The installation location often affects the accuracy of the pressure transmitter. Most pressure transmitters will specify a mounting location. Changing the installation orientation will generally cause the zero position of the pressure transmitter to change, but will not affect the accuracy of the full scale measurement. In fact, the mounting orientation of the pressure transmitter does not change during normal use. The location of the pressure transmitter should be considered when the pressure transmitter is calibrated in the workshop and installed in an industrial process, or when the pressure transmitter is removed from an industrial process for recalibration. Of course, if the transmitter is a remote differential pressure type, the installation position of the capillary will have a great influence on the zero value. Again, this isn't something that doesn't change during normal use. Calibration may be affected if the remote differential pressure transmitter is removed from the installation location.