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1436 cPos
4.2 Mounting to quarter turn actuators
4.2.1 Preparation of the valve actuator
10
0° / CLOSED
90° / OPEN
1. The actuator must be in the zero position (actuator ven-
ted). Double acting actuators should be moved to the valve
"CLOSED" position.
2. Remove the screw 10 which retains the optical position
indicator.
3. Determine the turn direction of the actuator (seen from
above the turn direction of the actuator must be antic-
lockwise, when the actuator moves from the "CLOSED"
to the "OPEN" position. In cases where the actuator turns
in a clockwise direction, the travel sensor's end position,
contrary to given instructions, needs to be in the opposite
direction).
4.2.2 Assembling the travel sensor
1. Before mounting the travel sensor on the actuator, make
sure that the shaft height and the hole pattern in the actua-
tor match the dimensions of the mounting bracket 6.
2. The travel sensor shaft is marked by a 2.
Set marking 2 so that it is in correct alignment
with the 0° marking on the underside of travel
sensor housing 8.
In the design with an external travel sensor 9,
the 0° marking can be found on the left side of
the cable exit (the electrical turn range can be
found 90° clockwise from that position).
Information on the positioner:
The slotted holes should be positioned in the
centre on the screws. In the case of incorrect
travel set up, (determined by checking the
attachment, see chapter 4.2.5), the retainer
needs to be changed slightly while adapting
settings.
2
Travel sensor with marking
8
9
View X, only travel sensor
on positioner
View X, only travel sensor used
in the design with an external
travel sensor
0
90
View X
3. Place adapter 4 onto the shaft of travel sensor 2 without
turning the shaft as you do so.
2
4
4. Screw positioner 1 or travel sensor 4 onto mounting
bracket 6
4
6
1
View X
4
6
7
90°
45°0°
6
View X with mounting bracket and adapter
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