Measuring stem (without thermowell): - Sensor end tightly sealed - starting from 300°C: measuring stem always made of CrNi steel 1.4571 - d=8mm, if installation length T > 500 mm - Measuring stem made of CrNi steel 1.4571, always with smooth spigot - Measuring stem for Fig. 21, always with plain spigot - Minimum immersion depth: 40mm
Thermowell (with matching measuring stem): - Set screw: M3 for brass thermowells; M4 for CrNi steel thermowells - Measuring medium resistance acc. to material properties - Silver solder, hard soldered