APPARATUS FOR PREVENTING ELECTRONIC PRESSURE TRANSMITTER FROM BEING FROZEN TO BREAK

摘要

PURPOSE: An apparatus for preventing an electronic pressure transmitter from being frozen to break is provided to prevent damage of a diaphragm by an increase in pressure due to an increase in volume of a measuring fluid by freezing. CONSTITUTION: Cylindrical spool guide casings(35,38) are combined with perforation holes of casing covers(51,52) connected to a side of an amplifier of an electronic pressure transmitter. Spools(45,50) have rear ends inserted into front ends of the spool guide casings through the open front ends of the spool guide casings and have front end surfaces adhered to the perforation holes of the casing covers, elastically opening and shutting the perforation holes.