Commissioning, Operation - WIKA TR12 Zusatzinformation

3. Commissioning, operation

3. Commissioning, operation
DANGER!
Danger to life from explosion
EN
By using a measuring insert without a suitable connection head (case), an
explosion risk occurs which can cause fatalities.
▶
DANGER!
Danger to life from missing instrument grounding
With missing or incorrect grounding, there exists a risk of dangerous voltages
(leading to, for example, mechanical damage, electrostatic charge or
induction).
▶
Observe the special conditions (see chapter 4 "Special conditions for use (X conditions)",
point 2).
3.1 Safety-related instructions for the different variants
TR12-M, TC12-M
Module
Thread
Thread
T4: (-50) -40 °C < T
T3: (-50) -40 °C < T
T1: (-50) -40 °C < T
8
Only use the measuring insert in the connection head designed for it.
Ground thermometer!
TR12-B, TC12-B
Variant 1
Thread
< +80 °C
a
< +150 °C
a
< +300 °C
a
WIKA additional information TR12/TC12, intrinsically safe designs (Ex i)
TR12-B, TC12-B
Variant 2
Thread
Legend:
Connection head

Neck tube

Connection to thermowell

TR12-B, TC12-B
Variant 3
T4
T3
T1
Thread
T
undefined
Measuring insert

Terminal block

Transmitter (option)

Field transmitter
