Reotemp chemical seals use a flexible barrier, or a diaphragm, to isolate a pressure sensor (gage, switch, transmitter, or transducer) from corrosive, abrasive, viscous, and crystallizi ...

If a remote diaphragm seal is employed on a pressure transmitter, the calibration interval should be reduced by a factor of two (i.e., a four-to-six year interval is reduced to two to three years).

Early type of Bell transmitter with membrane diaphragm, invented by Alexander Graham Bell, made by Charles Williams Jr,, Boston, Massachusetts, United States, 1875-1914. This is an exact replica of ...