Kjeltec™ Distillation Unit


Kjeltec™ 8000 – Kjeldahl Distillation Solutions for Food and Feed

The Kjeltec™ range offers a series of automated distillation units designed primarily for Kjeldahl analysis, but widely used for many different distillation chemistries.

Kjeltec™ features include variable steam output, intelligent cooling water and distillate temperature control, reagent addition, tube emptying and FOSS patented SAfE technology in all models.

A fully automated analyser, Kjeltec™ 8400, with on board self cleaning colorimetric titration system completes the range. Optional Kjeltec™ 8420/8460 Auto Samplers for 20 or 60 samples offer fully unattended operation of the analyser.

Sample Parameters
Raw materials and finished products in Food, Feed and Agriculture Nitrogen, Protein

• Automatic dilution, alkali addition, distillation and tube emptying provide ease of use.
• Variable output steam generator broadens application area to other volatile components.
• Official and accurate procedures (ISO, AOAC, EPA, DIN) simplify validation.
• Patented SAfE* feature for safe distillation of tubes with salt cakes.
• Built-in safety systems for user protection.
• Self adjusting cooling water control saves water and reduces costs.
• Bellows pumps for accurate dispensing of reagents.
• Alkali resistant plastic splash head & tube emptying vessel for long lifetime.

Performance data
Analysis time 3.5 minutes at 30 mg N (6.5 minutes at 200 mg N)
Distillation capacity ~ 40 ml/min
Measurement range  0.1 – 200 mg N
Reproducibility  1% RSD (including the digestion step)
Recovery  > 99.5% at nitrogen levels between 1 – 200 mg N
Installation Requirements  
Power supply 200 – 240 V 50 – 60 Hz
Tolerable voltage variation ± 10 %
Power consumption 2 200 W
Water consumption (during distillation only) 3 l/min at water temp of 25°C *1 l/min at water temp of 15°C
* Circulating Cooler recommended at >25°C
Weight 35 kg
Dimensions (W x D x H) 480 × 580 × 690 mm

All the features of the KjeltecTM 8100 plus:
• Receiver solution addition
• Automatic safety door
• External titration connection (Mettler, Metrohm, Schott, etc.)
• Modularly upgradeable to analyser and sampler system

Performance data at 230 V
Analysis time 3.5 minutes at 30 mg N (6.5 minutes at 200 mg N)
Distillation capacity ~ 40 ml/min
Measuring range

0.1 – 200 mg N

Reproducibility 1% RSD (including the digestion step)
Recovery > 99.5% at nitrogen levels between 1 – 200 mg N
Installation requirements
Power supply 200 – 240 V 50 – 60 Hz
Tolerable voltage variation ± 10 %
 Power consumption  2 200 W
 Water consumption (during distillation only) 3 l/min at water temp of 25°C

*1 l/min at water temp of 15°C
*Circulating Cooler recommended at >25°C

 Weight net  Kjeltec™ (8100, 8200, 8400) 35kg
 Dimensions: (W×D×H)  480 × 580 × 690 mm

All the features of the KjeltecTM 8200 plus:
• Titration, calculation and reporting.
• Upgradeable to 20 or 60 place auto sampler for fully unattended operation.
• Interchangeable burette for easy titrant exchange.
• Ethernet connection eliminates communication problems with printers and balances.
• Touch sensitive colour display

Performance data at 230 V
Autosampler capacity Kjeltec™ sampler 8420, 1 rack with 20 Kjeldahl tubes 250 ml or 400 ml
Kjeltec™ sampler 8460, 3 racks with 20 Kjeldahl tubes 250 ml or 400 ml
Analysis time 3.5 minutes at 30 mg N (6.5 minutes at 200 mg N)
Distillation capacity

~ 40 ml/min

Measuring range 0.1 – 200 mg N
Reproducibility 1% RSD (including the digestion step)
Recovery
Installation requirements
Power supply 200 – 240 V 50 – 60 Hz
Tolerable voltage variation ± 10 %
Power consumption 2 200 W
Water consumption (during distillation only) 3 l/min at water temp of 25°C

*1 l/min at water temp of 15°C
* Circulating Cooler recommended at >25°C

Weight net Kjeltec™ (8100, 8200, 8400)

35kg

Sampler Kjeltec™ 8420

71kg

Sampler Kjeltec™ 8460

89kg

Dimensions: (W×D×H) 480 × 580 × 690 mm 645 × 840 × 900 mm 1000 × 800 × 900 mm

Overview of Kjeltec Models

200 8100 8200 8400
Variable output steam generator x x x
Water saving system x x x
Cooling water flow control x x x
Distillate temperature monitor x x x
Polypropylene splash head x x x x
Polypropylene tube emptying vessel x x x
Bellows pumps for reagent addition x x x x
Automatic alkali addition x x x x
Automatic dilution water addition x x x
Automatic receiver solution addition x x
SAfE – Steam Addition for Equilibration x x x x
Tube emptying/Waste collection x x x
Reagent alarms x x x
Removable drip tray x x x x
Automatic safety door x x
Interlocked safety door x x x
Removable safety door x x x
Tube-in-place safety x x x
Tube replacement sensor x x x
Colorimetric titration system Opt. x
External titrator connection Opt. Opt.
Interchangeable burette x
Titration bypass x
Results calculation x
Storage of raw data in instrument 40 batch
Data management PC software x
Storage of raw data with PC software Unltd
Ethernet connection for:
PC x
Balance x
Printer x
Autosampler system 8420 or 8460 Opt.

 

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