Attachment To The Control Valve - Mounting Parts And Accessories - Samson 3725 series Mounting And Operating Instructions

Attachment to the control valve – Mounting parts and accessories
4 Attachment to the control
valve – Mounting parts and
accessories
WARNING!
Attach the positioner, keeping the following
sequence:
1. Mount the positioner on the control valve
2. Connect the supply air
3. Connect the electrical power
4. Perform the start-up settings
The positioner is suitable for the following
types of attachment:
4
Direct attachment to SAMSON
Type 3277 Actuator
4
Attachment to actuators according to
IEC 60534-6 (NAMUR)
4
Attachment to Type 3372 Linear Actua-
tor (V2001 Valve Series)
4
Attachment to rotary actuators according
to VDI/VDE 3845
NOTICE
Attach the positioner to the control valve,
observing the following instructions to avoid
damaging the positioner.
– Use only the mounting parts/accessories
listed in the table (section 4.5). Observe
the type of attachment!
– Observe the assignment between lever
and pin position!
Lever and pin position
The positioner is adapted to the actuator
and to the rated travel by the lever on the
12
EB 8394 EN
back of the positioner and the pin inserted
into the lever.
The travel tables show the maximum adjust-
ment range at the positioner. The travel that
can be implemented at the valve is addition-
ally restricted by the selected fail-safe posi-
tion and the required compression of the ac-
tuator springs.
The positioner is standard equipped with the
lever M (pin position 35).
Fig. 3 · Lever M with pin position 35
NOTICE
When undoing the lever, e.g. with a screw-
driver, do not move the shaft by moving the
lever past the mechanical stops. Otherwise,
the internal stops may be damaged.
Fig. 4 · Stop for lever