What are the concerns when monitoring outdoors?
When installing sensors in outdoor applications, careful attention must be given to prevailing wind conditions. It may be necessary to monitor a single hazard (such as a storage tank) using several sensors so that an accidental leak can be detected regardless of wind direction at the time of the leak. OPEN PATH monitoring systems have been developed to address the issue of large area coverage. When monitoring gases and vapors outdoors, wind and weather become of particular concern. The equipment may be subjected to very hot and very cold temperatures in the course of the year, and may even experience large shifts in temperature from daytime to nighttime. Equipment will be exposed to rain, snow, ice, dust and dirt. For outdoor applications, a rugged, robust instrument and sensor are essential. OPTICAL GAS DETECTION Q. What is gas absorption spectroscopy A molecule’s IR spectrum is constant and dependent on its chemical structure and to a lesser degree temperature and pressure. Each comp
