Velp CN 802 Carbon Nitrogen Analyzer

CN 802 Carbon Nitrogen Analyzer

A versatile and cloud enabled elemental analyzer able to perform precise carbon and nitrogen analysis in 4 to 5 minutes. It is the ideal solution for high throughput offering complete safety to operators.

A versatile and cloud enabled elemental analyzer able to perform precise carbon and nitrogen analysis in 4 to 5 minutes. It is the ideal solution for high throughput offering complete safety to operators.

VELP Scientifica

Productive

  • Flash determination of carbon and nitrogen content
  • Determination of Total Carbon TC, Total Organic and Inorganic Carbon (after acidification) TOC , TIC, Total Nitrogen TN and Carbon/Nitrogen Ratio
  • Automated analysis of preloaded samples (117 positions)
  • Totally unsupervised operation
  • Results produced 24/7/365

The CN 802 is a safe analyzer that does not require aggressive chemicals or time-consuming analysis steps. Just prepare your sample and walk away!

Precise

  • NDIR Detector (Non Dispersive Infrared) to detect Carbon concentration
  • LoGas™ TCD with no reference gas required, for Nitrogen content
  • Unmatched LOD: Carbon 0.01 mgC, Nitrogen 0.001 mg N (using He) or 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

Versatile

  • Operates with Argon and Helium as carrier gas without any hardware modification
  • Preinstalled methods with element selection (C,N and C/N)
  • Controllable from PC by the powerful CNsoft™ software
  • Clear and detailed reporting software
  • Data storable in multiple formats for LIMS or PC

With the CN 802 you can load different matrix of solid, semi-solid and liquid samples at the same time.

Carbon detection from ppm – 150 mgC, the lowest Nitrogen LOD in the market of  0.001 mgN with Helium and the RSD lower than 0.5% (EDTA) assure you high precision results and excellent reproducibility.

VELP CN 802 elemental analyzer is designed to work 24/7, 365 days a year with fast and easy routine maintenance.

The autosampler is supplied with a disc of 30 positions and can be expanded to accommodate up to 117 samples.

Economical

  • Exceptionally low cost per analysis
  • Premium quality consumables
  • Low energy consumption with Stand-by and Sleeping mode
  • Lowest operator costs
  • CN 802 analyzes samples of up to 1 g and reduces operating costs thanks to VELP engineering and genuine consumables with extended lifetime. Furthermore, CN 802 allows cost reduction related to Helium availability thanks to the seamless choice of Argon.
    • The selective Non-Dispersive Infrared NDIR detector is maintenance-free and reads only Carbon content;
    • The CN 802 LoGasTM TCD works with no reference gas ensuring accuracy and precision;
    • Very low oxygen consumption thanks to optimized combustion;
    • The maintenance-free DriStepTM water trap is a physical trap that removes 99% of water, reducing the cost of chemicals;
    • CN 802 is easy to install and extremely compact saving valuable bench space in your lab

    VELP TEMS technology drastically reduces wastes compared to wet chemistry N/protein determination methods.

Environmentally Friendly

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

Cloud-Enabled Instrument

  • Real time monitoring and notification via VELP Ermes Cloud Platform
  • Effortlessly connect your CN 802 to the cloud in complete safety
  • Immediate Software Updates (OTA)
  • Access to your data via PC, smartphone and tablet
  • Create and share reports, track trend and get useful insights
    *Saving Time, Energy, Money & Space

Video

VELP CN 802 Carbon Nitrogen Elemental Analyzer
The VELP Scientifica CN 802 is the accurate and precise combustion analyzer for simultaneous Carbon and Nitrogen determination in diverse organic matrices in just a few minutes. The CN 802 is a robust and flexible combustion analyzer that works in accordance with official reference methods for the determination on Carbon and nitrogen in many industrial sectors such as: agriculture, environmental, food & feed and chemical.

Product Code

Description Power Supply Code
CN 802 230 V / 50-60 Hz F30800090

Including

The CN 802 Dumas Analyzer is supplied with all necessary parts to perform up to 1000* analyses (inclusive of catalysts, copper, quartz wool, reagents and seals).

  • A00000193 Start-up kit
  • 40001065 Autosampler with disc 1
  • 40002622 CNSoftTM Software
  • 40001693 USB cable for PC, 5m
  • 10003926 RS232 Cable for balance

In addition, it contains chemicals and small consumables spare for maintenance.

A00000193 40001065 40002622 40001693 10003926
check
A00000193Start-up kit (1000 analyses)
check
40001065Autosampler with disc 1
check
40002622CNSoft™ Software
check
40001693USB cable for PC, 5m
check
10003926RS232 cable for balance

Accessories

A00000194 A00000270 A00000271 TA00000378 A00000199
    
A000001941000 analyses kit
    
A000002702000 analyses kit
    
A000002714000 analyses kit
    
TA00000378Kit for TOC/sample preparation
    
A00000199Disc 2 for autosampler
A00000200 A00000201 A00000317 A00000154 A00000240
    
A00000200Disc 3 for autosampler
    
A00000201Disc 4 for autosampler
    
A00000317Super-Absorbent Powder, 10g
    
A00000154Quartz wool, 50 g
    
A00000240Vcopper™ High Reduction Efficiency, 470 g
A00000157 A00000320 A00000149 A00000153 A00000260
    
A00000157Copper oxide, 50g
    
A00000320Velpcatalyst with inert layer, 36g
    
A00000149EDTA, 100 g
    
A00000153Tin Foil Cups 36x36mm, 150pcs
    
A00000260Tin foils 50x50mm, 450 pcs
A00000371 A00000262 A00000217 A00000162 A00000321
    
A00000371Silver foil 35×35 mm, 100 pcs
    
A00000262Mold for tin foils 50x50mm
    
A00000217Tin foil cup closing device
    
A00000162Quartz reactor tube
    
A00000321Metallic reactor tube
A00000158 A00000226 A00000161 A00000198 A00000322
    
A00000158Pre-Packed Combustion Reactor
    
A00000226Pre-Packed Reduction Reactor
    
A00000161Quartz ash insert
    
A00000198Ceramic ash insert
    
A00000322Metallic ash collector
A00000353 A00000225 A00000235 A00000236 E00010012
    
A00000353Cleaning kit for metallic ash collector
    
A00000225Anhydrone, 454g
    
A00000235Rice flour, 30g
    
A00000236High temperature sealing grease
    
E00010012VELP Ermes 1 Year Connection
E00010036 A00000370
    
E00010036VELP Ermes 3 Years Connection
    
A00000370IQ/OQ/PQ CN Manual

 

GENERAL FEATURES
Method of analysis: Cabon/Nitrogen determination according to combustion method
Duration of analysis: 4/5 minutes
Detector: N= TCD (Thermal Conductivity Detector)
C= NDIR Detector (Non Dispersive Infrared)
Sample weight: Up to 1g
Autosampler capacity: up to 4 discs, 30 positions each (up to 117 samples)
Reproducibility (RSD): < 0.5% for EDTA standards approx. 100 mg
Recovery: > 99.5%
Detection Range C: ppm – 150 mgC
Detection Range N: ppm – 200 mgN
Carrier gas: Helium or Argon
Nitrogen Detection limit (Absolute values): 0.001 mg N, with Helium
0.01 mg N, with Argon
Carbon Detection limit (Absolute values): 0.01 mgC
Combustion temperature: 1030 °C / 1886°F
Carrier gas (He/Ar): purity 99.999% (grade 5.0)
Oxygen (O2): purity 99.999% (grade 5.0)
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 / 119 lb
Dimensions (WxHxD): 655x510x410 mm (H 690 mm with autosampler)
25.8×20.1×16.1 in (H 27.0 in with autosampler)

 

Full Automation and Convenience

​

VELP Scientifica CN 802 produces results of both elements in 2 to 5 minutes per sample, being a fast and accurate Carbon/Nitrogen Analyzer designed for full automatic process.

With the best nitrogen limit of detection on the market and an RSD lower than 0.5% for EDTA, the user is assured of high precision results.

CN 802, the ideal solution for high throughput, being fully automated and able to run 24/7.

Dedicated Detectors for Carbon and Nitrogen

The sample is purged with carrier and drops down into the combustion reactor where it is converted in its elemental compounds at a high temperature (>1000°C).

Water separation is performed in 2 steps. The first is the maintenance-free physical trap DriStep™ (WT1) strategically placed after combustion. The second is a chemical trap (WT2), ensuring the complete elimination of residual 1% of water.

The combination of high temperature and the exclusive VcopperTM reduces nitrogen dioxide to molecular nitrogen inside the reduction furnace.

The VELP NDIR detector precisely detects Carbon concentration with an excellent limit of detection.

The auto-regenerative CO2 absorbers trap carbon dioxide in order for the exclusive TCD (Thermal Conductivity Detector) to detect the Nitrogen content.

The CN combustion method starts with a combustion in the combustion furnace (CF) to burn the sample obtaining elemental compounds. Water is removed by the Velp unique first physical trap (DriStep™) and the elemental substances pass through the reduction furnace (RF). The innovative NDIR – Non Dispersive Infrared Detctor accurately detects the Carbon concentration and sends the information to the software. The flow then passes through the auto-regenerative CO2 absorbers (CO2) only permitting Nitrogen to be detected by the LoGas™ Thermal Conductivity Detector (TCD), therefore not requiring a reference gas.

Selective Carbon Detection with NDIR technology

VELP exclusive (Non Dispersive Infrared) NDIR Detector detects the Carbon content and sends the information to the CNSoftTM.

  • Selective detector
  • High Accuracy and Precision
  • Reads only C content
  • Maintenance free
  • LOD: 0,01 mg C (absolute)
  • Detection range: from ppm to 100% of Carbon

Accurate and precice Carbon/Nitrogen Determination

Discover the reliability of the CN 802, as shown by the very low detection limit for both elements (0.01 mgC and 0.001 mg N) and the good RSD% (<0.5% with EDTA standard). The unit can process up to 1 gram of samples, but also with small quantities (around 200 mg) CN 802 gives optimum results with minimum consumption. No need for higher quantities as the results will be the same.

Dual carrier gas Analyzer

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 Carbon/Nitrogen analyzer able to use both Helium and its best alternative, Argon, without the need for replacing any part.

Reliable Autosampler

The CN autosampler provides high-quality performance, both for the sample loading and the sample conditioning, where the sample is stored into a dedicated room and purged with Helium/Argon in order to eliminate any trace of nitrogen present in the atmosphere before starting the analysis.
It can stand up to 4 discs of 30 positions each simultaneously for an enhanced productivity.
The same autosampler is suitable for samples of any matrix (liquid, solid and semi-solid) up to 1 gram.

Intuitive interactions with CNSoft™

The CNSoft™ software is the powerful VELP solution that controls and operates the CN 802 analyzer.

The CNSoft™ comes with a user-friendly interface that displays all relevant information at a glance: results, database and instrument conditions.

It is possible to choose from a rich library of pre-installed methods and create customized ones. An easy calibration curve creation for Carbon and Nitrogen allows for testing of any sample matrix with no memory effect.

Run the complete Leak Test and choose whether to run it on the whole circuit or targeted by zone, after replacing a consumable for example.

Monitor Your Instrument Anytime, Anywhere with VELP Ermes

​

CN 802 thanks to its connectivity to VELP Ermes allows you to reduce routine operations thanks to the real-time monitoring of your elemental analyzer wherever you are, at any time.

CN 802 is designed for continuous work with fully automated processes, VELP Ermes allows you to manage multiple instruments, consumables, workflows and to drastically reduce diagnostic time to ensure a superior level of service with maximum data security and protection of your data.

Immediate notifications and alerts will allow you to be always informed about the status of your analysis and thanks to the remote interruption you will have total control of your processes ensuring maximum security.

Access the database of your instrument in total security through the VELP Ermes platform and work with your colleagues creating and sharing reports from PC, smartphone and tablet.

Premium Quality Consumables and Accessories

CN 802 is equipped with numerous accessories designed to simplify the operation.

A specific device simplifies the sample preparation for liquids; spatulas and syringes ensure correct transfer of the sample into the capsules.

In addition, VELP Scientifica produces also the main consumables, ensuring premium performance, as both the analyzer and the consumables come from the same source.

 

Brochure & Leaflet

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.

How to connect to VELP Ermes
Improve your laboratory experience with secure VELP Ermes Cloud Platform and access to your VELP instruments working conditions and data anytime and anywhere
CN 802  Caron Nitrigen Analysis BROCHURE
Learn more about our CN 802 Carbon / Nitrogen Analyzer, able to perform precise carbon/nitrogen determination in accordance to international standards.
NDA 702 Dual Carrier Gas Dumas Nitrogen Analyzer Leaflet
Learn more about our Dual Carrier Gas Dumas Protein/Nitrogen Analyzer, able to perform precise nitrogen analysis and protein determination in a flash with …
NDA Consumables Leaflet
Learn more about our wide range of superior quality consumables for the day-to-day operation of your NDA 701 & NDA 702.
Learn more about the Dumas principle, first described by Jean-Baptiste Dumas over a century and a half ago (1831).

Application notes

Choose among a comprehensive library of Application Notes / White Papers and learn more on how to optimize the performance of your VELP instruments. These documents offer typical analyses of well-known samples, together with official references and suggestions, to make you an expert!

How to determine total Carbon, Nitrogen and TOC in soils and sediment samples
How to perform NPN and NCN determination in milk using the Dumas combustion method
The C:N ratio is important because it has a direct impact on residue decomposition and also nitrogen cycling in soils. The performance of the VELP CN 802 w…
cn 802 tc and toc determination in sludge
Sewage sludge generated from wastewater treatment plants are being merited greater attention in light of their potential for improving soil properties and …
Monitoring of the protein content during the brewing process is important to ensure the survival, growth, and productivity of the yeast used to convert sugars to ethanol and carbon dioxide.
Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
Learn how to determine nitrogen in solis. The nitrogen in plants is a part of numerous compounds, including proteins, enzymes, nucleic acids, chlorophyll and vitamins essential for all biological functions.
n protein determination in feed dumas combustion method
Protein is a critical nutrient in cattle, pigs, poultry, sheep, horses and pet food diets. The protein requirements of cattle vary with age, size, and expected performance. Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
The monitoring of the protein content during the brewing process is important to ensure the survival, growth, and productivity of yeast. Moreover, the protein content is an important criteria in evaluating the quality of beer: water-soluble barley proteins play a major role in the formation, stability, and texture of head foams. Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
It is always more important to know the ingredients and amount of all the components, as proteins, for different reasons, including legal and nutritional purposes (labeling). Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
Milk powder is an excellent sources of protein and calcium, with a very long shelf life. It does not need to be refrigerated, due to its low moisture content. Learn how to obtain excellent performance with NDA Series and how to work in accordance with ISO.
Nuts are an excellent source of protein and healthy fats,  the amounts vary depending on the type of nut. Discover how to determine the N quantity in Nuts with Dumas Combustion method.
n protein determination in oat meal dumas method nprotein-determination-in-oat-meal-dumas-method-201166
The oat (Avena sativa), sometimes called the common oat, is a species of cereal grain grown for its seed, which is known by the same name (usually in the plural, unlike other cereals and pseudocereals). While oats are suitable for human consumption as oatmeal and rolled oats, one of the most common uses is as livestock feed.
n protein determination in pasta dumas combustion method nda 702 
The amount of protein in pasta depends on the type of flour used to manufacture it: for instance, if it is made from durum wheat, the pasta contains protein and gluten.
Learn how to obtain excellent performance with NDA 702 and how to work in accordance with AOAC, AACC and ICC.
n protein determination in plants dumas combustion method
Nitrogen is the most important nutritional element for plants, since it is involved in building of their proteins, nucleic acids and other several cell components. Learn how to obtain excellent performance with NDA Seriesand how to work in accordance with AOAC, AACC and ICC.
N/Protein Determination in Probiotic Drinks – Dumas/Combustion method (NDA 702)  
A probiotic is a live microbial food ingredient that beneficially affects the host through its effects in the intestinal tract. They are widely used to prepare fermented dairy products. Learn how to obtain excellent performance with NDA 702 and how to work in accordance with ISO.
N/Protein Determination in Pumpkin Seed – Dumas/Combustion method NDA 702  
Pumpkin seeds are nutrient-rich, with especially high content of protein, dietary fiber and numerous micronutrients. The seeds have long been valued as a source of the mineral zinc, and the World Health Organization recommends their consumption as a good way of obtaining this nutrient.
nprotein determination in sausage dumas combustion method   
Learn how to determine the protein content in mortadella sausage. Quality control of Mortadella encloses the check of chemical parameters, among these, the protein content. The mortadella proteins are of high biological value.
N/Protein Determination in Soybean – Dumas method 
Soybean meal is the most important protein source used to feed farm animals. It represents two-thirds of the total world output of protein feedstuffs. Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
N/Protein Determination in Starch – Dumas / Combustion method  
The protein content in starch is an important parameter for the refining process, but also from a healthy point of view for people who has allergies and intolerance. Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
N/Protein Determination in Yogurt – Dumas / Combustion method  
The fermentation in yogurt determines the formation of particular compounds responsible the sensory profile of the product: for this reason, it becomes important to know the amount of key nutrients of milk and of the finished product, such as proteins.
Learn how to obtain excellent performance with NDA Series and how to work in accordance with ISO.
Nitrogen Determination in Cellulose Nitrate – Dumas/Combustion method  
The determination of nitrogen content in cellulose nitrate is important to distinguish high nitrogen content substances, which are used as explosive, from the ones containing a medium or low amount of nitrogen, ideal for the preparation of jellies explosive and smokeless powders. Learn how to obtain excellent performance with NDA Series and how to work in accordance with STANAG.
nitrogen determination in rice flour dumas combustion method nda 702   
Rice flour Certified Reference Material (CRM), traceable to NIST standard (SRM), is used to evaluate the reliability of the analytical method for the nitrogen and protein determination by using helium and argon as carrier gas with NDA 702, in accordance with AOAC.
Nitrogen Determination in Soil – Dumas / Combustion method 
Nitrogen fertilization is one of the most important factors of agricultural production. The quantity of nitrogen in the soil must be kept under control to prevent an excessive use.
Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC and ISO.
Nitrogen Determination in Tire Rubber – Dumas / Combustion method   
For tire manufacturers, it is important to know the nitrogen content present in the constituent mixture, since a high amount of nitrogen adversely affects the performance of the tire, increasing the incidence of premature failure. Learn how to obtain excellent performance with NDA Series and how to work in accordance with ISO.
nitrogen determination in sport powder dumas combustion method   
Different sport powder products were chosen to demonstrate the suitability of the DUMAS method for Nitrogen/ Protein analysis by using Helium and Argon as carrier gas. Download the Apllication Note.

Certifications

Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.

CE Declaration of Conformity VELP Scientifica Nitrogen Analyzers
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the Eur…