WIKA TR Serie Manual De Instrucciones página 10

4. Design and function
Certain thermometer versions can be combined with a large number of thermowell designs.
Operation of these thermometers without a thermowell is only appropriate in special cases.
4.2 Removal and installation of the measuring insert, models TR12-B, TC12-B
GB
Before removing the measuring insert, fully disconnect the electrical
connections to the terminal block or transmitter.
After that, the neck tube can be loosened and unscrewed from the head.
Removed measuring insert with neck tube:
To disconnect the measuring insert
from the neck tube, loosen the M16
screw at the top end of the neck tube
10
WIKA operating instructions resistance thermometers, thermocouples