Processing Magazine

Economical remote mount thermal mass meter for hazardous areas

July 21, 2008

Process and plant engineers who must remote mount an air/gas flow meter transmitter to avoid hazardous areas or difficult-to-reach, equipment-crowded locations will find the new ST50 Remote Mount Flow Meter from Fluid Components International delivers exceptional performance, installation versatility and economy in air, compressed air or nitrogen and a variety of other processes gases, as well as plant HVAC systems. Featuring a highly intelligent, no-moving parts thermal mass flow sensor design, the ST50 Remote Mount meter measures air flow from 1 to 125 SFPS (0.3 to 38 NMPS), nitrogen from 1 to 150 SFPS (0.3 to 46 NMPS) and compressed air from 4 to 400 SFPS (1.2 to 122 NMPS). Accuracy is +1 percent of reading, +0.5 percent of full scale, with repeatability of +0.5 percent of reading. It operates at temperatures from 40 to 100 degrees F. Remote mount fmeters are ideal in equipment crowded or hazardous plant areas where explosive, flammable or toxic gases may be present near the transmitter’s electronics. The ST50’s Remote Mount transmitter, which includes a full digital display, can be mounted up to 50 feet (15 meters) away from its thermal mass flow sensor in the process piping and connected via two 0.50-inch FNPT cables.