Adjusting The Volume Restriction Q; Adapting The Display Direction - Samson 3730-5 Mounting And Operating Instructions

slide switch position and re-initialize the po-
sitioner.
Note:

The switch position is prompted prior
to an initialization. After an initial-
ization has been completed, chang-
ing the switch position does not have
any effect on the operation of the po-
sitioner.
7.2 Adjusting the volume re-
striction Q
Fig. 24: Volume restriction Q
MAX BACK/MIN SIDE setting
The volume restriction Q serves to adapt the
air output capacity to the size of the actua-
tor:
− Actuators with a transit time < 1 s, e.g.
linear actuators with an effective area
smaller than 240 cm², require a restrict-
ed air flow rate (MIN).
− Actuators with a transit time ≥ 1 s do not
require the air flow rate to be restricted
(MAX).
The position of volume restriction Q also de-
pends on how the signal pressure is routed
at the actuator in SAMSON actuators:
EB 8384-5 EN
MAX BACK
MIN SIDE
Q
MIN BACK
MAX SIDE
− The SIDE position applies for actuators
with a loading pressure connection at the
side, e.g. Type 3271-5.
− The BACK position applies for actuators
with a loading pressure connection at the
back, e.g. Type 3277-5.
− The SIDE restriction position always ap-
plies for actuators from other manufac-
turers.
Overview · Position of the volume restric-
tion Q*
Transit time
Signal
pressure
Connection at the side
Connection at the back
* Intermediate settings are not permitted.
NOTICE
Malfunction due to changed start-up
settings.
Initialize an initialized positioner
again after the position of the volume
restriction has been changed.
7.3 Adapting the display direc-
tion
To adapt the reading on the display to the
mounting situation of the actuator, the dis-
play contents can be turned by 180°.
Start-up and settings
<1 s ≥1 s
MIN SIDE MAX SIDE
MIN BACK MAX BACK
63