Kjeldahl Distiller

DNP Series
Kjeldahl distillers for performing nitrogen analysis according to Kjeldahl in raw or processed products of the food industry. Besides performing nitrogen analysis according to Kjeldahl you can also determine alcohol, volatile acids, sorbic acid, SO2, phenols, cyanide, ammonia and nitric nitrogen content. Automatic titrator included depending on model. Analyses compliant with AOAC, ISO, EPA and DIN.

Available under 2 models: DNP-1500-MP & DNP-2000-MP.

Technical data sheet

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KJELDAHL DISTILLERS – DNP-1500-MP

Features

  • Electric steam generator with water level control.
  • Control of the system by microprocessor with LCD screen.
  • 21 user programs including:
    • Preheating, washing and ammonium sulphate test.
    • Preset programs for alcohols, cereals, dairy products, meat, fish, sewage waters, fertilizers, nuts and animal feed.
    • Free programs to set as required.
  • Automatic dilution water addition pump.
  • Automatic alkaline addition pump.
  • Pumps calibration by end user.
  • Language selection (ENG, ESP, FR).
  • Cooling water saving system.
  • External frame made of AISI-304 stainless steel painted with epoxy resin.

Programmable parameters and values

  • Dilution water: 0-240 ml
  • NaOH solution: 0-240 ml
  • Reaction time (delay): 0-30 minutes.
  • Distillation time: 0-30 minutes.
  • Steam power regulation: 30-100%

 

Performance

  • Measurement range: from 0,1 to 200 mg of N.
  • Nitrogen recovery: > 99,5%.
  • Reproducibility: ± 1%.
  • Distillation time: 4 min/100 ml.
  • Cooling water consume: 1,2 l/min.
  • Power: 2000 W (100%).
  • Programs: 20 user free.

Safety

  • Closed door detection.
  • Digestion tube detection.
  • Overtemperature thermostat
  • Overpressure switch.

 

Components supplied with the equipment

  • 1 macro sample tube of Ø 42×300 mm
  • 2 containers of 10 L for H2O and NaOH
  • 1 Anti-drip tray.
  • 1 Additional aspiration tube without filter.
  • Several connection hoses.
 

KJELDAHL DISTILLERS – DNP-2000-MP

Features

  • Electric steam generator with water level control.
  • Control of the system by microprocessor with LCD screen.
  • 21 user programs including:
    • Preheating, washing and ammonium sulphate test.
    • Preset programs for alcohols, cereals, dairy products, meat, fish, sewage waters, fertilizers, nuts and animal feed.
    • Free programs to set as required.
  • Automatic dilution water addition pump.
  • Automatic alkaline addition pump.
  • Automatic receiver solution addition pump.
  • Pumps calibration by end user.
  • Sample aspiration.
  • Language selection (ENG, ESP, FR).
  • Cooling water saving system.
  • External frame made of AISI-304 stainless steel painted with epoxy resin.
  • Optional external titrator.

Programmable parameters and values

  • Dilution water: 0-240 ml
  • NaOH solution: 0-240 ml
  • H3BO3 solution: 0-240 ml
  • Reaction time (delay): 0-30 minutes.
  • Distillation time: 0-30 minutes.
  •  Steam power regulation: 30-100%

 

Performance

  • Measurement range: from 0,1 to 200 mg of N.
  • Nitrogen recovery: > 99,5%.
  • Reproducibility: ± 1%.
  • Distillation time: 4 min/100 ml.
  • Cooling water consume: 1,2 l/min.
  • Power: 2000 W (100%).
  • Programs: 20 user free.

Safety

  • Closed door detection.
  • Digestion tube detection.
  • Overtemperature thermostat
  • Overpressure switch.

 

Components supplied with the equipment

  • 1 macro sample tube of Ø 42×300 mm
  • 2 containers of 10 L for H2O and NaOH
  • 1 container of 5 L for H3BO3
  • 1 Anti-drip tray.
  • 1 Additional aspiration tube without filter.
  • Several connection hoses.
 

 

KIT FOR AUTOMATIC TITRATION – KIT-TITRA-RAY

Features

  • Potentiometric titrator.
  • Multiple titration programs.
  • Kjeldahl nitrogen determination.
  • Results in N and protein percentage.
  • pH calibration.
  • Burette autocalibration.
  • Titration calibration.
  • Multiple users.
  • 2 USB ports:
    • Copy analysis tests and extract data.
    • Connect printer, keyboard or mouse.
    • Connect to balance.
  • Ethernet port: optional software connection.

Specifications

  • Resolution: 0,001 pH, 0,1 mV, ± 0,3 ºC.
  • Reproducibility: ± 0,001 pH.
  • Temperature compensation with probe Cat. Pt100.

 

Components

  • • Reaction vessels (5×50 mL and 5×150 mL).
    • Conical adapter (1x).
    • Magnetic stir bars (5x).
    • Sensor (type and quantity depends on application).
    • Syringe holding ring (1 for each syringe).
    • Syringe.
    • USB applications key.
    • Bottle caps (1xGL45 and 1xGL25).
    • Several connection hoses.
 

Reference L×D×H mm W Kg H2O tank L NaOH tank L BO3H3 tank L Titrator compatibility
DNP-1500-MP 400×380×790 2000 30 10 10 - no
DNP-2000-MP 400×380×790 2000 30 10 10 5 yes
TITRA-RAY 220×400×360 80 4 - - - -
 

ACCESSORIES

Kit automatic titration

TB 26300 - digestion tube

TB 42300 - digestion tube

TB 80300 - digestion tube

VR 75300 - reaction vessel