In one embodiment, a pressure transmitter is provided which diagnoses the condition of a primary element andor an impulse line which connects to a pressure sensor. In the comparison mode, the display controller displays a magnified image of the selected file on a first display area at a size suitable for the number of magnified images displayed on the first display area at that time. A subsequent addressing phase comprises transmission to all the microsystems, by the control circuit, of reset signals and increment signals. The switchover member connects output paths of the MR signals from the plurality of element coils to a receiver, to reception channels in the receiver in response to the imaging conditions. In addition, the present invention provides a method for fabricating the heat sink wherein the electrical-to-optical transmitter disposed within a cavity of the printed circuit board is fabricated. The method includes applying a first degree of braking to the train during a first period of time, and then applying a second degree of braking to the train during a second time period following the first time period so that the train is slowed in a manner effective to limit a peak deceleration rate experienced by the train.