Samson TROVIS 3731-3 Service manual

Electropneumatic Ex d Positioner
Type 3731-3
With HART®communication
Mounting and
Operating Instructions
EB 8387-3 EN
Firmware version 1.3x
Edition November 2005
Fig. 1 · Type 3731-3

Contents Page
1 Design and principle of operation . . . . . . . . . . . . . . . . . . . 6
1.1 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Attachment to the control valve – Mounting parts and accessories . . . 10
2.1 Direct attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1.1 Type 3277-5 Actuator. . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1.2 Type 3277 Actuator. . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.2 Attachment according to IEC 60534-6 . . . . . . . . . . . . . . . . . 18
2.3 Attachment to Type 3510 Micro-flow Valve. . . . . . . . . . . . . . . 20
2.4 Attachment to rotary actuators . . . . . . . . . . . . . . . . . . . . . 22
2.5 Reversing amplifier for double-acting actuators . . . . . . . . . . . . . 24
3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.1 Pneumatic connections . . . . . . . . . . . . . . . . . . . . . . . . 26
3.1.1 Signal pressure gauges . . . . . . . . . . . . . . . . . . . . . . . . 26
3.1.2 Supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.2 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.2.1 Establishing communication . . . . . . . . . . . . . . . . . . . . . . 30
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.1 Enabling and selecting parameters . . . . . . . . . . . . . . . . . . 32
4.2 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.2.1 Automatic and manual operating modes . . . . . . . . . . . . . . . . 34
4.2.2 SAFE – Fail-safe position . . . . . . . . . . . . . . . . . . . . . . . 35
5 Start-up – Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.1 Adapting the display . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.2 Limiting the signal pressure . . . . . . . . . . . . . . . . . . . . . . 36
5.3 Checking the operating range of the positioner . . . . . . . . . . . . . 37
5.4 Determining the fail-safe position . . . . . . . . . . . . . . . . . . . 37
5.5 Positioner initialization . . . . . . . . . . . . . . . . . . . . . . . . 39
5.5.1 Initialization modes . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.6 Fault/failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.7 Zero calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.8 Reset to default values . . . . . . . . . . . . . . . . . . . . . . . . 49
5.9 Start-up via local interface (SSP) . . . . . . . . . . . . . . . . . . . . 50
5.10 Start-up over HART®communication. . . . . . . . . . . . . . . . . . 50
6 Status and diagnostic alarms . . . . . . . . . . . . . . . . . . . . . 51
6.1 Standard EXPERT diagnostics . . . . . . . . . . . . . . . . . . . . . 51
2EB 8387-3 EN
Contents

6.2 Extended EXPERT+diagnostics . . . . . . . . . . . . . . . . . . . . . 51
6.3 Classification of the status alarms and the condensed status . . . . . . . 52
7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
8 Servicing explosion-protected devices . . . . . . . . . . . . . . . . . 54
9 Code list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
10 Setting with TROVIS-VIEW software – Parameter list. . . . . . . . . . 72
10.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10.2 Starting TROVIS-VIEW and performing basic settings . . . . . . . . . . 73
10.3 Setting the parameters. . . . . . . . . . . . . . . . . . . . . . . . . 76
11 Parameter list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12 Dimensions in mm . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Test certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
EB 8387-3 EN 3
Contents

4EB 8387-3 EN
Safety instructions
General safety instructions
4
The positioner may only be assembled, started up or operated by trained
and experienced personnel familiar with the product.
According to these mounting and operating instructions, trained personnel is
referred to as individuals who are able to judge the work they are assigned
to and recognize possible dangers due to their specialized training, their
knowledge and experience as well as their knowledge of the relevant
standards.
4
Explosion-protected versions of this positioner may only be operated by
personnel who have undergone special training or instructions or who are
authorized to work on explosion-protected devices in hazardous areas.
Refer to section 8.
4
Any hazards that could be caused by the process medium, the operating
pressure, the signal pressure or by moving parts of the control valve are to
be prevented by means of the appropriate measures.
4
If inadmissible motions or forces are produced in the actuator as a result of
the supply pressure level, it must be restricted by means of a suitable supply
pressure reducing station.
Do not operate the positioner with the back of the positioner/vent opening
facing upwards. The vent opening must not be sealed when the positioner is
installed on site.
4
Proper shipping and appropriate storage are assumed.
4
Note! The device with a CE marking fulfils the requirements of the Directives
94/9/EC (ATEX) and 89/336/EEC (EMC).
The declaration of conformity is available on request.

EB 8387-3 EN 5
Article code
Article code Type 3731-3 XXXXXX00000XX
Explosion protection
II 2 G EEx d IIC T6/II 2 G EEx de IIC T6
acc. to ATEX
EEx d IIC T6 acc. to FM/CSA
2
2
1
3
Optional additional equipment:
Position transmitter 0 1
Forced venting 0 5
Binary output (NAMUR/PLC) 0 6
EXPERT diagnostics
EXPERT+diagnostics
1
2
Electrical threaded connection M20x1.5
½ NPT 1 2
Special applications
None
Device compatible with paint 0 1
Special versions None 000

1 Design and principle of
operation
The electropneumatic Ex d positioner is
mounted to pneumatic control valves and is
used to assign the valve position (controlled
variable x) to the control signal (reference
variable w). The DC control signal received
from a control unit is compared to the travel
or rotational angle of the control valve and
the corresponding signal pressure (output
variable y) is issued.
The positioner is designed depending on the
corresponding accessories for direct attach-
ment to Type 3277 Actuators or for attach-
ment to actuators according to IEC 60534-6
(NAMUR).
Additionally, a coupling wheel included in
the accessories is required to transfer the ro-
tary motion for rotary actuators according to
VDI/VDE 3845.
Springless rotary actuators require a revers-
ing amplifier included in the accessories to
permit the powered operation in either di-
rection.
The positioner basically consists of a travel
sensor system that functions proportional to
resistance, an analog i/p module with
downstream booster as well as the electronic
unit with a microcontroller. All parts are en-
closed in an Ex d housing. The electrical
cables are connected over a separate termi-
nal compartment which also has Ex d pro-
tection.
The position of the valve is transmitted as
linear travel motion or angle of rotation to
the travel sensor (2) and to an analog PD
controller (3). Simultaneously, an A/D con-
verter (4) transmits the position of the valve
to the microcontroller (5). The PD controller
compares the actual value with the 4 to
20 mA DC control signal issued by the con-
trol unit.
In case of a system deviation, the operation
of the i/p converter (6) is changed so that
the actuator (1) is filled or vented via the
downstream air capacity booster (7). This
causes the closure member of the control
valve to move to the position determined by
the reference variable.
The pneumatic air capacity booster (7) and
the pressure regulator (8) are provided with
supply air. An intermediate flow regulator
(9) with fixed settings is used to purge the
positioner and also guarantees trouble-free
operation of the pneumatic booster. The out-
put signal pressure supplied by the booster
can be limited over the software.
Serial interface
The positioner is equipped with an interface
to allow the SAMSON TROVIS-VIEW Con-
figuration and Operator Interface software
to transmit data and parameters over a se-
rial interface adapter from the RS-232 inter-
face of a computer to the positioner.
Options
Forced venting: If there is no operating volt-
age at the corresponding terminals, the i/p
module is not actuated. The positioner
cannot operate anymore and the control
valve moves to the fail-safe position deter-
mined by the actuator, independent of the
reference variable.
Binary contact: The positioner has three in-
ternal binary signals which can be analyzed
over the A/B/C terminals. Two of these sig-
nals are assigned to the valve end positions
6EB 8387-3 EN
Design and principle of operation

and one signal to a fault alarm contact (con-
densed status).
The assignment of these signals to the
A/B/C terminals is determined over
Code 25.
Position transmitter: The position transmitter
(13) is a two-wire transmitter and issues the
travel sensor signal as a 4 to 20 mA signal
processed by the microcontroller. Since this
signal is issued independent of the
positioner’s input signal (min. current
3.8 mA), the actual travel/angle of rotation
is controlled in real-time. Additionally, the
position transmitter provides the possibility
of signaling a positioner fault over a signal
current of 2.4 mA or 21.6 mA.
1.1 Communication
The positioner is equipped with an interface
for HART®protocol (Highway Addressable
Remote Transducer) for communication pur-
poses. Data are transmitted in a superim-
posed frequency (FSK = Frequency Shift
Keying) on the existing signal loop for the 4
to 20 mA reference variable.
Either a HART®capable handheld commu-
nicator or a PC with FSK modem can be
used to establish communication and oper-
ate the positioner.
EB 8387-3 EN 7
Design and principle of operation
Fig. 2 · Functional diagram
%
S
mm
%
mm
w
x
G
PD
Serial
Interface 16
22
20
13
23
2
4
21
17
FSK
519
3
6
7
81
w
9
x
y
1 Control valve
2 Travel sensor
3 PD controller
4 A/D converter
5 Microcontroller
6 i/p converter
7 Air capacity booster
8 Pressure regulator
9 Flow regulator
13* Analog position transmitter
16 Display
17* Control of
forced venting
19 D/A converter
20 Interface (SSP)
21 HART®modulation
22 Rotary pushbutton
23* Binary output
* Optional
Ex d enclosure

1.2 Technical data
8EB 8387-3 EN
Design and principle of operation
Positioner
Nominal travel,
adjustable Direct attachment to Type 3277: 3.6 to 30 mm, attachment acc. to IEC 60534-6: 3.6 to 200 mm or 24° to 100° opening angle for rotary actuators
Travel range Adjustable within the nominal travel/nominal angle, max. ratio 1 : 5
Reference variable w Signal range 4 to 20 mA, 2-wire unit, reverse polarity protection,
min. span 4 mA, static destruction limit 40 V, internal current limit 60 mA
Minimum current 3.6 mA for display, 3.8 mA for operation
Load impedance ≤9 V corresponding to 450 Ωat 20 mA
Supply air
Supply pressure from 1.4 to 6 bar (20 to 90 psi),
Air quality acc. to ISO 8573-1 (edition 2004): Max. particle size and density: Class 4
Oil content: Class 3, pressure dew point: Class 3 or at least 10 K beneath the lowest
ambient temperature to be expected
Signal pressure (output) 0 bar up to supply pressure, limitable to 1.4/2.4/3.7 ±0.2 bar via software
Characteristic,
user-defined adjustable
over operating software
Linear/equal percentage/reverse equal percentage/butterfly valve linear/
butterfly valve eq. percentage/rotary plug valve linear/rotary plug valve eq.
percentage/segmented ball valve linear/segmented ball valve eq.percentage
Deviation from terminal-based conformity ≤1 %
Hysteresis ≤0.3 %
Sensitivity ≤0.1 %
Transit time Separately adjustable up to 240 seconds for supply air and exhaust air
Direction of action Reversible
Air consumption, steady
state Independent from supply pressure approx. 110 ln/h
Air delivery
Actuator pressurized
Actuator vented At Δp = 6 bar: ≥8.5 mn3/h, at Δp = 1.4 bar: 3.0 mn3/h KVmax (20 °C) = 0.09
at Δp = 6 bar: ≤14.0 mn3/h, at Δp = 1.4 bar: 4.5 mn3/h KVmax (20 °C) = 0.15
Permissible ambient
temperature
–40 to +80 °C
The limits specified in the EC Type Examination Certificate additionally apply for
explosion-protected devices.
Influences Temperature: ≤0.2 %/10 K Supply air: None
Vibration: ≤0.25 % up to 2000 Hz and 4 g acc. to IEC 770
Degree of protection IP 66
Electromagnetic
compatability Complying with EN 61000-6-2, EN 61000-6-3 and NAMUR Recommendation NE 21
Explosion protection II 2 G EEx d IIC T6 / II 2 G EEx de IIC T6 acc. to ATEX
EEx d IIC T6 acc. to FM/CSA

EB 8387-3 EN 9
Design and principle of operation
Optional binary output Software limit switch, galvanically isolated, optionally NAMUR EN 60947-5-6 or PLC
or fault alarm output
Signal status
Terminals B-C
Switching output AC/DC (PLC) Terminals A-B
Conductive/remaining voltage < 1.7 V Non-conducting/ ≥2.1 mA
Non-conducting/high resist. I < 100 μA Conductive/ ≤1.2 mA
Operating voltage Switch. capacity: 40 V DC/28 V/AC 0.3 A
Static destr. limit: 45 V DC/32 V/AC 0.4 A Only for connection to signal converter acc. to EN 60 957-5-6
Optional forced venting, galvanically isolated
Input 0 to 40 V DC/ 0 to 28 V AC, static destruction limit 45 V DC/ 32 V AC,
input resistance ≥7 kΩ
Signal Fail-safe position when
input voltage ≤3 V Normal operation when input voltage > 5 V
Optional analog
position transmitter Two-wire transmitter
Supply voltage 11 to 35 V DC, reverse polarity protection, static destruction limit 45 V
Output signal 4 to 20 mA
Direction of action Reversible
Operating range –1.25 to 103 % of the travel range, corresponding to 3.8 to 20.5 mA, optionally also
for fault alarm over 2.4 or 21.6 mA acc. to NAMUR Recommendation NE 43
Characteristic Linear
Hysteresis and
HF influence Same as positioner
Other influences Same as positioner
Fault alarm Can be issued with current signal 2.4 mA or 21.6 mA
Materials
Housing: Die-cast aluminum EN AC-AL-Si10Mg(Fe) acc. to DIN EN 1706, chromated and plastic coated,
External parts: Stainless steel 1.4301/1.4305/1.4310
Weight Approx. 2.5 kg
Communication (local) SAMSON SSP interface and serial interface adapter
Software requirements TROVIS-VIEW with database module 3731-3
Communication (HART) HART®field communication protocol
Software requirements
(HART)
For handheld communicator: device description for 3731-3,
For PC: DTM file acc. to Specification 1.2, suitable for integrating the positioner in frame
applications that supports the FDT/DTM concept (e.g. PACTware);
other integration options (e.g. AMS, PDM) available.

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 mounting the positioner, use the assign-
ment between the lever and pin position
specified in the travel tables opposite.
The travels show the maximum setting range
at the positioner. The actual travel at the
valve is additionally restricted by the
fail-safe position selected and the required
actuator spring compression.
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.
Note!
A signal pressure restriction must be in-
serted into the positioner when actuators
with less than 240 cm² diaphragm area are
used (see Table 6 on page 13).
The positioner is fitted with pneumatic con-
nections with ¼ NPT threads. In case, G ¼
threaded connections are required, the con-
necting plate (6) included in the accessories
must be attached.
10 EB 8387-3 EN
Attachment to the control valve – Mounting parts and accessories

EB 8387-3 EN 11
Attachment to the control valve – Mounting parts and accessories
Travel table for direct attachment to Type 3277 Actuators
Type
3277-5
and
3277
Actuator
Actuator size
cm² Rated travel mm Setting range of positioner Min. Travel Max. Required lever Assigned pin position
120 7.5 5.0 25.0 M 25
120/240/350 15 7.0 35.4 M 35
700 30 10.0 50.0 M 50
Travel table for attachment acc. to IEC 60534-6 (NAMUR)
SAMSON valves Other valves/actuators Required
lever Assigned pin position
Type 3271
Actuator1
cm² Rat. travel mm Min. Travel Max.
60 and 120
with 3510 valve 7.5 3.6 17.7 S 17
120 7.5 5.0 25.0 M 25
120/240/350 15 7.0 35.4 M 35
700/1400/2800 15 and 30/30 10.0 50.0 M 50
1400/2800 60 14.0 70.7 L 70
1400/2800 60 20.0 100.0 L 100
1400/2800 120 40.0 200.0 XL 200
Rotary actuators Opening angle 24 to 110° M 90°

12 EB 8387-3 EN
Attachment to the control valve – Mounting parts and accessories
Table 1 Direct attachment Order no.
Mounting parts For actuators with 120 cm2effective diaphragm area, see Fig. 3 1400-7452
Accessories
for the
actuator
Switchover plate (old) for Actuator Type 3277-5xxxxxx.00 (old) 1400-6819
Switchover plate new for Actuator Type 3277-5xxxxxx.01 (new) 1400-6822
Connecting plate for additional attachment of a solenoid valve G 1/8
Connecting plate (old) for Actuator Type 3277-5xxxxxx.00 (old) 1/8 NPT
1400-6820
1400-6821
Connecting plate new for Actuator Type 3277-5xxxxxx.01 (new) 1400-6823
Note: Only new switchover and connecting plates can be used with new actuators (Index 01).
Old and new plates are not interchangeable.
Accessories
for the
positioner
Connecting plate (6) G ¼: 1400-7461
or pressure gauge bracket (7) G ¼: 1400-7458 ¼ NPT: 1400-7459
Pressure gauge mounting kit (8) (output/supply) St. st./Bs: 1400-6950 St. st./St. st.: 1400-6951
Table 2 Direct attachment
Accessories
Mounting parts for actuators with 240, 350 and 700 cm2, see Fig. 4 1400-7453
Required piping with screw fittings for "Actuator
stem retracts" or when the top diaphragm
chamber is filled with air
cm2Steel Stainless steel
240 1400-6444 1400-6445
350 1400-6446 1400-6447
700 1400-6448 1400-6449
Connection block with seals and screw G ¼: 1400-8811 ¼ NPT: 1400-8812
Pressure gauge mounting kit (output and supply) St.st./Bs: 1400-6950 St.st/St.st.: 1400-6951

EB 8387-3 EN 13
Attachment to the control valve – Mounting parts and accessories
Table 3 Attachment to NAMUR ribs or control valves with rod-type yokes (rod diameter Ø 35 mm or smaller)
according to IEC 60534-6, see Fig. 5
Travel in
mm Lever For actuators Order no.
7.5 S Type 3271-5 Actuator w. 60/120 cm2on Type 3510 Valve 1400-7457
5 to 50 Without (lever M on
standard model) Actuators from other manufacturers and Type 3271 with 120 to 700 cm21400-7454
14 to 100 L Actuators f. other manufacturers and Type 3271 w. 1400 cm21400-7455
40 to 200 XL Actuators from other manufacturers and Type 3271 with
1400/2800 cm2, 120 mm travel 1400-7456
30 or 60 L Type 3271 Actuator with 1400cm2(120 mm travel),
2800 cm2(30 or 60 mm travel) 1400-7466
Accessories
Connecting plate G ¼: 1400-7461
or pressure gauge bracket (7) G ¼: 1400-7458 ¼ NPT: 1400-7459
Pressure gauge mounting kit (output/supply) St.st./Bs: 1400-6950 St.st./St.st.: 1400-6951
Table 4 Attachment to Type 3510 Micro-flow Valves, see Fig. 6 Order no.
Actuator cm
260 /120 Attachment to lever S 1400-7457
Accessories
Connecting plate (6) G ¼: 1400-7461
or pressure gauge bracket (7) G ¼: 1400-7458 ¼ NPT: 1400-7459
Pressure gauge mounting kit (output/supply) St.st./Bs: 1400-6950 St.st./St.st.: 1400-6951
Table 5 Attachment to rotary actuators (VDI/VDE 3845 for all sizes of fixing level 2) see Figs. 7 and 8
Mounting
parts
Attachment acc. to VDI/VDE 3845
Attachment for SAMSON Type 3278 (also for VETEC Type S160 and Type R)
Attachment for Camflex II
1400-9244
1400-9245
1400-9120
Accessories
Connecting plate G ¼: 1400-7461
or pressure gauge bracket (7) G ¼: 1400-7458 ¼ NPT: 1400-7459
Pressure gauge mounting kit (output/supply) St.st./Bs: 1400-6950 St.st./St.st.: 1400-6951
Table 6 General accesssories
Accessories
Pneumatic reversing amplifier for double-acting
actuators G ¼ ¼ NPT 1079-1118 1079-1119
Signal pressure restrictions (screw-in and brass restrictions) 1400-6964

2.1 Direct attachment
2.1.1 Type 3277-5 Actuator
Refer to Table 1 on page 12 for the required
mounting parts as well as the accessories
with their order numbers as well as to the
travel table on page 11.
Actuator with 120 cm²
Depending on the type of positioner attach-
ment, the signal pressure is routed either left
or right of the yoke through a bore to the
actuator diaphragm. Depending on the
fail-safe action of the actuator "Actuator
stem extends" or "Actuator stem retracts"
(valve closes or opens if the supply air fails),
the switchover plate (9) must first be at-
tached to the actuator yoke. Align the
switchover plate with the corresponding
symbol for left or right attachment according
to the marking (view looking onto the
switchover plate).
1. If applicable, mount pressure gauge
bracket (7) with pressure gauges or, in
case G ¼ threaded connections are re-
quired, the connecting plate (6), making
sure both seal rings (6.1) are seated
properly.
2. Remove screw plug (4) on the back of
the positioner and seal the signal pres-
sure output "Output 38" (or on the pres-
sure gauge bracket (7) or on the con-
necting plate (6)) with the stopper (5) in-
cluded in the accessories.
3. Place follower clamp (3) on the actuator
stem, align and screw tight so that the
mounting screw is located in the groove
of the actuator stem.
4. Press the brass restriction 1400-6964
from the accessories into the seal of the
signal pressure input at the actuator
yoke.
5. Mount cover plate (10) with narrow side
of the cut-out opening (Fig. 3, on the
left) pointing towards the signal pressure
connection. Make sure that the bonded
gasket (14) points towards the actuator
yoke.
6. 15 mm travel: Keep the follower pin (2)
at lever M(1) on the back of the
positioner in the pin position 35 (deliv-
ered state).
7.5 mm travel: Remove the follower pin
(2) from the pin position 35, reposition it
in the bore for pin position 25 and
screw tight.
7. Insert formed seal (15) into the groove of
the positioner housing, pressing the four
retaining rings over the housing screws
and both fittings into the housing re-
cesses.
8. Thread the bias spring (17) through the
crosspiece underneath the lever (1) and
push into the hole in the housing. Push
the lever (1) until it engages into place.
Place positioner on the cover plate (10)
and fasten it using the three fixing
screws.
Check whether the follower pin (2) is rest-
ing on the top of the follower clamp (3).
The lever (1) must rest on the follower
clamp with spring force.
On mounting, make sure that the seal
ring (10.1) is inserted in the borehole of
the cover plate.
14 EB 8387-3 EN
Attachment to the control valve – Mounting parts and accessories

EB 8387-3 EN 15
Attachment to the control valve – Mounting parts and accessories
911
Supply 9 Output 38
5
6
4
17
7
6
10
10.1
3
2
1
15
6.1
1.1
1.2
14
8
A
A-A
A
Symbols
Actuator stem
extends
Attachment left Attachment right
Actuator stem
retracts
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower clamp
4 Screw plug
5 Stopper
6 Connecting plate for G ¼
6.1 Seal rings
7 Pressure gauge bracket
8 Press. gauge mounting kit
9 Switchover plate
for actuator
10 Cover plate
10.1 Seal ring
11 Cover
14 Gasket
15 Gasket
17 Bias spring
(only with direct att.)
Signal pressure
input for left
attachment
Cut-out of cover
plate
Signal pressure input
with brass restriction
Marking
Switchover plate (9)
Fig. 3 · Direct attachment - Signal pressure connection for Type 3277-5 Actuator with 120 cm
2
Signal pressure input
for right attachment

9. Mount cover (11) on the other side.
Make sure that the vent plug points
downwards when the control valve is in-
stalled to allow any condensed water
that collects to drain off.
Note!
If a solenoid valve or similar is mounted in
addition to the positioner on 120 cm
2
actua-
tors, do not remove the screw plug (4) at the
back of the positioner. In this case, the sig-
nal pressure must be routed from the signal
pressure output marked "output" to the actu-
ator using the necessary connecting plate
(Table 1). The switchover plate (9) is then
not used. The connection for the signal pres-
sure output must be fitted with the screw-in
restriction 1400-6964 from the accessories.
2.1.2 Type 3277 Actuator
Refer to Table 2 on page 12 for the required
mounting parts and the accessories with
their order numbers as well as to the travel
table on page 11.
Actuators with 240 to 700 cm2
The positioner can be mounted either on the
left or on the right side of the yoke. The sig-
nal pressure is routed to the actuator over
the connection block (12), for actuators with
fail-safe action "Actuator stem extends" in-
ternally through a bore in the valve yoke
and for "Actuator stem retracts" through ex-
ternal piping.
1. Place follower clamp (3) on the actuator
stem, align and screw tight so that the
mounting screw is located in the groove
of the actuator stem.
2. Mount cover plate (10) with narrow side
of the cut-out opening (Fig. 4, on the
left) pointing towards the signal pressure
connection. Make sure that the bonded
gasket (14) points towards the actuator
yoke.
3. For actuators with 700 cm2, remove the
follower pin (2) at lever M(1) on the
back of the positioner from pin position
35, reposition it in the bore for pin posi-
tion 50 and screw tight.
For actuators 240 and 350 cm2with
15 mm travel, the follower pin (2) re-
mains in pin position 35.
4. Insert formed seal (15) into the groove of
the positioner housing, pressing the four
retaining rings over the housing screws
and both fittings into the housing re-
cesses.
5. Thread the bias spring (17) through the
crosspiece underneath the lever (1) and
push into the hole in the housing. Push
the lever (1) until it engages into place.
Place positioner on the cover plate (10)
and fasten it using the three fixing
screws.
Check whether the follower pin (2) is rest-
ing on the top of the follower clamp (3).
The lever (1) must rest on the follower
clamp with spring force.
6. Make sure that the tip of the gasket (16)
projecting from the side of the connec-
tion block (12) is positioned above the
16 EB 8387-3 EN
Attachment to the control valve – Mounting parts and accessories

actuator symbol that corresponds with
the actuator with fail-safe action "Actua-
tor stem extends" or "Actuator stem re-
tracts." If necessary, remove the three
fixing screws and the cover. Then repo-
sition the gasket (16) turned by 180°.
The previous version of the connection
block (Fig. 4, bottom) requires the switch
EB 8387-3 EN 17
Attachment to the control valve – Mounting parts and accessories
Fig 4 · Direct attachment – Signal pressure connection for Type 3277 Actuator with 240, 350 and 700 cm
2
2
17
10 1415
12311
SUPPLY
13
16
1.1
1.2
1
12.1
12
12.1
1
A
1216 12.2 SUPPLY
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower clamp
10 Cover plate G ¼
11 Cover
12 Connection block
12.1 Screw
12.2 Stopper or
connection for
external piping
13 Switch plate
14 Gasket
15 Formed seal
16 Gasket
17 Bias spring
(only for direct attach.)
Cut-out of cover plate (10)
Actuator stem
retracts extends
Stem retracts
Stem extends
Marking
Connection block (old)
with switch plate (13)
View A
View B

plate (13) to be turned such that the cor-
responding actuator symbol points to the
marking.
7. Place the connection block (12) with the
associated seal rings against the
positioner and the actuator yoke. Screw
it tight using the fixing screw (12.1). For
actuators with fail-safe action "Actuator
stem retracts", additionally remove the
stopper (12.2) and fit on the external
signal pressure piping.
8. Mount cover (11) on the other side.
Make sure that the vent plug points to
the back when the control valve is in-
stalled to allow any condensed water
that collects to drain off.
2.2 Attachment according to
IEC 60534-6
The positioner is attached to the control
valve with a NAMUR bracket (10).
Refer to Table 3 on page 13 for the required
mounting parts and the accessories with
their order numbers as well as to the travel
table on page 11.
1. Screw the two bolts (14) to the bracket
(9.1) of the stem connector (9), place the
follower plate (3) on top and use the
screws (14.1) to tighten.
Actuator size 2800 cm² and 1400 cm²
(120 mm travel):
For a travel of 60 mm or smaller, screw the
longer follower plate (3.1) directly to the
stem connector (9). For a travel exceeding
60 mm, mount the bracket (16) first and
then the follower plate (3) to the bracket to-
gether with the bolts (14) and screws (14.1).
2. Mount NAMUR bracket (10) to the con-
trol valve as follows:
For attachment to the NAMUR rib, use
an M8 screw (11), washer and toothed
lock washer directly in the yoke bore.
For attachment to valves with rod-type
yokes, use two U-bolts (15) around the
yoke.
Align the NAMUR bracket (10) in such a
way that the slot of the follower plate (3)
is centrally aligned with the NAMUR
bracket at mid valve travel.
3. If applicable, mount pressure gauge
bracket (7) with pressure gauges or, in
case G ¼ threaded connections are re-
quired, the connecting plate (6), making
sure both seal rings (6.1) are seated
properly.
Note! Fit screw-in restriction (Table 6)
into output when actuators with dia-
phragm areas smaller than 240 cm2are
used.
4. Select required lever size (1) M,Lor XL
and pin position according to the actua-
tor size and valve travels listed in the ta-
ble on page 11.
Should you require a pin position other
than position 35 with the standard in-
stalled lever M, or require a lever size L
or XL, proceed as follows:
5. Screw the follower pin (2) in the as-
signed lever bore (pin position) as listed
in the table. Only use the longer follower
pin (2) included in the mounting kit.
18 EB 8387-3 EN
Attachment to the control valve – Mounting parts and accessories

EB 8387-3 EN 19
Attachment to the control valve – Mounting parts and accessories
Lever XL and L
1 Lever
1.1 Nut
1.2 Disk spring
3 Follower plate
3.1 Follower plate
6 Connecting plate
only for G ¼
6.1 Seal rings
7 Pressure gauge bracket
8 Pressure gauge
mounting kit
9 Stem connector
9.1 Bracket
10 NAMUR bracket
11 Screw
14 Bolt
14.1 Screw
15 U-bolt
16 Bracket
Attachment to
NAMUR rib
Additional bracket for
actuators with 2800 cm2
and travel ≥60 mm
Attachment to rod-type yoke
Rods with Ø max. 35 mm
Fit screw-in restriction into Output
(38) for actuators smaller than
240 cm2
Fig. 5 · Attachment according to IEC 60534-6 (NAMUR)

6. Place lever (1) on the positioner shaft
and screw tight using the disk spring
(1.2) and nut (1.1).
Note!
If you have mounted a new lever (1), you
must move it once all the way as far as it
will go in both directions.
7. Place positioner on the NAMUR bracket
in such a manner that the follower pin
(2) rests in the slot of the follower plate
(3, 3.1). Adjust the lever (1) correspond-
ingly.
Screw the positioner to the NAMUR
bracket using three fixing screws.
2.3 Attachment to Type 3510
Micro-flow Valve
The positioner is attached to the valve yoke
using a bracket.
Refer to Table 4 on page 13 for the required
mounting parts and the accessories with
their order numbers as well as to the travel
table on page 11.
1. Place clamp (3) on the valve stem con-
nector, align at a right angle and screw
tight.
2. Screw bracket (10) to the valve yoke us-
ing two screws (11).
3. If applicable, mount pressure gauge
bracket (7) with pressure gauges or, in
case G ¼ threaded connections are re-
quired, the connecting plate (6), making
sure both seal rings (6.1) are seated
properly.
4. Fit screw-in restriction (Table 6) into the
signal pressure output of the positioner
(or output of the pressure gauge bracket
or connecting plate).
5. Unscrew the standard installed lever M
(1) including follower pin (2) from the
positioner shaft.
6. Take lever S(1) and screw follower pin
(2) in the bore for pin position 17.
7. Place lever S on the positioner shaft and
screw tight using the disk spring (1.2)
and nut (1.1).
Move lever once all the way as far as it
will go in both directions.
20 EB 8387-3 EN
Attachment to the control valve – Mounting parts and accessories