The intelligent Positioner SRD991 is designed to operate pneumatic valve actuators and is available in the version
EEx ia / intrinsically safe. The positioner is available with different communication protocols. This includes versions with analog setpoint (4 to 20 mA) without communication and with superimposed HART-signal; digital with fieldbus communication according to PROFIBUS-PA and FOUNDATION Fieldbus H1 based on IEC 1158-2 acc. to the FISCO-Model. The unit can be configured and operated from the Foxboro I/A Series System in connection with our Intelligent Field Device Configurator (IFDC) or the PC-based configuration- and operation tool PC20. The SRD can also be integrated into system environments and applications that support the FDT/DTM concept according to the Specification 1.2.