6 Mounting
16
6.5 Pressure connection
Seals Seals to EN 837 or DIN 16 258 may be used.
Tightening
torque
200 Nm max.
The correct tightening torque depends on the size, material and shape of the
seal that is used, as well as on the pressure connection of the pressure trans-
mitter.
Check for
tightness
After establishing the pressure connection, it must be checked for tightness.
6.6 Use inside the Ex area
.
Note the sequence when opening or closing the valves!
➩
"Measuring the absolute pressure", page 26ff
or
➩
"Measuring the gauge pressure", page 29ff.
Seals
With intrinsically safe protection EEx ia IIC, when used in Zone 0
with process connection 504, a flat metal gasket ring, e.g. to
EN 837 or DIN 16 258, must be used
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