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Velp NDA 702 Dumas Nitrogen Analyzer

The NDA 702 is a versatile Dumas Protein/Nitrogen Analyzer, able to perform precise nitrogen analysis and protein determination using either Helium or Argon as the carrier gas. Ideal for markets where Helium is scarce, it offers high throughput and precision. The autosampler has a capacity of 4 discs with 30 positions in each.

Dumas Nitrogen Analyzer - Dual Carrier Gas

Helium has been the carrier gas for elemental analyzers for many years. After years of increasing prices and supply chain interruptions, obtaining Helium has become more and more difficult and expensive, especially in some countries. The desire to replace Helium with a more easily accessible carrier gas has intensified and become reality. This is the reason why we have developed a N/protein analyzer able to use both Helium and its best alternative, Argon, without the need for replacing any part. This is NDA 702.

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 (117 positions)
  • 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
GENERAL FEATURES
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
Interfaces: USB; RS232
Power: 1400 W
Power supply: 230 V / 50 - 60 Hz
Weight: 54 kg / 119 lb
Dimensions (WxHxD): 655x510x410 mm (H 690 mm with autosampler) 25.8x20.1x16.1 in (H 27.0 in with autosampler)

Including

A00000193   40001065   40001504   40001693   10003926  
 
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A00000193Start-up kit (1000 analyses)
 
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40001065Autosampler with disc 1
 
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40001504DUMASoft™ Software
 
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40001693USB cable for PC, 5m
 
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10003926
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