2 Attachment to the control
valve – mounting parts and
accessories
The positioner can be attached either di
-
rectly to a SAMSON Type 3277 Actuator or
according to IEC 60534-6 (NAMUR) to con
-
trol valves with cast yokes or rod-type yokes
as well as to rotary actuators according to
VDI/VDE 3845.
For attachment to the various actuators, cor
-
responding mounting parts and accessories
are required. These are listed with their or
-
der numbers in Tables 1 to 5.
On attaching the positioner, it is important
to observe the assignment between lever
and pin position according to the travels
listed in the travel tables.
The actual valve travel that can be achieved
is restricted by the pin position used and ad-
ditionally by the actuator spring compres-
sion required.
The travel range listed in the travel tables
can only achieved if the nominal range is set
to MAX.
The positioner is standard equipped with the
lever M (pin position 35).
Note!
If the standard mounted lever M (pin posi
-
tion 35) is replaced, the newly mounted le
-
ver must be moved once all the way as far
as it will go in both directions to adapt it to
the internal measuring lever.
8 EB 8384-1 EN
Attachment to the control valve – mounting parts and accessories
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