NDA 702 Dual Carrier Gas Dumas Nitrogen Analyzer

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A versatile and cloud enabled Dumas Protein/Nitrogen Analyzer, able to perform precise nitrogen analysis and protein determination using either Helium or Argon as carrier gas. Ideal for markets where Helium is scarce, it offers high throughput and precision.


Exceptional Versatility

  • Can operate with Argon or Helium as carrier gas
  • Preinstalled methods selectable in an instant
  • Controllable from PC with DUMAsoft™ software
  • Powerful, clear and detailed reporting software
  • Data storable in multiple formats for LIMS or PC


High Productivity

  • Flash determination of nitrogen & protein content
  • Automated analysis of preloaded samples
  • Totally unsupervised operation
  • Results produced 24/7/365


High Performance

  • Unmatched LOD (0.001 mg N (using He) - 0.01 mg N (using Ar))
  • RSD less than 0.5% with EDTA standard
  • Conforms to Good Laboratory Practice standard
  • Leak tests (zone or total) ensure optimum performance


Economical Operation

  • LoGas™ TCD with no reference gas required
  • Exceptionally low cost per analysis
  • Premium quality consumables
  • Low energy consumption
  • Lowest operator costs


Environmentally Friendly

  • Minimum possible waste & residues
  • Optimized life of consumables
  • Incorporates TEMS™ technology*


Cloud-Enabled Instrument

  • Effortlessly connect your instrument to the cloud in complete safety
  • Real time monitoring and notification via VELP Ermes Cloud Platform
  • Immediate Software Updates (OTA)
  • Access to your data via PC, smartphone and tablet
  • Create and share reports, track trend and get useful insights


Technical Data



Method of analysis Nitrogen determination according to Dumas method (combustion)
Duration of analysis: 3/4 minutes
Detector Innovative TCD autocalibrating
Sample weight: max 1g
Autosampler capacity: up to 4 discs, 30 positions each
Reproducibility (RSD): 0.5% for EDTA standards (9.57%N)
Recovery > 99.5%
Carrier gas Helium or Argon
Detection limit 0.001 mg N, with Helium
0.01 mg N, with Argon
Carrier gas (He/Ar): purity 99.999% (grade 5.0)
Oxygen (O2): purity 99.999% (grade 5.0)
Compressed air or Nitrogen (N2): purity 99.6 % (oil and water free)
Carrier gas (He/Ar) pressure: 2 bar
Oxygen (O2) pressure: 2 bar
Connectivity Cloud via LAN or Wi-Fi
Interfaces USB; RS232
Power 1400 W
Power supply: 230 V / 50 - 60 Hz
Weight 54 kg
Dimensions (WxHxD) 655x510x410 mm (H 690 mm with autosampler)