VELP Scientifica - UDK 159 Automatic Kjeldahl Analyzer

Manufactured by  VELP Scientifica
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Fully automatic Kjeldahl Analyzer (distillation unit with integrated colorimetric titrator).

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.
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Features of UDK 159 Automatic Kjeldahl Analyzer

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 

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 

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 - 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.

General Specifications

There are no General Specifications available.

Additional Specifications

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 (15.2x30.7x16.4 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

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