7-2
EB 8317 EN
Operation
not exceed the upper bench range value by
more than 3 bar:
Rated signal
range
Fail-safe ac-
tion
Max. sup-
ply pres-
sure
0.4 to 1.4 bar
Actuator stem
retracts
4.4 bar
1.4 to 2.3 bar
5.3 bar
1.5 to 2.1 bar
5.1 bar
Actuator stem extends (FA)
With direction of action "actuator stem ex-
tends", the supply pressure must not exceed
the upper bench range value by more than
1.5 bar.
7.3 Additional notes con-
cerning operation
Î
Label actuator with reduced supply pres-
sure with a sticker ("Max. supply pres-
sure limited to ... bar").
Î
Only apply the signal pressure to the sig-
nal pressure connection (S) on the dia-
phragm chamber of the actuator which
does not contain any springs (see
Fig. 3-1 and Fig. 3-2 in the 'Design and
principle of operation' section).
Î
Only use vent plugs that let air through
them (A1 in Fig. 3-1 in the 'Design and
principle of operation' section).
Summary of Contents for 3371 Series
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