WIKA Intelli Therm TGT73.100, Operating Instructions Manual

Page: 16 / 92

EN
14028755.03 02/2021 EN/DE/FR/ES
16 WIKA operating instructions model TGT73
6. Commissioning, operation
6.1 Use of thermowells
CAUTION!
Damage due to incorrect handling
When using thermowells, please ensure that the stem does
not touch the bottom of the thermowell since, due to the
different expansion coefficients of the materials, the stem
may become buckled at the bottom of the thermowell.
▶
Use the correct insertion length (for the formula for the
calculation of the insertion length, l
1
, see the respective
thermowell data sheet).
6.2 Thermal contact medium
When using thermowells, they must be filled with a thermal contact
medium in order to reduce the heat transfer resistance between the
outer wall of the probe and the inner wall of the thermowell. The working
temperature of the thermal compound is -40 ... +200 °C.
Thermowell
Stem
required safety
clearance