AUTO-purge III

Air Monitor’s AUTO-purge III is designed for applications where the continuous exposure to airborne particulate might impair the measurement accuracy of our Combustion Air Station (CA Station) or our VOLU-probe/SS array. When activated by one of our “smart” flow transmitters or a distributed control system, a combination of valves are operated to introduce high pressure, high volume air into the flow measurement device’s sensing ports for a short duration while simultaneously isolating the transmitter from over-pressurization. This periodic purging assists in maintaining the sensing ports of the total and static pressure manifolds in a clear unobstructed condition.