The sense amp circuit includes a first node given a first, positive constant voltage larger than a fixed potential before reading, a second node given a second, negative constant voltage smaller than the fixed potential before reading, and a third node to be connected to the first and second nodes on reading. More particularly, the invention pertains to a process for the manufacture of the HFO trans-1234ze by first dehydrofluorinating 1,1,1,3,3-pentafluoropropane to thereby produce a mixture of cis-1,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene and hydrogen fluoride. When the user has not yet determined which vendor or vendors to utilize, a vendor-neutral agent will determine the contents of the server and can then choose between various vendor programs, utilizing weightings according to the strengths and weaknesses of each vendor, as well as user preferences, to determine the best vendor or vendors to select. The method and system also include providing a hard mask layer to be used in defining the sensor at the top of the tunneling magnetoresistive sensor. The platform further has disposed therein a plurality of gears that are operably coupled to drive rods, which operate the lifting members. The heat-meltable fusible link melts in response to ambient heat exceeding a predetermined temperature to establish an open electrical circuit between the electrical conductor and the actuator thereby causing the actuator to move the emergency process control device to a safe position or state.