Design and function, 2 technical description of the three variants, 3 neck tube version – WIKA TR12-M Benutzerhandbuch
Seite 13

GB
14064370.01 08/2013 GB/D
WIKA operating instructions models TR12, TC12
13
Legend:
Neck tube
Thread to the thermowell
Measuring insert
Thread to the connection head
A(U
2
) Insertion length
(tapered thread)
A(L
1
) Insertion length
(parallel thread)
NL
Nominal length
N(M
H
)
Neck length
tapered
thread
parallel
Thread
14013854.02
parallel
Thread
tapered
thread
fabricated neck tube
(neck tube welded)
“nipple-union-nipple”
neck tube
tapered
thread
parallel thread with
counter nut
4.2 Technical description of the three variants
TR12-B, TC12-B
Variant 1
TR12-B, TC12-B
Variant 2
TR12-B, TC12-B
Variant 3
Thread
TR12-M, TC12-M
Module
Thread
Thread
Thread
Thread
Legend:
Connection head
Neck tube
Connection to thermowell
Measuring insert
Terminal block
Transmitter (option)
Field transmitters
14039769.01
4.3 Neck tube version
4. Design and function
T
max
= +85 °C
T
max
= +150 °C
T
max
= +300 °C
T
max
= undefined