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Installation
5.6 Attachment to rotary actu-
ators according to VDI/
VDE 3845
5.6.1
Light version
Î See Fig. 5-6
Î Required mounting parts and accesso-
ries:
see section 5.8.
1. Place follower clamp (2) on the slotted
actuator shaft or spacer.
2. Place coupling wheel (3) with flat side
facing the actuator on the follower clamp
(2). Align slot so that it matches the di-
rection of rotation when the valve is in its
closed position.
3. Fasten the coupling wheel and follower
clamp tightly onto the actuator shaft us-
ing screw and disk spring.
4. Fasten the bottom pair of brackets (4)
with the bends pointing either facing to
the inside (80 mm) or to the outside
(130 mm) (depending on the actuator
size). Position the top pair of brackets (5)
and fasten.
5. Unscrew the standard follower pin from
the position transmitter's M lever (1). Use
the metal follower pin (Ø 5 mm) included
in the mounting kit and screw tight into
the hole for pin position 90°.
6. Fasten the position transmitter onto the
mounting plate (6).
7. Place the position transmitter together
with the mounting plate on the top brack-
5-10
et (5) and screw it tight. Taking the actu-
ator's direction of rotation into account,
adjust lever (1) so that it engages in the
slot of the coupling wheel (3) with its fol-
lower pin.
Î Adjust the lever correspondingly and in-
sert a thin screwdriver into the hole to
lock the shaft in place (see Fig. 5-2).
Keep the screwdriver in the hole to lock
in position.
Î Make sure that the lever (1) is parallel to
the long side of the position transmitter
when the rotary actuator is at half its an-
gle of rotation.
8. Stick the scale plate on the coupling
wheel so that the arrow tip indicates the
closed position and it can be easily read
when the valve is installed.
EB 4749 EN
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