NDA 701 and 702

Fast cost effective Dumas Nitrogen Analysers

The VELP NDA 701 and 702 Dumas Nitrogen Analysers are versatile elemental analysers for Nitrogen and Protein determination according to the Dumas combustion method. Although both are cloud-enabled, the NDA 702 also allows the possibility to choose between Helium and Argon as a carrier gas.

 

 

Fast cost effective Dumas Nitrogen Analysers

Powered by the DUMASoft software, both analysers produce N/Protein results in just 3 to 4 minutes without needing to be supervised. Faster, easier, and safer than a traditional Kjeldahl system, these VELP Dumas Nitrogen Analysers do not require aggressive chemicals, making them the best solution for high throughput labs looking for a safe and fast analyser.

Both analysers are designed to work 24/7, 365 days a year with a minimal and easy maintenance routine. Although supplied with a disc of 30 positions, both the NDA 701 and 702 can be expanded to accommodate up to 117 samples.

The 701 & 702 analyse samples of up to 1 g and overall lowers operating costs thanks to VELP engineering and genuine consumables with extended lifetime.

Very easy to install, both analysers are very compact, meaning that you save valuable lab bench space.

NDA 701

The low LOD limit of detection of 0.003 mgN and the RSD lower than 0.5% (EDTA) possible with the NDA 701 Dumas Nitrogen analyser assures you high precision results and excellent reproducibility.

NDA 702

The lowest LOD in the market of 0.001 mgN with Helium and the RSD lower than 0.5% (EDTA) possible with the NDA 702 Dumas Nitrogen analyser assures you high precision results and excellent reproducibility.

The NDA 702 also allows cost reduction related to Helium availability thanks to the seamless choice of Argon.

Key Features

  • High throughput (both)
  • Dual carrier gas; Helium and Argon. (NDA 702)
  • Disc can be expanded to accommodate up to 117 samples (both)
  • can load different matrix of solid, semi-solid and liquid samples simultaneously (both)
  • Low oxygen consumption (both)
  • VELP TEMS technology drastically reduces waste compared to other methods (both)
  • After-sale support package utilising the ERMES cloud platform and a1 envirosciences service contracts.

Applications/Standards

Protein determination:

  • CEREAL GRAINS AND OILSEEDS AOAC 992.23
  • ANIMAL FEED AOAC 990.03
  • MILK AND MILK PRODUCTS UNI EN ISO 14891, FIL-IDF 18
  • FLOURS, CEREALS GRAINS, OIL SEEDS AND ANIMAL FEEDS AACC 46-30
  • GRAIN AND GRAIN PRODUCTS ICC 167
  • OIL SEEDS AND ANIMAL FEEDING STUFFS ISO 16634-1:2008
  • BEER, WORT, AND BREWING GRAINS AOAC 997.09
  • MEAT AND MEAT PRODUCTS AOAC 992.15

Nitrogen determination:

  • FERTILIZERS AOAC 993.13
  • SOIL ISO 13878:1998
  • RUBBER, LATEX, ELASTOMERS ISO TC 45/SC 2 N2116
  • CELLULOSE
  • VACCINES
  • PLASTICS
  • PAPER

Product Details

 Specifications

NDA701 NDA702
METHOD OF ANALYSIS Dumas method / Combustion Dumas method / Combustion
DETECTOR Autocalibrating TCD (no need for a reference gas) Autocalibrating TCD (no need for a reference gas)
CARRIER GAS Helium Helium or Argon
SAMPLE WEIGHT Up to 1 g Up to 1 g
MEASURING RANGE ppm – 200 mgN ppm – 200 mgN
ANALISIS TIME 3-5 min 3-5 min
AUTOSAMPLER CAPACITY Up to 4 discs, 30 positions each Up to 4 discs, 30 positions each
AUTOSAMPLER TYPE Pneumatic Pneumatic
REPRODUCIBILITY (RSD) < 0.5% for EDTA standards approx. 100 mg (9.57% N) < 0.5% for EDTA standards approx. 100 mg (9.57% N)
RECOVERY > 99.5% > 99.5%
DETECTION LIMIT 0.003 mg N (He) 0.001 mg N (He) or 0.01 mg N (Ar)
COMBUSTION TEMPERATURE 1030 °C / 1886 °F 1030 °C / 1886 °F
HELIUM (He) / ARGON (Ar) Purity 99.999% (grade 5.0) Purity 99.999% (grade 5.0)
OXYGEN (O) Purity 99.999% (grade 5.0) Purity 99.999% (grade 5.0)
CARRIER GAS PRESSURE 2 bar 2 bar
OXYGEN (O) PRESSURE 2 bar 2 bar
CONNECTIVITY Cloud via LAN or Wi-Fi Cloud via LAN or Wi-Fi
INTERFACES USB, RS232, VELP Ermes Cloud Platform USB, RS232, VELP Ermes Cloud Platform
POWER 1400 W 1400 W
POWER SUPPLY 230 V / 50 – 60 Hz 230 V / 50 – 60 Hz
WEIGHT 54 kg / 119 lb 54 kg / 119 lb
DIMENSIONS (WxHxD)

(including autosampler)

655 x 690 x 410 mm / 25.8 x 27.2 x 16.1 in 655 x 690 x 410 mm / 25.8 x 27.2 x 16.1 in

Consultation

Consultation – Do you need further information?
Then please contact us by e-mail or telephone!