Air flow sensors without amplifier for explosive areas
EGE flow sensors for gaseous media in explosive areas permit the space-saving flow measurement on site and the comfortable setting of the limit value using separate amplifier installed outside of the Ex area. The measurement takes place without mechanically moving parts using a thermal measuring element. The current flow state is displayed at the amplifier using LEDs. The devices are used wherever a safe, robust and low-maintenance monitoring of flow values is required. The sensors of the product series ST 212 and STS 215 have an ATEX approval and may be used in Gas-Ex as well as Dust-Ex areas requiring equipment protection level EPL Ga, EPL Ga/Gb or EPL Da.