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Analytical Instruments
Elemental Analyzers
Digestion Units
Distillation Units
Solvent Extractors
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Dietary Fiber Analyzers
Oxidation Stability Reactor
Consumables
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Magnetic Stirrers
Heating Magnetic Stirrers
Heating Plates
Overhead Stirrers
Vortexers and Shakers
Dispersers
COD Thermoreactors
BOD and Respirometers
Cooled Incubators
Flocculators
Turbidimeter
Open Circulating Baths
Pumps
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Industries
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Cosmetics and Personal Care
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Nitrogen/Protein Determination
Carbon Determination
Solvent Extraction
Fiber Determination
Oxidation Stability Studies
BOD and Respirometric Studies
Jar Test & Leaching Test
Chemical Oxygen Demand
Incubation
Stirring
Stirring & Heating
Mixing & Shaking
Dispersing
Vacuum Generation
Turbidity
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Analytical Instruments
>
Digestion Units
>
Semi-Automatic Units
>
DK 8 Digestion Unit
DK 8 Digestion Unit
Kjeldahl Digestion Units with 8-position aluminum heating block that offers an excellent thermal homogeneity.
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Contact a specialist
DK 8
F30100420
DK 8 Digester System
S30100420
DK 8
F30110420
DK 8 Digester System
S30110420
Close
Thermal homogeneity and precision
The DK 8 Series digestion unit with aluminum heating block ensures
high thermal homogeneity heating up to 450 °C
. The temperature of the block is constantly controlled by a microprocessor and is extremely stable, homogeneous and precise: ±0.5°C at all selectable temperatures.
The DK 8 Series guarantees
accuracy
and
repeatability
. The DK 8 performs batch digestion of up to 8 samples with 250 ml test tubes - Ø 42 m,
reducing the energy consumption
(-13% compared to the previous series). Low energy consumption provides lower costs of analysis and limits CO2 release.
Space saving design
The design of the DK series has been carefully engineered to allow laboratories to
save valuable space under the hood.
DK Digesters have
very compact dimensions
: the new aluminum heating block has been lowered and the vertical proportions allow to free precious space in the laboratory.
The structure is made of
stainless steel
that has been specifically designed and tested to ensure strong resistance to chemicals and mechanical stress.
The
aluminum block protection grid
provides enhanced heating performance and protects the heating block from splashes and chemicals.
Easy-to-use with the intuitive digital interface
The
bright digital display
provides maximum visibility and easy-to-read information.
The instrument is operated with 4 keys to navigate the menu options and
program the digestions in a simple and fast way
.
Through the intuitive graphic display it is possible to set up to 20 methods with 4 temperature ramps.
Acoustic signals
inform the operator of the completion of the analysis facilitating the daily use of the digester.
The inclination of the front panel protects it from chemical spillage at high temperatures.
Fume Neutralization System
For applications where the digestion process produces fumes, acid gases or corrosive substances, the below specific accessory is strongly recommended:
KS 1000
Scrubber
neutralizes all the fumes
TEMS™ Technology
DK Series Kjeldahl digestion units work with the innovative TEMS™ benefits, for huge 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
Models
Please select the model
Genuine consumables for your digestions
Choosing the right consumables allow the optimization of analytical operations to achieve the highest possible performance of your Digestion Unit. We strongly recommend the use of VELP original consumables in order to be sure to obtain the best performance form your VELP instrument.
The addition of a suitable catalyst, along with high temperature, have influence on the speed and the efficiency of the mineralization in Kjeldahl analysis. Achieving the highest level of performance in a wide range of Kjeldahl applications is now possible with
VELP genuine KjTabs™ catalyst and antifoaming tablets
.
VELP
Nitrogen Free Weighing Boats
are the perfect solution to all the difficult transfer operations of powders or syrupy samples into mineralization test tubes.
Adapter for probe Ø3mm for DK/DKL/ECO
cod. A00000362
Glass cap
cod. A00000243
IQ/OQ DK Manual
cod. A00000407
KjTabs VCM - 1000 pcs/box
cod. A00000274
KjTabs VCT - 1000 pcs/box
cod. A00000276
KjTabs VKPC - 1000 pcs/box
cod. A00000275
KjTabs VS Antifoam - 1000 pcs/box
cod. A00000283
KjTabs VST - 1000 pcs/box
cod. A00000277
KjTabs VTCT - 1000 pcs/box
cod. A00000281
KjTabs VW - 1000 pcs/box
cod. A00000282
Mineralization Rod, pack. 10 pcs
cod. A00000431
Sample rack DK8-DKL8 test tubes 400ml
cod. A00000403
Sample rack for DK-DKL8
cod. A00000173
Stand for DK-DKL8-DK18/26
cod. A00000184
Suction cap and drip tray for DK-DKL8
cod. A00000175
Support for DK6-DK8-DK18/26-DK6/48
cod. A00000191
Test tube Ø50x300 mm, 400 ml
cod. A00000185
Test tubes Ø42x300 mm, 250 ml 3pcs/box
cod. A00000144
Weighing boats 58x10x10 mm, 100 pcs/box
cod. CM0486000
Weighing boats 70x23x15 mm, 100 pcs/box
cod. CM0486001
TECHNICAL DATA
Construction material:
Epoxy painted with chemical resistant coating
Temperature range:
Ambient to 450 °C / 842 °F
Stability of the heating block temperature:
± 0,5 °C
Precision of the heating block temperature:
± 0,5 °C
Set temperature:
Digital readout in °C or °F
Temperature Calibration:
Automatic
Selectable ramps:
up to 4 per program
Digestion time range:
1 to 999 minutes
Time selection:
1 minute steps
Countdown:
Digital readout
Selectable language:
EN, IT
Heating Places
8-position
Size of tubes
250 ml test tubes (Ø 42 mm)
Power:
1150 W
Dimensions (WxHxD):
(aluminum block only)
230x140x420 mm
9.1x5.5x16.5 in
Dimensions (WxHxD):
230x690x420 mm
9.1x17.2x16.5 in
Weight:
11 kg (24.2 lb)
Brochures & Leaflets
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.
DK Series Kjeldahl Digestion Units - Brochure
Download
Analytical Instruments - Line Brochure [EN]
Download
Product Portfolio - Brochure [EN]
Download
Valuable Information On Kjeldahl Method
Download
Comparison tables
Select the category of products you are interested in and this tool will give you an easy overview of what is available at VELP in order to find the product that is perfect for you. These comparison tables provide a brief description with side by side features from basic equipment to the most advanced analytical solutions.
VELP Test Tubes Comparison Table
Download
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!
E-book - Barley and Feed: N/Protein Determination and Fiber Determination
Download
E-book - Kjeldahl and Dumas Method Comparison: N/Protein Determination in Feed
Download
Casein Determination in Milk - Kjeldahl method
Download
Guidelines for choosing the correct Velp Kjtabs in Kjeldahl Analysis
Download
N/Protein Determination in Cereals - Kjeldahl method
Download
N/Protein Determination in Cheese - Kjeldahl method
Download
N/Protein Determination in Feed - Kjeldahl method
Download
N/Protein Determination in Fishmeal - Dumas and Kjeldahl method comparison
Download
N/Protein Determination in Milk - Kjeldahl method
Download
N/Protein Determination in Milk Powder - Kjeldahl method
Download
N/Protein Determination in Nuts - Kjeldahl method
Download
N/Protein Determination in Probiotic Drinks - Kjeldahl method
Download
Nitrogen and Protein Determination in Commercial Whole Liquid Milk - Dumas vs Kjeldahl Method
Download
Nitrogen and Protein Determination in Insect Flour: Kjeldahl and Dumas comparison
Download
TKN Determination in Water and Wastewater
Download
Total Nitrogen determination in Urea – Dumas vs Kjeldahl Method
Download
Whey Protein Determination in Milk
Download
Certifications
Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.
CE Declaration of Conformity VELP Scientifica Digestion System and Hydrolysis
Download
Service offering
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FAQ
Check technical sheets with answers to most frequently asked questions
What do we have to add to the test tube to perform the digestion step?
To properly perform the digestion step, it is necessary to prepare the glass test tube with the sample and:
1. KjTabs™ catalyst tablets to accelerate the digestion
2. Antifoam tables (especially recommended in the case of samples with a high-fat content)
3. 12 - 15 ml of concentrated sulfuric acid (98%)
How to insert the sample into the test tube?
The sample must be weighed within Nitrogen free weighing boats (CM0486000) and then placed inside the test tubes. In so doing there is no risk of part of the sample sticking to the test tube parts and the digestion therefore not being performed correctly.
Which kind of test tubes does VELP supply?
VELP provides a full set of test tubes.
Download here
the comparison table!
Description
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DK 8 Digestion Unit
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