahl Analyzer

Fully automatic Kjeldahl Analyzer (distillation unit with integrated colorimetric titrator), for your analyses concerning different applications such as determining ammoniacal nitrogen, protein determination, nitrogen content (Kjeldahl or direct alkaline distillation), nitric nitrogen (after reduction/Devarda), phenols, volatile acids, cyanides and alcohol content.

 

VELP Scientifica

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UDK 159 combines distillation with analysis.

Automated Operation

  • Programmable boric acid, water, sodium hydroxide addition
  • Not necessary to set distillation time when titrating
  • Incorporates an AOAC recommended colorimetric titrator
  • Selectable steam generation output level 10% – 100%
  • Auto removal of residues from titrator & sample tube

High Tech

  • 6 inch color touch screen
  • Library of 55 programs (31 pre-defined, 24 customizable)
  • Choice of 6 languages – from a wide range downloadable
  • Balance, mouse & printer connections
  • No loss of nitrogen: distillate temperature stays below threshold
  • Accurate dosing of reagents with high precision pumps

Versatile Data Handling

  • Multiple data interfaces: Ethernet, USB and RS 232C
  • On-board archiving of data including from balance
  • Data exporting to pen drive or PC in .xls format
  • Data manipulation software can be user preferred

Outstanding Reliability

  • Maintenance-free, resistant, patented steam generator
  • Patented titanium condenser for unmatched performance
  • Durable technopolymer splash head
  • Chemically-resistant technopolymer housing

Operator Safety

  • Lever operation simplifies tube insertion / removal (all sizes)
  • Protection screen for distillation chamber
  • Drip tray collects splashes
  • Zero pressure steam generator

Ecology & Standards

  • Performs to AOAC, EPA, DIN and ISO standards
  • Incorporates TEMS™ technology*
    Automated water supply control reduces consumption
    *Saving Time, Energy, Money & Space

Recommendations

Video

UDK 159, the state-of-the-art
The UDK 159 is the extremely innovative, intuitive and simple solution for Kjeldahl nitrogen/protein determination at the same time. It offers the highest level reliability and accuracy, and is equipped with the most advanced safety features. Designed with premium materials, UDK 159 will provide precise analytical determination on many samples.

Product Code

Description Power Supply Code
UDK 159 230 V / 50 – 60 Hz F30200150

Including

A00001080 10001106 10000247 40001797
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A00001080Test tube ø 42×300 mm
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10001106Collecting flask 250 ml
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10000247Pincer for test tubes
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40001797Protective film for touch screen

Accessories

A00001083 A00001088 A00000144 A00000146 A00000185
    
A00001083Test tube Ø 80×300 mm for alcohol determination
    
A00001088Test tube Ø 48×260 mm
    
A00000144Test tube Ø 42×300 mm 250 ml, 3 pcs/box
    
A00000146Test tube Ø 26×300 mm 100 ml, 6 pcs/box
    
A00000185Test tube Ø 50x300mm, 400ml
A00000206 A00000043 A00000005 A00001009 A00000195
    
A00000206Spacer for test tube Ø 48×260 mm
    
A00000043Test tube connection Ø 26 mm, Ø 48 mm and 500 ml Kjeldahl balloon
    
A00000005Connection Cable, RS232 for balance
    
A00001009Printer (connection cable included)
    
A00000195Printer Adapter USB-RS232
A00000202 A00000215 A00000082 A00000285 A00000264
    
A00000202IQ/OQ/PQ UDK 159 Manual
    
A00000215Waterproof mouse
    
A00000082Kjeldahl balloon, 500ml
    
A00000285Alcoholic strenght kit
    
A00000264H3BO3 tank (5-liter) with caps
A00000265 A00000266 A00000267 A00000316
    
A00000265NaOH tank (10-liter) with caps
    
A00000266H2O tank (20-liter) with caps
    
A00000267Residues tank (20-liter) with caps
    
A00000316Vreceiver – Boric Acid Powder with Indicator for colorimetric titration

 

GENERAL FEATURES
Structure: Corrosion-resistant technopolymer
Display: 6″ color touch screen
Time related to start for Devarda alloy analysis: 0 – 99 min
Protocol library: 55 methods: 31 pre-installed + 24 customizable
Reproducibility (RSD): ≤ 1 %
Recovery: ≥ 99.5 % at nitrogen levels between 1 and 200 mg N
Detection Limit: ≥ 0.1 mg N
Power: 2200 W
Weight: 31 kg / 68.3 lb
Dimensions (WxHxD): 385x780x416 mm (15.2×30.7×16.4 in)
PERFORMANCE
Analysis time: from 4 minutes (including titration)
Sodium hydroxide addition: automatic
Water addition: automatic
Boric acid addition: automatic
Sodium hydroxide volume: 0 – 150 ml
Water volume: 0 – 200 ml
Boric acid volume: 0 – 100 ml
Distillation and titration residues removal: automatic
Steam flow regulation: from 10 to 100 %
Tap water consumption: from 0,5 l/min at 15 °C – from 1 l/min at 30 °C
Connections: Ethernet, 2 x USB and RS232 for PC, printer, mouse, pen drive, balance
On-board archive for data storage

 

Automatic Kjeldahl Analyzer

The UDK 159 Kjeldahl Analyzer runs automatically, after setting sodium hydroxide, water and boric acid addition, the steam generation output from 10 to 100% using the innovative 6” color touch screen. The high-precision pumps and burette ensure constant accurate dosing of reagents and with the integrated colorimetric titrator (AOAC recommended) you will have reliable results concerning your nitrogen and protein determinations. Automatic titration vessel cleaning provides significant advantages including reducing maintenance to a minimum.

UDK 159 Kjeldahl Analyzer – TEMS™ Technology

UDK Kjeldahl distillation units works with the innovative TEMS™ benefits, for huge savings.

Time Saving – Fast and frequent analyses; no heating delay between runs
Energy Saving – Cooling water consumption starting from only 0.5 l/min; excellent insulation
Money Saving – Cost reduction is substantial, in line with reduced power consumption
Space Saving – The extremely compact footprint saves useful laboratory bench space

UDK 159 Kjeldahl Analyzer – Fully Automated Analysis

The completely automatic Kjeldahl distillation and titration system offers great performance and the maximum in terms of safety for the user.

Automatic addition of all the reagents involved (sodium hydroxide, water, boric acid, titrant solution) with low level warning simplifies the routine activity whilst the possibility to set the steam output from 10% to 100% enlarges the application range of UDK 159. Automatically the unit will perform distillation and titration.

At the end of the analysis, all the residues can be aspirated automatically, both for distillation and titration.

UDK 159 Kjeldahl Analyzer – Maximum Safety Standard

UDK 159, the automatic Kjeldahl analyzer, ensures high safety standards because of the several safety features

  1. Steam Generator without Pressure
    2. Lever with Sensor
    3. Protective Door with Sensor
    4. Cooling Water Flow-Rate Detector
    5. Test Tube Sensor
    6. Drip Tray
    7. Service Door (+ Electrical Shutdown)
    8. Colored Inlet Reagent Tubes
    9. Visual Reagent Level Warning
    10. Transparent Window +
    Titration Overflow Sensor

UDK 159 Kjeldahl Analyzer – Exclusive Titanium Condenser

VELP Scientifica has developed and patented the innovative titanium condenser able to ensure high performance and considerable water savings (from 0.5 l/min).
The graph shows the high efficiency of the titanium condenser compared to the traditional glass one available on the market. The titanium condenser ensures that distillate temperature always remains below the safe threshold value (35 °C), as indicated in the Kjeldahl method.

UDK 159 Kjeldahl Analyzer – Patented Steam Generator

The steam generator used by UDK Kjeldahl distillation units offers unique performance, being a patented solution

Rapid (p)re-heating time
Total safety: no internal pressure
Low thermal dispersion
Great repeatability
High performance and resistance
Maintenance-free
Safety-thermostat
Works with deionized water

It is also possible to set the steam output from 10% to 100%.

UDK 159 Kjeldahl Analyzer – Multitasking Software

Improved communication leads to improved efficiency. The display enables the operator to set all the parameters for a fully automatic control of the distillation and titration processes.

  • Excellent usability
  • Flexible, versatile and multi-language
  • Intuitive data entry and programming
  • Unlimited library with all the analyses
  • Data export in .xls, .txt, .csv (according to LIMS) also on USB key
  • Direct access to the archive from remote PC in real time without any download

UDK 159 Kjeldahl Analyzer – Colorimetric Titration

The automatic Kjeldahl analyzer UDK 159 is the top of the range model offering the ultimate in capabilities including colorimetric titration, as recommended by the AOAC.

The UDK 159 colorimetric titration is:

calibration-free
maintenance-free
not sensitive to volume and external light
automated, for maximum simplicity and security

UDK 159, the most reliable titration system in the Kjeldahl analysis!

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 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.

Brochure & Leaflet

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.

VELP Scientifica FOOD & FEED Line – Chinese
Discover our premium solutions and food analyzers ideal for research centers and companies for N/Protein Determination (Kjeldahl and Dumas), Solvent Extrac…
UDK Series Automatic Kjeldahl Distillation Systems – Chinese Brochure
Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other app…
VELP Scientifica FOOD & FEED Line
Discover our premium solutions and food analyzers ideal for research centers and companies for N/Protein Determination (Kjeldahl and Dumas), Solvent Extrac…
UDK Series Automatic Kjeldahl Distillation Systems – Brochure
Learn more about our distillation units, used mainly for nitrogen and protein determination according to Kjeldahl method, but ideal also for many other app…
UDK 159 Automatic Kjeldahl Analyzer – Leaflet
Learn more about our fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator, AOAC recommended), with patented steam gen…
Valuable Information On Kjeldahl Method
Learn more about the Kjeldahl principle, first described by Johan Kjeldahl over a century ago (1883).

Application notes

Choose among a comprehensive library of Application Notes / White Papers and learn more on how to optimize the performance of your VELP instruments. These documents offer typical analyses of well-known samples, together with official references and suggestions, to make you an expert!

N/Ammonia Determination in Fertilizers – Kjeldahl Method
Healthy plants often contain 3 to 4 percent nitrogen in their above-ground tissues. This is a much higher concentration compared to other nutrients. Nitrog…
N/Protein Determination in Liquid Fertilizers – Dumas vs Kjeldahl Method
A fertilizer is any type of organic or inorganic substance that contains nutrients, macroelements or microelements, in forms assailable by plants, to maint…
N/Protein Determination in Rapeseed – Dumas vs Kjeldahl Method
Rapeseed meal, called canola meal in North America, Australia and some other countries, is a high protein-containing material that can be used as a feed fo…
N/Ammonia Determination in Water – Kjeldahl Method
Water is the most important resource on Earth, for humans and other living organisms alike. Despite this, nearly half of the world’s population does not ha…
N/Protein Determination in Barley – Dumas vs Kjeldahl Method
Protein content of malting barley is important because it affects malting, brewing, and their end products. Discover more on the results obtained with Kjel…
Nitrogen/Protein Determination in Pasta
Learn more about the Nitrogen/protein determination in pasta performed with the VELP UDK and DKL Kjeldahl Analyzers.
Alcoholic Strenght in Spirit Drinks
The ethylic alcohol, produced during the fermentation, determines the alcoholic strength and it can be measured by volume with our UDK. Learn how to obtain…
N/Protein Determination in Nuts – Kjeldahl method
Nuts are an excellent source of protein and healthy fats; their amounts vary depending on the type of nut.
Peanuts, for example, provide a good sour…
Nitrogen Determination in Water & Sludge – Kjeldahl method
The properties of water, waste water and sludge vary considerably depending upon their source. For example, in unpolluted waters, low nitrogen levels make …
Casein Determination in Milk – Kjeldahl method
Casein proteins are a family of proteins involved in the production of cheese and fermented milk. They are also extremely important nitrogen compounds in t…