GAUGE PRESSURE SENSOR HAZARDOUS APPLICATIONS

摘要

Methods and apparatus for sensing a gauge pressure use a pressure gauge pressure sensor (72) that includes a housing (74) and a gauge pressure sensing element (80) having a first pressure inlet (94) and a second pressure inlet (98). The first pressure inlet (94) in associated with an atmospheric pressure. A flame arrestor (84) disposed within the sensor housing (74) fluidly couples the second pressure inlet (98) to an internal portion (71) of an explosion proof device (70).