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
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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