Samson TROVIS 3730-1, Перевод оригинальной инструкции

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5-26 EB 8484-1 EN
Installation
5.6.6 Attachment according to
VDI/VDE 3845
Î
See Fig. 5-23
Î
Required mounting parts and accesso -
ries: Table 5-10 on page 5-43.
Î
Observe travel tables on page 5-4.
The positioner is mounted to the rotary actu-
ator using two pairs of brackets.
Prior to attaching the positioner to the
SAMSON Type 3278 Rotary Actuator,
mount the associated adapter (5) to the free
end of the rotary actuator shaft.
On attaching the positioner as described be -
low, it is imperative that the actuator's direc -
tion of rotation is observed.
1. Place follower clamp (3) on the slotted ac-
tuator shaft or spacer (5).
2. Place coupling wheel (4) with flat side
facing the actuator on the follower clamp
(3). Align slot so that it matches the direc-
tion of rotation when the valve is in its
closed position (see Fig. 5-23).
3. Fasten the coupling wheel (4) and follow-
er clamp (3) tightly onto the actuator shaft
using screw (4.1) and disk spring (4.2).
4. Fasten the bottom pair of brackets (10.1)
with the bends pointing either facing to
the inside or to the outside (depending on
the actuator size) onto the actuator hous-
ing. Position the top pair of brackets (10)
and fasten.
5. Mount connecting plate (6) or pressure
gauge bracket (7) with pressure gauges
on the positioner. Make sure that the two
seals (6.1) are seated properly. Dou-
ble-acting springless rotary actuators re-
quire the use of a reversing amplifier on
the connection side of the positioner hous-
ing (see section 5.6.7).
6. Unscrew the standard follower pin (2)
from the positioner'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° .
7. Place positioner on the top bracket (10)
and fasten tight. Taking the actuator's di-
rection of rotation into account, adjust le-
ver (1) so that it engages in the slot of the
coupling wheel (4) with its follower pin
(Fig. 5-23). It must be guaranteed that the
lever (1) is parallel to the long side of the
positioner when the actuator is at half its
angle of rotation.
Note
1.2
1.1
1
2
4.1
4.2
5
3
Fig. 5-22: Mounting the coupling wheel on
Type 3278
Legend for Fig. 5-22 and Fig. 5-23
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower clamp
4 Coupling wheel
4.1 Screw
4.2 Disk spring
4.3 Scale plate
5 Actuator shaft
Adapter for Type 3278
6 Connecting plate
6.1 Seals
7 Pressure gauge bracket
8 Pressure gauge mounting kit
10 Top pair of brackets
10.1 Bottom pair of brackets
10
10.1
6
(7, 8)
1.1
2
4.3
5
6.1
4
1.2
1
130 mm
80 mm
Control valve opens counterclockwise
Control valve opens clockwise
Slot
Slot
Fig. 5-23: Attachment to rotary actuators