Distillation Unit 230V/50-60Hz – UDK 169
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Distillation Unit 230V/50-60Hz – UDK 169
Manufacturer: Velp
Part Number: F30200160
Fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator) with connection to autosampler, for high sample throughput, maximum flexibility and unattended operation.
UDK 169 & AutoKjel, High Sample Throughput
The UDK 169 is the extremely innovative, intuitive and simple solution for Kjeldahl nitrogen/protein determination at the same time. It can be used as stand-alone or combined with the AutoKjel autosampler for unattended operation and automatic processing of up to 24 samples. The best configuration when high productivity is needed.
UDK 169 combined with the autosampler provides high-capacity distillation and analysis.
OVERVIEW
Automated Operation
- Continuous process for 24 x 250 ml or 21 x 400 ml samples
- 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
- Connection to autosampler for unattended operation
- 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 consumptionDK Kjeldahl distillation units work with the innovative TEMS™ benefits, for huge savings.*Saving Time, Energy, Money & Space
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Description
Distillation Unit 230V/50-60Hz – UDK 169

Fully automatic Kjeldahl Analyzer (distillation unit plus integrated colorimetric titrator) with connection to autosampler, for high sample throughput, maximum flexibility and unattended operation.
UDK 169 & AutoKjel, High Sample Throughput
The UDK 169 is the extremely innovative, intuitive and simple solution for Kjeldahl nitrogen/protein determination at the same time. It can be used as stand-alone or combined with the AutoKjel autosampler for unattended operation and automatic processing of up to 24 samples. The best configuration when high productivity is needed.
UDK 169 combined with the autosampler provides high-capacity distillation and analysis.
OVERVIEW
Automated Operation
- Continuous process for 24 x 250 ml or 21 x 400 ml samples
- 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
- Connection to autosampler for unattended operation
- 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 consumptionDK Kjeldahl distillation units work with the innovative TEMS™ benefits, for huge savings.*Saving Time, Energy, Money & Space
Recommendations
- A technical comparison table may assist in product selection (See Download section)
BENEFITS
UDK 169 Kjeldahl Analyzer – Maximum Productivity, Full Automation

The UDK 169 & AutoKjel Kjeldahl analyzer is developed for continuous operation, providing the maximum sample throughput and data processing automation. You will be supported by proven reliability, ease of use and time saving for safer and simpler activities.
Upgrade your analyzer at any time, since UDK 169 can be used stand-alone, or it can be combined with the AutoKjel autosampler, to drastically increase the productivity.
UDK 169 Kjeldahl Analyzer – Unmatched Flexibility
The engineering ensures high independence and flexibility, since the AutoKjel can stand a carousel of two dimensions, with 24-pos. of 250 ml or 21-pos. of 400 ml.
Sample tubes are taken from the carousel and fed directly into UDK 169 for further processing and reliable results.
UDK 169 Kjeldahl Analyzer – TEMS™ Technology
UDK Kjeldahl distillation units work 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 169 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 169. 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 169 Kjeldahl Analyzer – Maximum Safety Standard
The automatic Kjeldahl Analyzer UDK 169 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 169 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 169 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 169 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
- Instantaneous reporting
- Direct access to the archive from remote PC in real time without any download
UDK 169 software is also able to control the AutoKjel autosampler, when high productivity is required.
UDK 169 Kjeldahl Analyzer – Colorimetric Titration
The automatic Kjeldahl analyzer UDK 169 is the top of the range model offering the ultimate in capabilities including colorimetric titration, as recommended by the AOAC.
The UDK 169 colorimetric titration is:
- calibration-free
- maintenance-free
- not sensitive to volume and external light
- automated, for maximum simplicity and security
UDK 169, the most reliable titration system in the Kjeldahl analysis!
TECHNICAL 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 (1700 W at 115V) |
| 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 |
UDK 169 & AUTOKJEL
| Autosampler capacity: | 24-pos. carousel, 250 ml test tubes (included with AutoKjel) 21-pos. carousel, 400 ml test tubes (optional) |
| Power: | 2250w |
| Weight: | 131 kg (288.8lb) |
| Dimensions (W x H x D):
Tanks included |
830x1730x640 mm (32.7×68.1×25.2 in) |
| ACCESSORIES
Supplied with: A00001080 – Test tube Ø 42×300 mm 10001106 – Collecting flask 250 ml 10000247 – Pincer for test tubes 10004936 – Touch pen 40001798 – Protective film for touch screen |
OPTIONAL ACCESSORIES
A00001083 – Test tube Ø 80×300 mm for alcohol determination
A00001088 – Test tube Ø 48×260 mm
A00000144 – Test tube Ø 42×300 mm 250 ml, 3 pcs/box
A00000146 – Test tube Ø 26×300 mm 100 ml, 6 pcs/box
A00000185 – Test tube Ø 50x300mm, 400ml
A00000206 – Spacer for test tube Ø 48×260 mm
A00000043 – Test tube connection Ø 26 mm, Ø 48 mm and 500 ml Kjeldahl balloon
A00001009 – Printer (connection
A00000254 – IQ/OQ/PQ UDK 169 Manual
A00000256 – IQ/OQ AutoKjel Manual
A00000264 – H3BO3 tank (5-liter) with caps
A00000265 – NaOH tank (10-liter) with caps
A00000266 – H2O tank (20-liter) with caps
Vendor Information
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