cn802Carbon and nitrogen element analyzer
NDA 702/cn802–Automatic injection
Electric sample injector Standard configuration:1indivual30Position injection plate Maximum injection number: Additional3A sample tray:117A sample NDA 702/cn 802The automatic sampler transfers the sample to the combustion furnace through the following steps: •The purge chamber is filled with carrier gas •Oxygen enters the combustion tube •The effect of gravity through the sample enters the combustion chamber •Overall, the sample falls into the purge chamber, pops up and enters the combustion chamber, and the injection system is closed |  |
Burning furnace
In order to fully burn organic samples, high temperatures are necessary, generally higher than 900℃ NDA/cnBurning furnace: •Maximum temperature: 1100 °C •reliable •Safety •Long service life • Less maintenance |  |
VE LPReaction tube
Reaction tubes are used for combustion and reduction → Two materials: quartz and metal
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Combustion reaction tube
Combustion in an oxygen-rich environment converts organic samples into their elemental compounds: O2, N2, NOx, co2, H2O, co, so3… The combustion reaction tube is prepared or prefilled reaction tube is selected as follows (code A0000158) Combustion reaction |
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Combustion tube –Ash collection
The ash produced by the combustion is collected in a dedicated ash collection tube.
start-up kitThree versions are included to select the best version according to customer needs
Metal ash collection tube
benefit ▪Reusable 5/6 times (600/700 analysis)* ▪Lower cost per sample ▪Excellent high temperature resistance and damage resistance ▪Cleaning kits are used as an accessory for daily maintenance and last longer |   |
High-strength samples-Save life
Sausages, soy sauce, plants and soil, etc. contain salt(halogen)The sample will corrode the metal tube.This is due to the formation ofHClCorroded metal parts.
When using such samples, it is essential to regularly clean pipes and other metal parts, as corrosion can reduce the life of metal consumables.
how to do IT? •Keep sample volume to a minimum •If possible,2The root tube is constantly cleaned alternately |  |
Restore tube
Reducer - vcopperTM The gas passes through a reduction furnace, where: •Nitrogen oxide is reduced to N2 molecules • CO conversion to CO2 :The exclusive Vcopper high-reducing effector provides unique properties in the following aspects: •Life life: up to 750* analysis •Convenience: It frees users from tedious work, and replaces consumables, etc. very fast. Pre-installed reaction tubes (quartz only) are available |  |
H2OSeparation VE LP ND AIt has two water removal units with CN series. WT1 D-Day step •This physical water removal unit is a VELP-exclusive water removal unit located between the combustion furnace and the reduction furnace. •99% moisture is removed at this step •Maintenance-free •Reduce individual sample costs and reduce reducing agent consumption WT2 • Chemical desiccant, easy to obtain co2Separation VE LPElement analyzers use unique trap regeneration technology. Specific absorbents, microporous materials, continuously perform the adsorption and desorption of carbon dioxide to achieve its own regeneration. A/BTwo cavity work alternately cn802Infrared detector VE LPA dedicated (non-dispersive infrared) NDIR detector is able to read the carbon dioxide content and send information to CNSoft. Read only CO2 wavelength: 4.3μm •Selective detector •High accuracy and precision •Read only C content •Maintenance-free •LOD: 0.01 mg C (absolute value) •Maximum C content: 150mg (absolute value) TCD (thermal conductivity detector) detects elemental nitrogen N2.The data is sent to the PC and recorded through software. VELP LoGas TCD delivers excellent performance •NDA 702/CN802 – Lowest N element LOD: •he: 0,001 Buy N •AR: 0,01 Buy N •Low gas consumption, save 50% immediately •Excellent reliability •Extra-long service life | |
TCD (thermal conductivity detector) detects elemental nitrogen N2.The data is sent to the PC and recorded through software. VELP LoGas TCD delivers excellent performance •NDA 702/CN802 – Lowest N element LOD: •he: 0,001 Buy N •AR: 0,01 Buy N •Low gas consumption, save 50% immediately •Excellent reliability •Extra-long service life |  |
•All useful information in one window •Create, save and call databases(.xls,.CSV,.txt, .PDFwait) •Customized test report •Create and manage different calibration curves •Different nitrogen standards can be used •Recalculate and reintegrate functions •The results can be found in different measurement units • Method library is suitable for many types of samples to minimize analysis costs • Automatic leak testing for complete system •Daily control and maintenance •Real-time check of instrument status Repeatability(RSD): <0.5% for EDTA standard (9.57% N) Recovery rate: > 99.5% N Detection limit: 0.001 every n absolute (he) 0.01 Buy N (AR) The required gas Helium(he): purity 99.999% (grade 5.0) Argon(AR): purity 99.999% (grade 5.0) oxygen(O2): purity 99.999% (grade 5.0) | |
NDA 702– Summary
cn softcalibration •many/Single point calibration •CalibrateableCandNparameter • Create and manage different calibration curves • Specify the name function of the calibration curve •Manage different standard curves •Recalculate and reintegrate functions |  |
n softAnalysis results FromIRandTCDSensor data reaches powerfulcn soft, providing state-of-the-art performance: •All useful information in one window •C/NCompared to automatic calculation •Complete pre-installation method library •Create, save and call databases(.XML,.CSV,.txtwait) •Create and export test reports in multiple formats(l IMS, PDF, CSV, txt,…) •Leak Test Management(By region or complete) •Select one or more analyses to allowcn soft TMShow all related peaks. •Click the Carbon or Nitrogen Peak box to open it in full window mode
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Innovation in fully automatic carbon and nitrogen measurementVE LPSolution: •Easy to use:Easy and easy to operate • Rapid analysis:Just3/4Detected in minutesNandC •Multifunctional:UniquecnAnalyzer andheandARWork seamlessly •Meet any sample test quantity requirement:most117Sample •precise:Comply with major international standards •Durable:Decades of design work •reliable:Easy to maintain, throughVE LP er MESEnhanced service support •Cloud platform connection instrument:passVE LP er MESOperator monitoring and controlcn 802, and access its data anytime, anywhere. C/NImportance in Agriculture and Environment soil Elemental analysis provides important information about biological processes and nutrient supply for selective fertilization of agricultural land. The following two are very critical: •The ratio of carbon to nitrogen, that is, the carbon to nitrogen ratio, is used to determine whether the balance of elements in the soil is correct. •Soil organic layer related to crop growth fertilizer Carbon-nitrogen ratio is of great significance to correct land fertilization
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Origin: Italy VELP