Abstract: A transmitter for measuring a process pressure includes a pressure sensor and a temperature sensor providing an input temperature signal. A first remote pressure sensitive diaphragm couples to the transmitter by a first capillary tube filled with a fill fluid having a density as a function of fill fluid temperature. An input circuit is operably connected to at least the pressure sensor and provides an intermediate pressure signal at least roughly representative of the process pressure. A correcting circuit is coupled to the temperature sensor and to the input circuit. The correcting circuit processes the intermediate pressure signal by compensating for the fill fluid density as a function of the temperature and provides a compensated output more closely representative of the process pressure. The correction circuit further performs an initial height determination based upon a pressure measurement made while no pressure is applied to the first diaphragm.

Abstract: A transmitter for measuring a process pressure includes a pressure sensor and a temperature sensor providing an input temperature signal. A first remote pressure sensitive diaphragm couples to the transmitter by a first capillary tube filled with a fill fluid having a density as a function of fill fluid temperature. An input circuit is operably connected to at least the pressure sensor and provides an intermediate pressure signal at least roughly representative of the process pressure. A correcting circuit is coupled to the temperature sensor and to the input circuit. The correcting circuit processes the intermediate pressure signal by compensating for the fill fluid density as a function of the temperature and provides a compensated output more closely representative of the process pressure. The correction circuit further performs an initial height determination based upon a pressure measurement made while no pressure is applied to the first diaphragm.

Abstract: A floor sign device for use on wet, newly waxed, and painted floors to warn and caution pedestrians travelling on the floor of the surface conditions. The device includes first and second panels pivotally coupled together along their top edges. An elongate light tower extends from the top edges of the panels with a light source mounted to the upper end of the light tower. A sound recording and playing device is provided in the light tower. The sound recording and playing device has a microphone and a speaker on the light tower. A motion detecting sensor for detecting motion from a nearby pedestrian is also provided on the light tower. The motion detecting sensor is electrically connected to light source and the sound recording and playing device. The light source is activated to illuminate and the sound recording and playing device is activated to project an audible prerecorded warning when the motion detecting sensor detects motion from a nearby pedestrian.