WIKA TR12-M - Handbuch (Seite 17)

GB
6. Commissioning, operation
11419904.02 09/2013 GB/D
WIKA operating instructions models TR12, TC12 (Ex d) 17
6. Commissioning, operation
6.1 Removal and installation of the measuring insert
During the replacement of the measuring insert, the surfaces of the flameproof joint must
not be damaged. Scratches, grooves, dents, bumps etc. are not permissible. The joint
lengths and the joint widths of the flameproof joint must not be changed.
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: