Heavy-Duty Version - Samson 3730-6 Mounting And Operating Instructions
3730 series electropneumatic positioner with hart communication and pressure sensors
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Also See for 3730-6:
- Configuration manual (28 pages) ,
- Mounting and operating instructions (220 pages) ,
- Operating instructions manual (120 pages)
Table of Contents
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Attachment to the control valve – Mounting parts and accessories
4.4.1 Heavy-duty version
Refer to Table 4 on page 42 for the required
mounting parts and accessories.
Both mounting kits contain all the necessary
mounting parts. First select correct actuator
size. Prepare actuator, and mount required
adapter supplied by the actuator manufac-
turer, if necessary.
1.
Mount the housing (10) onto the rotary
actuator. In case of VDI/VDE attach-
ment, place spacers (11) underneath, if
necessary.
For SAMSON Type 3278 and VETEC
2.
S160 Rotary Actuator, screw the
adapter (5) onto the free end of the
shaft or place adapter (5.1) onto the
shaft of the VETEC R Actuator.
Place adapter (3) onto Type 3278,
VETEC S160 and VETEC R Actuator. For
VDI/VDE version, this step depends on
the actuator size.
3.
Stick adhesive label (4.3) onto the cou-
pling wheel in such a manner that the
yellow part of the sticker is visible in the
window of the housing when the valve
is OPEN. Adhesive labels with explana-
tory symbols are enclosed and can be
stuck on the housing, if required.
4.
Screw tight coupling wheel (4) onto the
slotted actuator shaft or adapter (3) us-
ing screw (4.1) and disk spring (4.2).
5.
Undo the standard follower pin (2) on
the lever M (1) of the positioner. Attach
the follower pin (Ø 5) included in the
mounting kit to pin position 90°.
32
EB 8384-6 EN
6.
If applicable, mount pressure gauge
bracket (7) with pressure gauges or, in
case G ¼ threaded connections are re-
quired, the connecting plate (6), mak-
ing sure both seal rings (6.1) are
seated properly.
For double-acting, springless rotary ac-
tuators, a reversing amplifier is re-
quired to attach the positioner to the
actuator. Refer to section 4.5.
7.
Place positioner on housing (10) and
screw it tight. Considering the actua-
tor's direction of rotation, align lever
(1) so that it engages in the correct slot
of the coupling wheel with its follower
pin (Fig. 10).
Fig. 10 · Direction of rotation
Counterclockwise
1
10
4
Clockwise
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