The VCEM 5000/51000 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 extend the time between maintenance periods and window cleaning (typically 1 year).
|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
|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||RS232/RS485 MODBUS protocol (Optional)|
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