(CEMS) continuous emission monitoring system

machine conditionalarmgas

The general approach is based on the principle that adequate internal alarm systems must ensure the reliability and safety of the analysis system and that the instrumentation is not damaged. If even a single component of the system has irregular operation, which may affect its safety or accuracy, the system design ensures that the suction pump is blocked and a contact and a light signal are activated; the “alarms” and the faults of the analyzers are transmitted to the data acquisition on a remote PC. The systems can be designed by providing the possibility to sample the gas multiplexing from different sampling points (up to 4); by means of a PLC, stainless steel solenoid valves are activated. If it is necessary not to condense the combustion product, the solenoid valves are placed in stainless steel boxes heated to 180 °C. It is possible to realize different types of communication systems between the analysis system and the plant supervision: more commonly, by means of a complete analogical hard wired digital wiring or through local networks (LAN) with OPC standard and Modbus TCP. A wide range of complete analysis systems can be designed, produced and put into service. All systems are designed basing on the needs of the individual customer and the features of the plant to be monitored. Sample extraction probes with heated silicon carbide filter or steel filter. Filter cartridges with different degrees of retention are available and versions with electrical protection for ATEX zones 1 and 2. The probes can be supplied (in addition to the standard connection for the heated line) both with the backwash input and the dynamic calibration input.