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Flue gas opacity monitor
G1100 Green Instruments A/S

The G1100 Opacity Monitor is almost identical with the G1000 Smoke Density Monitor, but it is designed to monitor acid mist in chemical processes. Compared to the G1000 Smoke Density Monitor it is equipped with special PTFE-heads that are designed to resist acid mist. Furthermore, it has a special isolated and heated cabinet that provides extra protection.

The G1100 Opacity Monitor is installed with the two PTFE-heads directly opposite each other. The standard length of the fiber optic cables is 4.5 m. It is possible to attach longer cables that are available in 6.0 m or 7.5 m. Purge air is used to keep the soot in the funnel away from the lenses. The signal output is two configurable alarm relays and 4...20 mA.