WIKA TG53 Instructions Complémentaires page 9

3. Special conditions for use (X conditions)
3. Special conditions for use (X conditions)
1) Design temperatures
Permissible ambient temperature at case
Window
Instrument glass
Laminated safety glass,
polycarbonate window
Permissible medium temperature
max. 600 °C
(instruments with liquid filling: max. to end of scale)
Observe the surface temperature for ATEX application:
The permissible medium temperature does not only depend on
the instrument design, but also on the ignition temperature of the
surrounding gases, vapours or dust. Take both aspects into account.
2) Maximum surface temperature
The surface temperature mainly depends on the medium and
ambient temperature. The instrument itself does not contain any
heating sources. For prevention, consider the maximum medium
temperature as maximum surface temperature, if it is not possible to
determine the real surface temperature even in the case of expected
malfunctions.
WIKA additional information models TG53, TG54 (ATEX)
Unfilled Filled
instrument instrument
0 ... 100 °C -40 ... +70 °C
0 ... 70 °C -40 ... +70 °C
EN
Option: low
temperature
-50 ... +70 °C
-50 ... +70 °C
9