EN
14347811.01 07/2019 EN/DE
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WIKA operating instructions model TGT73 (Ex)
2. Design and function
2.1 Overview
Case
Dial
Pointer
Stem
Electrical connection with cable box
2.2 Description
The gas-actuated thermometer consists of a stem, capillary, Bourdon
tube and transmitter in the case. These parts are combined to form a
single unit. The entire measuring system is filled with an inert gas under
pressure.
Any change in temperature causes a change in internal pressure in the
stem, and thus a change in the shape of the pressure element.
2. Design and function