11Pressure gauges with output signal, optionally for hazardous areas
11297264.05 07/2019 EN/DE
EN
3. Safety
Dust hazardous areas
Maximum surface temperature Permissible temperature range at the instru-
ment
T85°C -20 ... +45 °C
T100°C -20 ... +60 °C
T135°C -20 ... +60 °C, (+70 °C optional)
The installation should be made in such a way that the temperature range of the instrument,
also considering the eects of convection and thermal radiation, neither exceeds nor falls
below the permissible limits.
The permissible temperature ranges must not be exceeded at the instrument either. If neces-
sary, measures for cooling (e.g. syphon, instrumentation valve) have to be taken.
Compliance with the permissible temperature range during operation must be ensured by
the operator by means of temperature measurement(s) at “T-Ref” within the shown hatched
area(s).
Pressure gauge Dierential pressure gauge
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