OPSIS - Optical Multiplexer System

An optical multiplexer is used when an OPSIS system has more than one monitoring path. The multiplexer is connected between the monitoring paths and the gas analyser. Measurements are then made in sequence along each monitoring path. There are several models of multiplexers with the capacity to connect different numbers of paths. For DOAS systems the MX004 or MX009 is used. The LD500 laser diode gas analyser uses other types of multiplexers. In all cases, the multiplexer means that a single gas analyser can cover a large area with monitoring paths in different directions. This provides a very cost-effective and area-effective system solution.