• DECS Dioxin Emission Continuous Sampling

Air Monitoring

DECS Dioxin Emission Continuous Sampling

Mar 31 2008

The Norms concerning the dioxin emission sampling establish a 8 hours sampling, which usually requires delicate and complicated equipment, a highly qualified staff and long preparation time. Often long intervals between two samplings do not provide representative and significant data. For this reason TCR Tecora, which manufactures instruments dedicated to stack emission and environmental monitoring since 1974, designed and produced DECS.
DECS (Dioxin Emission Continuous Sampling) is a new emission sampling system which is permanently installed on the stack for the determination of dioxin, furans (PCDD/PCDF) and other POP’s in the long term.
According to EN 1948 and USEPA 23, DECS adopts the filter condenser solution with adsorbing trap on humid gas method. DECS is composed by 2 units: the sampling unit and the control unit.
The sampling unit is mounted on the stack’s sampling point: its aim is the collection of the sample in two phases (particulate and gas) without modifying the composition. The sampling unit can be mounted outdoors and it can get started anytime with no need of long preparation time. The control unit is the user’s interface: it controls all system’s functions and it is usually located in a safe and easily accessible area. Built in an industrial cabinet, it’s connected to the sampling unit through pneumatic and electrical connections.
Available interfaces are a 10” LCD graphic monitor, a keyboard, a printer, a compact flash and a Internet/Ethernet connection.
Once the measurement is terminated a summary report is produced, in order to calculate the concentration and evaluation of the measurement quality; a continuous record of the main parameters and anomalous situations it is also available.

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