Samson 3730 Series User Manual

EB 8384-3 EN 6-1
Operation
6 Operation
Rotary pushbutton
The rotary pushbutton is located underneath
the front protective cover. The positioner is
operated on site using the rotary pushbutton:
Turn : Select codes and values
Press :conrmsetting.
AIR TO OPEN/AIR TO CLOSE slide switch
− AIR TO OPEN applies to a valve opening
as the signal pressure increases.
− AIR TO CLOSE applies to a valve closing
as the signal pressure increases.
The signal pressure is the pneumatic pressure
at the output of the positioner applied to the
actuator.
Volume restriction Q
The volume restriction serves to adapt the air
output capacity to the size of the actuator.
Depending on the air passage at the actua-
tor,twoxedsettingsareavailable.
− Foractuatorssmallerthan240cm²and
with a signal pressure connection at the
side(Type3271-5),setrestrictiontoMIN
SIDE.
− Foraconnectionattheback(Type3277-
5), set restriction to MIN BACK.
− Foractuators240cm²andlarger,setto
MAX SIDE for a side connection and to
MAX BACK for a connection at the back.
Readings
Icons assigned to certain codes, parameters
and functions are indicated on the display.
%
mm
AIR TO
OPEN CLOSE
INIT
CAUTION
VALVE
ACTUATES
MIN SIDE MAX BACK MIN BACK
MAX SIDE
Q
%
S
mm
%
S
mm
SERIAL INTERFACE
%
mm
Initialization key Cap and rotary switch Metal tag of proximity switch
SSP interface
Switch for AIR TO
OPEN/AIRTO
CLOSE
Volumerestriction
Rotary pushbutton
Fig.6-1: Operating controls

Samson 3730 Series Specifications

General

Brand	Samson
Model	3730 Series
Category	Valve Positioners
Language	English