Overview
The VCEM 5000/5100 represents the latest generation of CODEL’s unique flow monitors. These systems measure the velocity of stack gases using a highly accurate time of flight measurement that is derived from a cross correlation analysis of the infra-red emissions of the turbulent gas.
Two robust infrared detectors are used for the prime sensing, mounted on the stack or duct typically 1m apart in the direction of flow. High efficiency air curtains are fitted to considerably exten the time between maintenance and periods and window cleaning (typically 1 year).
Features & Benefits
- Non-contact infra-red sensing.
- Continuous measurement.
- Suitable for hot and dirty gases.
- No limit on upper gas temperature.
- No moving components.
- High availability, low maintenance requirement.
Certified Product
The VCEM 5100 has both TUV and MCERT certification which signifies the accuracy and reliability of its measuring capabilities.
Product Specification
| Operating Principle | Infrared correlation |
| Measuring Units | m/s, m3/s |
| Ambient Temperature | -20°C to +50°C |
| Power Supply | 48V DC from Signal Processor Unit (SPU) |
| Construction | epoxy-coated aluminium to IP67 |
| Analogue Outputs | 2 x 4-20mA current outputs as standard, isolated, 500Ω load max, fully configurable from keypad |
| Logic Outputs | 2 x volt-free SPCO contacts, 50V, 1A max, configurable as alarm contacts 1 x volt-free SPCO contact, 50V, 1A max, for data valid signal |
| Serial Data | RS485 MODBUS protocol (Optional) |
Certification
Brochure Download
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Worldwide Support
Over 25 distributors and support centres worldwide
Flexible maintenance contracts
Tailor made plant specific contracts with 24Hr Support
30 years experience
Developing, manufacturing and installing
Why Measure Flue Gas Velocity?
Many industrial processes release flue gases to the atmosphere. Under European Directives the majority of those are classed as emission sources and therefore require continuous emission monitoring.
European standards for monitoring pollutants and flow for CEMS (Continuous Emission Monitoring Systems) are already in place and other countries usually follow them to some extent.
The CODEL VCEM5100 was one of the very first volumetric flow meters that received the TUV QAL 1 Certificate. Consequently, CODEL’s flow sensors are successfully used in a number of CEMS in Europe and other parts of the world in order to monitor mass flow emissions.
Flow sensors for emission monitoring systems must meet certain certification standard, however, the application itself is not very challenging, as it is taking place on clean gas, that has passed all the abatement stages at relatively low temperatures.
Process measurement, however, can be much more demanding, where high dust load levels and/or corrosive gases are present.
The infrared correlation technique employed in the VCEM5100 to measure time of flight, gives a truly non-contact measuring technique. This combined with zero moving parts means the VCEM5100 is essentially maintenance free.
Thanks to the non-contact measuring principle the VCEM5100 can operate in the harshest of conditions, including very high dust loaded gas, and flue gas temperatures in excess of 1000 °C. Likely examples of such conditions would be flow measurement of raw gas, SCR inlet/outlet, FGD inlet, turbulent flow directly of diesel engine or electric arc furnace where other technologies would find it difficult to work for long periods of time in these conditions.
Click here to find out more about CODEL’s VCEM5100
Ask a question
For further information on any of our products, please complete our enquiry form and a member of staff will respond as soon as possible.
You can also call: +44(0)1629 814351
