Stem Thermometer Nitrogen Filled TNS
| Measuring range | -20 ... +40 up to 0 ... 600 °C |
| Connection | back or bottom |
| G1/2... G1, 1/2" NPT...1" NPT, TriClamp, | |
| and so on | |
| Housing Material | aluminum or st. st. |
| Diameter of housing | 63, 80, 100,160 or 250 mm |
| Accuracy class | 1,0 or 1,6 |
| Option | contacts, gliding 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 resultant deflection of the Bourdon tube is transferred to the pointer through a pointer element.