The measuring system in the gas thermometers consists of the stem, capillary and Bourdon tube in a case. These parts are connected to form a unit. The complete measuring system is filled with an inert gas under pressure.
A temperature change causes the internal pressure in the stem to change. The deflection of the Bourdon tube thus caused is transmitted to the pointer by a movement. A bimetallic element is fitted between the movement and Bourdon tube to compensate for fluctuations of ambient temperature at the case.
GTS Gauges Transmitters Switches supplies Gauges and Instruments for Pressure, Temperature, Switch, Force, Flow, Level, and Speed. We represent Tecsis Industrial Instruments (previously know as VDO), ...