Mounting Versions; Device Overview And Operating Controls - Samson 3730-1 Mounting And Operating Instructions

Design and principle of operation

3.1 Mounting versions

The Type 3730-1 Positioner is suitable for the
following types of attachment using the cor-
responding accessories (see section 3.3):
− Direct attachment to Type 3277 Actuator
(see section 5.3): The positioner is
mounted on the yoke. The signal pres-
sure is connected to the actuator over a
connection block: internally over a hole
in the valve yoke for "actuator stem ex-
tends" fail-safe action and through an
external signal pressure line for "actuator
stem retracts" fail-safe action.
− Attachment to actuators according to
IEC 60534-6 (see section 5.4): The posi-
tioner is mounted to the control valve us-
ing a NAMUR bracket.
− Attachment according to VDI/
VDE 3847-1/-2 (see section 5.5/sec-
tion 5.6): Attachment according to VDI/
VDE 3847-1/-2 using the corresponding
accessories allows the positioner to be
replaced quickly while the process is run-
ning.
− Attachment to Type 3510 Micro-flow
Valve (see section 5.7): The positioner is
attached to the valve yoke using a brack-
et.
− Attachment to rotary actuators according
to VDI/VDE 3845 (see section 5.8): The
positioner is mounted to the rotary actu-
ator using the corresponding accessories.
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3.2 Device overview and oper-
ating controls
See section 6 on page 70.
EB 8384-1 EN