WIKA TR12-A Mode D'emploi page 6

2. Design and function
2.2 Technical description of the three variants
TR12-M, TC12-M
Module
EN
Thread
Thread
2.3 Neck tube versions
fabricated neck tube
(neck tube welded)
parallel
thread
6
TR12-B, TC12-B
Variant 1
Thread
"nipple-union-nipple"
neck tube
tapered parallel
thread thread
TR12-B, TC12-B
Variant 2
Thread
Legend:
Connection head

Neck tube

Connection to thermowell

tapered
thread
tapered
thread
WIKA operating instructions models TR12, TC12
TR12-B, TC12-B
Variant 3
T
max
T
max
T
max
Thread
T = undefined
max
Measuring insert

Terminal block

Transmitter (option)

Field transmitter

parallel thread with
counter nut
Legend:
Neck tube

Thread to the thermowell

Measuring insert

Thread to the connection head

A(U ) Insertion length
2
(tapered thread)
A(L ) Insertion length
1
(parallel thread)
NL Nominal length
N(M ) Neck length
H
= +80 °C
= +150 °C
= +300 °C