The OPSIS air quality monitoring system consists of an open optical path consisting of a transmitter and a receiver. Light is generated by the xenon lamp inside the emitter and reflected by the focusing mirror inside the emitter to the receiver. The light received by the receiver is transmitted to the analyzer through a fiber optic cable.
ER 110 and ER 150 are fixed optical paths. The transmitter is a PS 150 power supply unit using OPSIS and needs to be connected to the main transmission line. The monitoring light path of ER 110 reaches 500 meters, and the monitoring light path of ER 150 reaches 1000 meters.
A set of OPSIS can connect multiple independent optical paths composed of ER 110/ER 150. In a multi monitoring channel system, it is necessary to switch the optical signals separately into the analyzer through a multiplexer.