Capillary Thermometer Nitrogen Filled TNF
| Measuring range | -20 ... +40 up to 0... 600 °C |
| Connection | back or bottom |
| G1/2... G1, 1/2" NPT...1" NPT, TriClamp, | |
| aso. | |
| Housing Material | aluminum or st. st. |
| Diameter of housing | 63, 80, 100,160 or 250 mm |
| Accuracy class | 1,0 or 1,6 |
| cCpillary connection | up to 100 m |
| Option | contacts, Max. pointer, oil filling |
The measuring system of the gas pressure thermometer comprises probe, capillary tube and Bourdon tube in a casing. These parts form a unit. The complete measuring system is filled with pressurized nitrogen. A change in temperature causes a change in inner pressure in the immersion shaft. The resulting deflection of the Bourdon tube is transferred to the pointer through a pointer element. Display and probe are connected by a capillary tube separated by a distance up to 100 m.