This specification covers environmentally hardened thermometers
which utilizea n elastic element to measure the pressure wai tghaisn filled
closed system (thermal system) and convert this pressure to an analog temperature
indication on a circular dial. Remote reading is accomplished by connecting the analog temperature indicator to the thermometer baul sbp e cbiyf ied length ofcapillary tubing.' The gas actuated thermometer bulb is configured for either direct immersion or insertion into a thermowell.