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Positioners
Attachment, Options, Explosion Protection, Operation, Diagnostics, Safety
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3
Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Explosion protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Positioners – Overview
4
OUR EXPERTISE FOR YOU
Competence in valve engineering
Founded in 1907, SAMSON has since become a
worldwide leader in the manufacture of expertly
engineered control valves, positioners and other
valve accessories for all industrial processes .
SAMSON has over 50 subsidiaries, amongst them
noted manufacturers of special valves, such as
AIR TORQUE, CERA SYSTEM, LEUSCH, PFEIFFER,
RINGO VÁLVULAS, STARLINE, and VETEC . We
are represented in over 80 countries to assist our
customers on all continents .
SAMSON provides you with valve engineering
and customer service from a single source:
We support you in planning new installations
or overhauling and expanding existing plants .
We assist you in selecting and configuring the
right equipment to suit your control requirements .
We are close at hand to support your life cycle
management, from installation and start-up to
maintenance and service .
At SAMSON, we can draw on more than 100
years of experience and expertise in control
valve engineering. In 1957, we launched the first
pneumatic positioner onto the German market .
Since then, we have enhanced and perfected our
positioners, their attachment and their interaction
with a wide variety of valve models and valve
accessories .
5
The SMART VALVE INTEGRATION CENTER
(SVIC), founded in 2009 at our headquarters
in Frankfurt, works in close cooperation with
the R&D and test facilities departments to
provide the foundations for optimal integration
of smart SAMSON devices into process control,
engineering and asset management systems .
The center performs integration tests of smart
devices as well as system tests according to
customer specifications in cooperation with
control system manufacturers . We pass on
the knowledge we acquire to our customers in
hands-on training seminars .
The components used are tested concerning their
start-up and interoperability on plant setups in
laboratory conditions . Additionally, application-
specific solutions and field device improvements
are developed .
6
FROM ANALOG TO DIGITAL
1935 – A solenoid valve and a temperature
controller are the first electrical devices developed
by SAMSON .
1957 – The first pneumatic positioner, STP 703, is
launched onto the German market .
1973 – SAMSON introduces an i/p and p/i
converter functioning as the linking element
between pneumatics and electronics .
1974 – Production of the first electropneumatic
positioner, the Type 3762, starts.
1986 – SAMSON participates in a joint project
set up by different industrial companies to
define a fieldbus for automation later to become
PROFIBUS .
1987 – Integral positioner attachment with inter-
nal air routing is introduced . It sets a benchmark
in control valve engineering that operators still
benefit from today.
1989 – The world's first prototype of a fieldbus
positioner is presented at INTERKAMA and the
ISA show (Philadelphia, USA) .
1995 – Production of the digital Type 3780 Posi-
tioner with HART® communication starts .
1999 – TROVIS-VIEW, a user interface designed
to configure and operate various electronic
SAMSON products, is introduced .
2000 – The Type 3787 Positioner with
FOUNDATION™ fieldbus communication helps
strengthen our sales activities in North America,
Asia and the Middle East .
2001 – The Series 3730 Positioners with hybrid
technology and integrated valve diagnostics are
presented at INTERKAMA .
2001 – A leakage sensor to monitor seat leakage
is introduced .
2004 – The Series 3730 Positioners are certified
in accordance with IEC 61508 for use in safety-
instrumented systems up to SIL 3.
2006 – News version with partial stroke testing
for safety-instrumented systems are added to the
Series 3730.
2006 – Production of flameproof Series 3731
Positioners starts .
2008 – The enhanced EXPERTplus valve
diagnostics allow extensive diagnostic functions
to be added to the Series 3730 and 3731.
7
2011 – Type 3730-4 is the first PROFIBUS field
unit in which the ID number can be adapted . This
allows PROFIBUS-PA field devices to be replaced
without having to shut down the control system .
2011 – Type 3730-6 with HART® communication
sets new standards in predictive valve diagnostics
with its integrated pressure sensors .
2012 – SAMSON is partner of the 75th NAMUR
general meeting, which highlights modern final
control elements in the automation of processes .
2015 – The new TROVIS SAFE series is added to
SAMSON's range of positioners . The positioners
marketed under the registered trademark TROVIS
SAFE have been optimized for use with on/off
valves in safety-instrumented systems and are
certified to comply with SIL requirements.
2016 – SAMSON introduces the new positioner
generation TROVIS 3793 at the Valve World
Expo 2016. These positioners have a modular
design . Their high air capacity make suitable
them for mounting to large actuators .
2018 – SAMSON introduces two new positioners
from the Series 3730 – TROVIS 3730-1 and
TROVIS 3730-3 – at the 2018 Valve World Expo.
The new positioners for 4 to 20 mA applications
combine the latest technological developments
with the proven device base known from the Type
3730-1 and Type 3730-3 predecessor models.
2016 - Series 3793
2001 - Series 3730
1957 - STP 703
8
ATTACHMENT
Positioner attachment is a complex matter since
various mounting interfaces, actuator motions
and manufacturer-specific applications exist.
The wide range of high-grade mounting kits al-
lows our positioners to be mounted on many
different kinds of linear and rotary actuators by
various manufacturers .
Besides the standard mounting kits (IEC 60534-1,
VDI/VDE 3847, VDI/VDE 3845) and SAMSON's
integral attachment, mounting kits for actuators
by other manufacturers are available . They
all share the same benefits: they are simple to
mount, particularly rugged and durable . The
mounting kits modified by SAMSON to meet
customer requirements guarantee problem-free
operation of the positioners .
Easy and universal attachment
Attachment
Type
Series
TROVIS SAFE
3730-0
3766
3767
4763
4765
3725
3730
3731
3793
3730-6
3731-3
3793
Attachment to linear actuators
– SAMSON integral
attachment
– IEC 60534-6-1
– VDI/VDE 3847-1
Attachment to rotary
actuators
– According to VDI/
VDE 3845
– VDI/VDE 3847-2
9
1
2
3
4
1
1
2
3
4
Integral attachment introduced by SAMSON is
the best solution for small and medium-sized
actuators as far as safety, cost-effectiveness,
quality and a long service life are concerned . A
rugged, compact valve unit is created by directly
attaching the positioner to the actuator yoke . All
moving parts are enclosed and the travel linkage
is protected against unintentional adjustments
during transportation, installation and operation .
An additional benefit is provided by the internal
air routing within the actuator yoke . As a result,
no expensive external hook-up between the
positioner and actuator is required .
On top of this, the purging of the actuator yoke
with positioner exhaust air protects the travel link-
age from climatic conditions and corrosive ambi-
ent air often present in industrial environments .
A closer look at SAMSON integral attachment
Optional purging with positioner exhaust air
Seals in all gaps
Vent plug ensures IP rating up to IP 66
Space sealed on both sides
10
OPTIONS
Control valves are subject
to numerous
requirements that vary considerably depending
on the application and site of installation . In
cases where the standard positioner version
cannot meet the control demands, SAMSON
positioners can be fitted with an extensive range
of accessories . The integration of additional
components into the positioner housing minimizes
the need to mount accessories and the complexity
of the required hook-up . As a result, the cost of
installation is reduced while the operational
reliability of the valve is increased .
Options for more performance
Options
Type
Series
TROVIS SAFE
3730-0
3766
3767
4763
4765
3725
3730
3731
3793
3730-6
3731-3
3793
Software limit switches
1) 1)
Inductive limit switch
1)
Fault alarm output
1) 1)
Solenoid valve
1)
Forced venting
1)
Binary input
1)
Analog position transmitter
1) 1)
Leakage sensor
1)
2)
2)
External position sensor
1)
2)
2)
Analog input for external
travel sensor
1)
1) Not for all versions . See list at the back .
2) In preparation
11
Software limit switches – These switches
signalize that the valve has reached one of the
two adjustable limits, e .g . OPEN or CLOSED
position or an intermediate position .
Inductive limit switch – This switch indicates the
end position even after a power failure in a safe-
ty-instrumented system .
Fault alarm output – Alarms generated by the
EXPERTplus valve diagnostics are issued at the
fault alarm output as a condensed state .
Solenoid valve and forced venting – These op-
tions guarantee emergency venting of the actua-
tor in compliance with IEC 61508 up to SIL 3. As
a result, the control valve is moved to the fail-safe
position determined by the actuator .
Binary input – Certain diagnostic functions can
be started by the binary input, e .g . data logging
or partial stroke testing or the valve is moved to
the fail-safe position .
Analog position transmitter – The analog posi-
tion transmitter provides a 4 to 20 mA signal for
position feedback indicating the current travel or
opening angle of the actuator .
Leakage sensor – This sensor enables positioners
with integrated diagnostics to detect seat leakage
or trigger an alarm after a limit violation .
External position sensor – This sensor allows the
positioner to be mounted away from the valve
(e .g . on a wall) . It can be used when the external
conditions are unsuitable for the positioner, e .g .
extremely high temperatures or increased vibra-
tions at the valve .
Analog input (4 to 20 mA) – The analog input
allows conventional linear or angle position sen-
sors issuing a 4 to 20 mA signal to be connected
to the positioners .
A closer look at options
12
EXPLOSION PROTECTION
The formation of an explosive atmosphere cannot
be ruled out in most chemical and petrochemical
processes . In this case, the plant components must
meet special explosion protection requirements .
This also applies to positioners used in hazard-
ous areas . For the use in explosive atmospheres,
we offer positioners in type of protection intrinsic
safety, in non-sparking, protection by enclosure,
and flameproof enclosures.
It is possible to operate SAMSON positioners on
site using their rotary pushbutton without posing
any risk .
Despite the increased requirements placed on
the housing, this also applies to positioners in
flameproof enclosures. They are designed to
withstand an internal explosion without igniting
the explosive atmosphere outside . Various
installation methods make it easier to wire the
positioner:
Direct cable entry with terminal compartment
in flameproof enclosure (Ex d)
Indirect cable entry with terminal compartment
designed for increased safety (Ex e)
Conduit system with factory-sealed terminal
compartment
Reliable safety
Explosion protection
Type
Series
TROVIS SAFE
3730-0
3766
3767
4763
4765
3725
3730
3731
3793
3730-6
3731-3
3793
Intrinsic safety (Ex i)
1)
1)
5)
Non-sparking equipment
1)
1)
Protection by enclosure
Flameproof enclosure
2) 3) 2) 2) 3)
2) 4)
2)
1) Purely pneumatic positioner
2) Flameproof enclosure in combination with Type 3770 Field Barrier
3) Flameproof enclosure in combination with Type 6116 i/p Converter
4) Not for all versions . See list at the back .
5) Type 3731-5 only
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Positioners cannot be operated in explosive
atmospheres until they have been tested and
certified by a notified body. International rules
on explosion protection are similar . However,
national regulations still differ .
SAMSON positioners have the globally accepted
IECEx certification. The high level of safety
provided by the positioners is also certified by
various national and international authorities
responsible for markets in North and South
America, Asia, Australia and Europe .
A closer look at international certification
GOST-R Ex
JIS
KC
NEPSI
CCoE
IECEx
CSA
FM/UL
INMETRO
ATEX
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OPERATION
At SAMSON, we focus on the user: automatic
start-up and a proven operating structure in
all our digital positioners as well as numerous
details, such as initialization at the push of a
button, convenient operation using one rotary
pushbutton, a display that is easy to read and
whose reading direction can be turned by 180°,
contribute to making start-up and operation
easier for the user .
Our positioners are easily adapted to the control
task at hand – either on site or, in Series 3730,
3731, and 3793 Positioners with diagnostics, on
a computer using our TROVIS-VIEW software .
Intuitive operation
Operation
Type
TROVIS
TROVIS SAFE
3725
3730-1
3730-2
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
Start-up
– Automatic initialization
– Autotuning
– Monitoring
Operating controls
– Initialization key
– Code-based display
– Plain-text display
– Rotary pushbutton
– Capacitive keys
– TROVIS-VIEW
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TROVIS-VIEW provides a uniform user interface
that allows users to configure and parameterize
various SAMSON devices using device-specific
database modules .
Function and parameter settings can be saved to
files, archived and transmitted to the positioner
over an interface adapter . In online mode, pro-
cess data of the connected positioner and the
device status can be displayed according to a
color code system as defined in NAMUR Recom-
mendation NE 107.
Extensive documentation to monitor the valve's
condition is achieved by logging positioner data .
For example, the Trend-Viewer function tracks
process data over time .
A start-up wizard is included in the software for
almost all Series 3730 Positioners which guides
the user through the process of setting up the
positioner step by step .
A closer look at the TROVIS-VIEW software
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OPERATION
Full integration of the control valve into process
control and asset management systems allows
the full use of the positioner functions, such as
status logging and diagnostics . In addition, this
manufacturer-independent integration enables
the control valve to be configured and started up
from a central location .
Our Series 3730 and 3731 Positioners support
standard digital interfaces and protocols, such
as HART®, PROFIBUS® PA and FOUNDATION™
fieldbus. Numerous device integration files for
engineering tools and systems are available for
downloading .
Comprehensive system integration
Operation
Type
TROVIS
TROVIS SAFE
3725
3730-1
3730-2
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
Communication interface
– HART®
– PROFIBUS® PA
– FOUNDATION™ fieldbus
– SAMSON SSP interface
Integration using
– Device Type Manager (DTM)
– Device Description (eDD, eEDD)
– GSD files
8
7
9
4
5
6
1
2
3
0
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* : +
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17
Supported protocols, process control systems and integrations
Process control system, integrations*
Handheld devices*
Endress+Hauser - ControlCare, FieldCare
Emerson - DeltaV, AMS
Siemens - SIMATIC PCS 7, PDM
Yokogawa - CENTUM VP, PRM
ABB - Industrial IT
Honeywell - Experion PKS
*) Others on request
Emerson - 375/475
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DIAGNOSTICS
Due to the increasing automation of plants,
positioners are not only used on valves for
throttling service but on valves for on/off
applications as well . All SAMSON positioners
can handle classic analog control loops . TROVIS
SAFE positioners can also perform discrete
analysis of the set point as well as partial stroke
tests, which makes them particularly suitable for
mounting on on/off valves . Special positioner
versions can also take on the discrete analysis of
the set point of mounted on/off valves and partial
stroke testing The EXPERTplus valve diagnostics
are integrated into all positioner versions . They
record, save and analyze the data on the valve
condition . Critical valve conditions can be
detected by performing tests online while the
process is running as well as offline to provide
predictive maintenance . The condensed state
is issued at the fault alarm output . Detailed
test results and their analysis can be reviewed
using our TROVIS-VIEW operator interface or
using the protocols of HART®, PROFIBUS® PA or
FOUNDATION™ fieldbus.
Predictive maintenance
Diagnostics
Type
TROVIS
TROVIS SAFE
3725
3730-1
3730-2
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
EXPERTplus valve diagnostics
– Initialization result
– Measured process values
– Status messages, condensed
state, logging
– Tests to monitor operation in the
running process
– Tests to analyze the condition of
the entire control valve
– On/off analysis with partial
stroke test
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Monitoring functions keep track of the valve
while the process is running without disturbing it .
Valve signature/hysteresis test – These tests
form the basis for all diagnostics involving the
signal pressure . Such tests include detection of
air leakage in the pneumatics or an excessively
high or low supply pressure .
End position trend – This function allows an
alternating zero point or a creeping zero shift
due to seat and plug wear or dirt between the
seat and plug to be detected .
Statistical analysis – The statistical analysis of
process data pinpoints a changed manipulated
variable range, external or internal leakage
and an incorrect attachment of the positioner .
Data logger – Process conditions can be
monitored and documented by event-triggered
data logging .
Leakage detection – The use of an optional
leakage sensor allows the detection of seat
leakage inside the valve .
Diagnostics for on/off valves – The diagnostics
provide information on the valve end positions,
transit times and breakaway times of the valve
(TROVIS SAFE range) .
Diagnostic tests are performed to verify the re-
sults of the monitoring functions . These tests can
only partly be performed while the process is
running as the test has priority over the set point:
Static characteristic – This test determines the
valve dead band and provides information on
the friction hysteresis .
Partial stroke test/full stroke test – These tests
check the ability of the valve to move and assess
the dynamic control response over a partial
travel range or the full travel range .
A closer look at monitoring functions and diagnostic tests
20
SAFETY
We have added the new TROVIS SAFE series
to our range of positioners specially for use in
safety-instrumented systems. The SIL-certified
TROVIS SAFE positioners include partial stroke
testing . All diagnostic parameters necessary for
on/off valves are ready configured.
In safety-instrumented systems, the control valve
acts as a safety valve by opening or shutting off
the pipeline in an emergency . High demands
are placed on functional safety as outlined in the
IEC 61508 and IEC 61511 (SIL) standards.
Smart positioners with diagnostics can be used
to enhance or even replace the functions of so-
lenoid valves mounted on shut-off valve assem-
blies . They also increase the reliability, e .g . by
performing regular partial stroke tests .
Use of TROVIS SAFE positioners is possible on
observing the requirements of IEC 61511 and
the required hardware fault tolerance in safety-
instrumented systems up to SIL 2 (single device/
HFT = 0) and SIL 3 (redundant configuration/
HFT = 1).
Safety and reliability
Safety
Type
TROVIS
TROVIS SAFE
3725
3730-1
3730-2
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
Safety function over power
supply
1) 1) 1)
1)
Safety function over solenoid
valve
Safety function over forced
venting
1) 1)
1)
1) In preparation
21
4...20 mA
24 V
PLC
SPLC
Hazardous area
24 V
4...20 mA
PLC
SPLC
Hazardous area
Actuator and positioner with partial stroke test-
ing function and external solenoid valve – The
solenoid valve triggers the safety function . In the
event of a power failure, the actuator is vented
and the valve moved to its fail-safe position . The
positioner monitors the availability of the valve
on demand . Valve diagnostics allow malfunctions
to be detected and increase the plant availabil-
ity . A regularly performed partial stroke test can
prevent the valve from seizing up in its operating
position .
Safety-instrumented system with TROVIS SAFE positioner
Actuator and positioner with partial stroke
testing function – TROVIS SAFE positioners that
come with emergency venting have a shutdown
function according to IEC 61508. As a result,
they can implement the safety function as well
as testing the valve's proper functioning . The
actuator is vented at an input signal of 0 mA,
3.8 mA or 4.4 mA depending on the version.
An external solenoid valve is not required for
positioners with 'solenoid valve' or 'forced
venting' option suitable for safety-instrumented
systems .
22
POSITIONER MODELS
Types 4763 and 4765 – These positioners with
pneumatic or electric input signal have a simple
and compact design, making them particularly
insensitive to vibration. They use a flapper-nozzle
system which operates according to the force-
balance principle . They can be applied for both
normal and split-range operation .
Type 3766 – The pneumatic positioner is a true
classic among our positioners . It has a low air
consumption and uses a linear characteristic . It
has a fast and precise control response with a
low hysteresis .
Type 3767 – The electropneumatic positioner
is identical to the Type 3766, except for the de-
pendable i/p converter . Positioner features, such
as a low load and the ingeniously simple drop of
silicone oil to dampen vibrations in the i/p con-
verter, have contributed to the continual success
of our electropneumatic positioners .
23
Type 3725 – This positioner is a basic digital po-
sitioner for processes with high control demands
that do not require communication with a process
control system or valve diagnostics .
The positioner with a deliberately simple design
is operated using capacitive keys . Navigation
within the menu on the display has been adopted
from other proven SAMSON products, e .g .
Series 3730 Positioners.
A non-contact sensor system records the valve
position and guarantees precise control . Auto-
tuning to calibrate the parameters to the valve
is performed during automated initialization of
the positioner .
The positioner housing is made of UV-resistant
plastic .
24
POSITIONER MODELS
Series 3730/3731 – The Series 3730 Positioners
share the same platform: housing, travel linkage
and pneumatic components are identical . Ac-
cordingly, these positioners have the same high
air output capacity . The versions within this series
have varying electronic components and, as a
result, different features for ease of operation,
functions, communication and diagnostics .
While the Type 3730-0 gets by without a micro-
processor and is reduced to the essential func-
tions, the Type 3730-1 and higher models use
digital signal processing for automatic start-up .
The Series 3731 Positioners with flameproof en-
closure have largely the same components inside
and use the same hybrid technology as the cor-
responding positioners of the Series 3730. They
are based on the same model platform, which
allows favorable integral attachment, and use the
same mounting kits for linear and rotary actua-
tors .
The main difference lies in the flameproof en-
closure used for Series 3731 Positioners. Despite
the enclosure, the positioner can still be easily
operated on site using a rotary pushbutton and
the readings that can be turned to suit the mount-
ing position can be viewed on the large display .
25
Series 3793 – These innovative electropneumatic
positioners of the latest generation round off our
product range .
The Series 3793 Positioners use the proven
mounting kits and have a modular design .
High air capacities and variable outputs, e .g .
double-acting control, can be achieved by using
pneumatic modules that can be exchanged or
retrofitted.
Optional additional functions, such as limit
switches, position transmitters, or binary inputs
and outputs, can be added to the positioners on
site as option modules . This allows positioners to
be easily adapted to customer requirements at
any time .
Extensive diagnostics, communication using the
HART® protocol, ease of operation with a multi-
lingual plain-text display, and a protected non-
contact sensor system contribute to making the
positioner a top-of-the-range device .
26
1) With Type 6116
2) With Type 3770
Type
3766
3767
4763
4765
3725
3730-0
3730-1
3730-2
Input/output signal
p/p
i/p
i/p
p/p
i/p
i/p
i/p
i/p
Attachment
– SAMSON integral attachment
– IEC 60534-6-1
– VDI/VDE 3847-1
– VDI/VDE 3845
– VDI/VDE 3847-2
Options
– Software limit switches
– Inductive limit switch
– Fault alarm output
– Solenoid valve
– Forced venting
– Binary input
– Analog position transmitter
– Leakage sensor
– External position sensor
– Analog input for external travel sensor
Explosion protection
– Intrinsic safety
– Non-sparking equipment
– Protection by enclosure
– Flameproof enclosure
1)
2)
2)
1)
2)
2)
Operation
– Automatic initialization
– Autotuning
– Monitoring
– Initialization key
– Code-based display
– Plain-text display
– Rotary pushbutton
– Capacitive keys
– TROVIS-VIEW
– Communication interface
Diagnostics
– EXPERTplus
Safety
– Emergency shutdown
OVERVIEW
27
TROVIS
TROVIS SAFE
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
2)
2)
2)
2)
2)
in preparation
in preparation
in preparation
in preparation
Standard Option
POSITIONERS
2019-08 · WA310 EN
SAMSON AKTIENGESELLSCHAFT
Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
E-mail: samson@samsongroup.com · Internet: www.samsongroup.com
SAMSON AT A GLANCE
PRODUCTION SITES
– SAMSON Germany, Frankfurt, established 1916
Total plot and production area: 150,000 m²
– SAMSON France, Lyon, established 1962
Total plot and production area: 23,400 m²
– SAMSON Turkey, Istanbul established 1984
Total plot and production area: 11,053 m²
– SAMSON USA, Baytown, TX, established 1992
Total plot and production area: 9,200 m²
– SAMSON China, Beijing, established 1998
Total plot and production area: 10,138 m²
– SAMSON India, Pune district, established 1999
Total plot and production area: 18,000 m²
– SAMSON Russia, Rostov-on-Don, established 2015
Total plot and production area: 5,000 m²
– SAMSON AIR TORQUE, Bergamo, Italy
Total plot and production area: 27,684 m²
– SAMSON CERA SYSTEM, Hermsdorf, Germany
Total plot and production area: 14,700 m²
– SAMSON KT-ELEKTRONIK, Berlin, Germany
Total plot and production area: 1,060 m²
– SAMSON LEUSCH, Neuss, Germany
Total plot and production area: 18,400 m²
– SAMSON PFEIFFER, Kempen, Germany
Total plot and production area: 35,400 m²
– SAMSON RINGO, Zaragoza, Spain
Total plot and production area: 18,270 m²
– SAMSON SED, Bad Rappenau, Germany
Total plot and production area: 10,370 m²
– SAMSON STARLINE, Bergamo, Italy
Total plot and production area: 26,409 m²
– SAMSON VDH PRODUCTS, the Netherlands
– SAMSON VETEC, Speyer, Germany
Total plot and production area: 27,090 m²
STAFF
– Worldwide 4,300
– Europe 3,300
– Asia 500
– Americas 200
– Frankfurt am Main, Germany 1,800
MARKETS
– Chemicals and petrochemicals
– Power and energy
– District heating and cooling,
building automation
– General industry
– Industrial gases
– Food and beverages
– Metallurgy and mining
– Oil and gas
– Pharmaceuticals and biotechnology
– Marine equipment
– Water and wastewater
– Pulp and paper
PRODUCTS
– Valves
– Self-operated regulators
– Actuators
– Valve accessories
– Signal converters
– Controllers and automation systems
– Sensors and thermostats
– Digital solutions
SALES SITES
– More than 50 subsidiaries
in over 40 countries
– More than 200 representatives
Positioners
Attachment, Options, Explosion Protection, Operation, Diagnostics, Safety
2
3
Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Explosion protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Positioners – Overview
4
OUR EXPERTISE FOR YOU
Competence in valve engineering
Founded in 1907, SAMSON has since become a
worldwide leader in the manufacture of expertly
engineered control valves, positioners and other
valve accessories for all industrial processes .
SAMSON has over 50 subsidiaries, amongst them
noted manufacturers of special valves, such as
AIR TORQUE, CERA SYSTEM, LEUSCH, PFEIFFER,
RINGO VÁLVULAS, STARLINE, and VETEC . We
are represented in over 80 countries to assist our
customers on all continents .
SAMSON provides you with valve engineering
and customer service from a single source:
We support you in planning new installations
or overhauling and expanding existing plants .
We assist you in selecting and configuring the
right equipment to suit your control requirements .
We are close at hand to support your life cycle
management, from installation and start-up to
maintenance and service .
At SAMSON, we can draw on more than 100
years of experience and expertise in control
valve engineering. In 1957, we launched the first
pneumatic positioner onto the German market .
Since then, we have enhanced and perfected our
positioners, their attachment and their interaction
with a wide variety of valve models and valve
accessories .
5
The SMART VALVE INTEGRATION CENTER
(SVIC), founded in 2009 at our headquarters
in Frankfurt, works in close cooperation with
the R&D and test facilities departments to
provide the foundations for optimal integration
of smart SAMSON devices into process control,
engineering and asset management systems .
The center performs integration tests of smart
devices as well as system tests according to
customer specifications in cooperation with
control system manufacturers . We pass on
the knowledge we acquire to our customers in
hands-on training seminars .
The components used are tested concerning their
start-up and interoperability on plant setups in
laboratory conditions . Additionally, application-
specific solutions and field device improvements
are developed .
6
FROM ANALOG TO DIGITAL
1935 – A solenoid valve and a temperature
controller are the first electrical devices developed
by SAMSON .
1957 – The first pneumatic positioner, STP 703, is
launched onto the German market .
1973 – SAMSON introduces an i/p and p/i
converter functioning as the linking element
between pneumatics and electronics .
1974 – Production of the first electropneumatic
positioner, the Type 3762, starts.
1986 – SAMSON participates in a joint project
set up by different industrial companies to
define a fieldbus for automation later to become
PROFIBUS .
1987 – Integral positioner attachment with inter-
nal air routing is introduced . It sets a benchmark
in control valve engineering that operators still
benefit from today.
1989 – The world's first prototype of a fieldbus
positioner is presented at INTERKAMA and the
ISA show (Philadelphia, USA) .
1995 – Production of the digital Type 3780 Posi-
tioner with HART® communication starts .
1999 – TROVIS-VIEW, a user interface designed
to configure and operate various electronic
SAMSON products, is introduced .
2000 – The Type 3787 Positioner with
FOUNDATION™ fieldbus communication helps
strengthen our sales activities in North America,
Asia and the Middle East .
2001 – The Series 3730 Positioners with hybrid
technology and integrated valve diagnostics are
presented at INTERKAMA .
2001 – A leakage sensor to monitor seat leakage
is introduced .
2004 – The Series 3730 Positioners are certified
in accordance with IEC 61508 for use in safety-
instrumented systems up to SIL 3.
2006 – News version with partial stroke testing
for safety-instrumented systems are added to the
Series 3730.
2006 – Production of flameproof Series 3731
Positioners starts .
2008 – The enhanced EXPERTplus valve
diagnostics allow extensive diagnostic functions
to be added to the Series 3730 and 3731.
7
2011 – Type 3730-4 is the first PROFIBUS field
unit in which the ID number can be adapted . This
allows PROFIBUS-PA field devices to be replaced
without having to shut down the control system .
2011 – Type 3730-6 with HART® communication
sets new standards in predictive valve diagnostics
with its integrated pressure sensors .
2012 – SAMSON is partner of the 75th NAMUR
general meeting, which highlights modern final
control elements in the automation of processes .
2015 – The new TROVIS SAFE series is added to
SAMSON's range of positioners . The positioners
marketed under the registered trademark TROVIS
SAFE have been optimized for use with on/off
valves in safety-instrumented systems and are
certified to comply with SIL requirements.
2016 – SAMSON introduces the new positioner
generation TROVIS 3793 at the Valve World
Expo 2016. These positioners have a modular
design . Their high air capacity make suitable
them for mounting to large actuators .
2018 – SAMSON introduces two new positioners
from the Series 3730 – TROVIS 3730-1 and
TROVIS 3730-3 – at the 2018 Valve World Expo.
The new positioners for 4 to 20 mA applications
combine the latest technological developments
with the proven device base known from the Type
3730-1 and Type 3730-3 predecessor models.
2016 - Series 3793
2001 - Series 3730
1957 - STP 703
8
ATTACHMENT
Positioner attachment is a complex matter since
various mounting interfaces, actuator motions
and manufacturer-specific applications exist.
The wide range of high-grade mounting kits al-
lows our positioners to be mounted on many
different kinds of linear and rotary actuators by
various manufacturers .
Besides the standard mounting kits (IEC 60534-1,
VDI/VDE 3847, VDI/VDE 3845) and SAMSON's
integral attachment, mounting kits for actuators
by other manufacturers are available . They
all share the same benefits: they are simple to
mount, particularly rugged and durable . The
mounting kits modified by SAMSON to meet
customer requirements guarantee problem-free
operation of the positioners .
Easy and universal attachment
Attachment
Type
Series
TROVIS SAFE
3730-0
3766
3767
4763
4765
3725
3730
3731
3793
3730-6
3731-3
3793
Attachment to linear actuators
– SAMSON integral
attachment
– IEC 60534-6-1
– VDI/VDE 3847-1
Attachment to rotary
actuators
– According to VDI/
VDE 3845
– VDI/VDE 3847-2
9
1
2
3
4
1
1
2
3
4
Integral attachment introduced by SAMSON is
the best solution for small and medium-sized
actuators as far as safety, cost-effectiveness,
quality and a long service life are concerned . A
rugged, compact valve unit is created by directly
attaching the positioner to the actuator yoke . All
moving parts are enclosed and the travel linkage
is protected against unintentional adjustments
during transportation, installation and operation .
An additional benefit is provided by the internal
air routing within the actuator yoke . As a result,
no expensive external hook-up between the
positioner and actuator is required .
On top of this, the purging of the actuator yoke
with positioner exhaust air protects the travel link-
age from climatic conditions and corrosive ambi-
ent air often present in industrial environments .
A closer look at SAMSON integral attachment
Optional purging with positioner exhaust air
Seals in all gaps
Vent plug ensures IP rating up to IP 66
Space sealed on both sides
10
OPTIONS
Control valves are subject
to numerous
requirements that vary considerably depending
on the application and site of installation . In
cases where the standard positioner version
cannot meet the control demands, SAMSON
positioners can be fitted with an extensive range
of accessories . The integration of additional
components into the positioner housing minimizes
the need to mount accessories and the complexity
of the required hook-up . As a result, the cost of
installation is reduced while the operational
reliability of the valve is increased .
Options for more performance
Options
Type
Series
TROVIS SAFE
3730-0
3766
3767
4763
4765
3725
3730
3731
3793
3730-6
3731-3
3793
Software limit switches
1) 1)
Inductive limit switch
1)
Fault alarm output
1) 1)
Solenoid valve
1)
Forced venting
1)
Binary input
1)
Analog position transmitter
1) 1)
Leakage sensor
1)
2)
2)
External position sensor
1)
2)
2)
Analog input for external
travel sensor
1)
1) Not for all versions . See list at the back .
2) In preparation
11
Software limit switches – These switches
signalize that the valve has reached one of the
two adjustable limits, e .g . OPEN or CLOSED
position or an intermediate position .
Inductive limit switch – This switch indicates the
end position even after a power failure in a safe-
ty-instrumented system .
Fault alarm output – Alarms generated by the
EXPERTplus valve diagnostics are issued at the
fault alarm output as a condensed state .
Solenoid valve and forced venting – These op-
tions guarantee emergency venting of the actua-
tor in compliance with IEC 61508 up to SIL 3. As
a result, the control valve is moved to the fail-safe
position determined by the actuator .
Binary input – Certain diagnostic functions can
be started by the binary input, e .g . data logging
or partial stroke testing or the valve is moved to
the fail-safe position .
Analog position transmitter – The analog posi-
tion transmitter provides a 4 to 20 mA signal for
position feedback indicating the current travel or
opening angle of the actuator .
Leakage sensor – This sensor enables positioners
with integrated diagnostics to detect seat leakage
or trigger an alarm after a limit violation .
External position sensor – This sensor allows the
positioner to be mounted away from the valve
(e .g . on a wall) . It can be used when the external
conditions are unsuitable for the positioner, e .g .
extremely high temperatures or increased vibra-
tions at the valve .
Analog input (4 to 20 mA) – The analog input
allows conventional linear or angle position sen-
sors issuing a 4 to 20 mA signal to be connected
to the positioners .
A closer look at options
12
EXPLOSION PROTECTION
The formation of an explosive atmosphere cannot
be ruled out in most chemical and petrochemical
processes . In this case, the plant components must
meet special explosion protection requirements .
This also applies to positioners used in hazard-
ous areas . For the use in explosive atmospheres,
we offer positioners in type of protection intrinsic
safety, in non-sparking, protection by enclosure,
and flameproof enclosures.
It is possible to operate SAMSON positioners on
site using their rotary pushbutton without posing
any risk .
Despite the increased requirements placed on
the housing, this also applies to positioners in
flameproof enclosures. They are designed to
withstand an internal explosion without igniting
the explosive atmosphere outside . Various
installation methods make it easier to wire the
positioner:
Direct cable entry with terminal compartment
in flameproof enclosure (Ex d)
Indirect cable entry with terminal compartment
designed for increased safety (Ex e)
Conduit system with factory-sealed terminal
compartment
Reliable safety
Explosion protection
Type
Series
TROVIS SAFE
3730-0
3766
3767
4763
4765
3725
3730
3731
3793
3730-6
3731-3
3793
Intrinsic safety (Ex i)
1)
1)
5)
Non-sparking equipment
1)
1)
Protection by enclosure
Flameproof enclosure
2) 3) 2) 2) 3)
2) 4)
2)
1) Purely pneumatic positioner
2) Flameproof enclosure in combination with Type 3770 Field Barrier
3) Flameproof enclosure in combination with Type 6116 i/p Converter
4) Not for all versions . See list at the back .
5) Type 3731-5 only
13
Positioners cannot be operated in explosive
atmospheres until they have been tested and
certified by a notified body. International rules
on explosion protection are similar . However,
national regulations still differ .
SAMSON positioners have the globally accepted
IECEx certification. The high level of safety
provided by the positioners is also certified by
various national and international authorities
responsible for markets in North and South
America, Asia, Australia and Europe .
A closer look at international certification
GOST-R Ex
JIS
KC
NEPSI
CCoE
IECEx
CSA
FM/UL
INMETRO
ATEX
14
OPERATION
At SAMSON, we focus on the user: automatic
start-up and a proven operating structure in
all our digital positioners as well as numerous
details, such as initialization at the push of a
button, convenient operation using one rotary
pushbutton, a display that is easy to read and
whose reading direction can be turned by 180°,
contribute to making start-up and operation
easier for the user .
Our positioners are easily adapted to the control
task at hand – either on site or, in Series 3730,
3731, and 3793 Positioners with diagnostics, on
a computer using our TROVIS-VIEW software .
Intuitive operation
Operation
Type
TROVIS
TROVIS SAFE
3725
3730-1
3730-2
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
Start-up
– Automatic initialization
– Autotuning
– Monitoring
Operating controls
– Initialization key
– Code-based display
– Plain-text display
– Rotary pushbutton
– Capacitive keys
– TROVIS-VIEW
15
TROVIS-VIEW provides a uniform user interface
that allows users to configure and parameterize
various SAMSON devices using device-specific
database modules .
Function and parameter settings can be saved to
files, archived and transmitted to the positioner
over an interface adapter . In online mode, pro-
cess data of the connected positioner and the
device status can be displayed according to a
color code system as defined in NAMUR Recom-
mendation NE 107.
Extensive documentation to monitor the valve's
condition is achieved by logging positioner data .
For example, the Trend-Viewer function tracks
process data over time .
A start-up wizard is included in the software for
almost all Series 3730 Positioners which guides
the user through the process of setting up the
positioner step by step .
A closer look at the TROVIS-VIEW software
16
OPERATION
Full integration of the control valve into process
control and asset management systems allows
the full use of the positioner functions, such as
status logging and diagnostics . In addition, this
manufacturer-independent integration enables
the control valve to be configured and started up
from a central location .
Our Series 3730 and 3731 Positioners support
standard digital interfaces and protocols, such
as HART®, PROFIBUS® PA and FOUNDATION™
fieldbus. Numerous device integration files for
engineering tools and systems are available for
downloading .
Comprehensive system integration
Operation
Type
TROVIS
TROVIS SAFE
3725
3730-1
3730-2
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
Communication interface
– HART®
– PROFIBUS® PA
– FOUNDATION™ fieldbus
– SAMSON SSP interface
Integration using
– Device Type Manager (DTM)
– Device Description (eDD, eEDD)
– GSD files
8
7
9
4
5
6
1
2
3
0
# %&
>
<
* : +
.
_
A B CD
E F
G H I
J K L
M N O P Q R
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V W X
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17
Supported protocols, process control systems and integrations
Process control system, integrations*
Handheld devices*
Endress+Hauser - ControlCare, FieldCare
Emerson - DeltaV, AMS
Siemens - SIMATIC PCS 7, PDM
Yokogawa - CENTUM VP, PRM
ABB - Industrial IT
Honeywell - Experion PKS
*) Others on request
Emerson - 375/475
18
DIAGNOSTICS
Due to the increasing automation of plants,
positioners are not only used on valves for
throttling service but on valves for on/off
applications as well . All SAMSON positioners
can handle classic analog control loops . TROVIS
SAFE positioners can also perform discrete
analysis of the set point as well as partial stroke
tests, which makes them particularly suitable for
mounting on on/off valves . Special positioner
versions can also take on the discrete analysis of
the set point of mounted on/off valves and partial
stroke testing The EXPERTplus valve diagnostics
are integrated into all positioner versions . They
record, save and analyze the data on the valve
condition . Critical valve conditions can be
detected by performing tests online while the
process is running as well as offline to provide
predictive maintenance . The condensed state
is issued at the fault alarm output . Detailed
test results and their analysis can be reviewed
using our TROVIS-VIEW operator interface or
using the protocols of HART®, PROFIBUS® PA or
FOUNDATION™ fieldbus.
Predictive maintenance
Diagnostics
Type
TROVIS
TROVIS SAFE
3725
3730-1
3730-2
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
EXPERTplus valve diagnostics
– Initialization result
– Measured process values
– Status messages, condensed
state, logging
– Tests to monitor operation in the
running process
– Tests to analyze the condition of
the entire control valve
– On/off analysis with partial
stroke test
19
Monitoring functions keep track of the valve
while the process is running without disturbing it .
Valve signature/hysteresis test – These tests
form the basis for all diagnostics involving the
signal pressure . Such tests include detection of
air leakage in the pneumatics or an excessively
high or low supply pressure .
End position trend – This function allows an
alternating zero point or a creeping zero shift
due to seat and plug wear or dirt between the
seat and plug to be detected .
Statistical analysis – The statistical analysis of
process data pinpoints a changed manipulated
variable range, external or internal leakage
and an incorrect attachment of the positioner .
Data logger – Process conditions can be
monitored and documented by event-triggered
data logging .
Leakage detection – The use of an optional
leakage sensor allows the detection of seat
leakage inside the valve .
Diagnostics for on/off valves – The diagnostics
provide information on the valve end positions,
transit times and breakaway times of the valve
(TROVIS SAFE range) .
Diagnostic tests are performed to verify the re-
sults of the monitoring functions . These tests can
only partly be performed while the process is
running as the test has priority over the set point:
Static characteristic – This test determines the
valve dead band and provides information on
the friction hysteresis .
Partial stroke test/full stroke test – These tests
check the ability of the valve to move and assess
the dynamic control response over a partial
travel range or the full travel range .
A closer look at monitoring functions and diagnostic tests
20
SAFETY
We have added the new TROVIS SAFE series
to our range of positioners specially for use in
safety-instrumented systems. The SIL-certified
TROVIS SAFE positioners include partial stroke
testing . All diagnostic parameters necessary for
on/off valves are ready configured.
In safety-instrumented systems, the control valve
acts as a safety valve by opening or shutting off
the pipeline in an emergency . High demands
are placed on functional safety as outlined in the
IEC 61508 and IEC 61511 (SIL) standards.
Smart positioners with diagnostics can be used
to enhance or even replace the functions of so-
lenoid valves mounted on shut-off valve assem-
blies . They also increase the reliability, e .g . by
performing regular partial stroke tests .
Use of TROVIS SAFE positioners is possible on
observing the requirements of IEC 61511 and
the required hardware fault tolerance in safety-
instrumented systems up to SIL 2 (single device/
HFT = 0) and SIL 3 (redundant configuration/
HFT = 1).
Safety and reliability
Safety
Type
TROVIS
TROVIS SAFE
3725
3730-1
3730-2
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
Safety function over power
supply
1) 1) 1)
1)
Safety function over solenoid
valve
Safety function over forced
venting
1) 1)
1)
1) In preparation
21
4...20 mA
24 V
PLC
SPLC
Hazardous area
24 V
4...20 mA
PLC
SPLC
Hazardous area
Actuator and positioner with partial stroke test-
ing function and external solenoid valve – The
solenoid valve triggers the safety function . In the
event of a power failure, the actuator is vented
and the valve moved to its fail-safe position . The
positioner monitors the availability of the valve
on demand . Valve diagnostics allow malfunctions
to be detected and increase the plant availabil-
ity . A regularly performed partial stroke test can
prevent the valve from seizing up in its operating
position .
Safety-instrumented system with TROVIS SAFE positioner
Actuator and positioner with partial stroke
testing function – TROVIS SAFE positioners that
come with emergency venting have a shutdown
function according to IEC 61508. As a result,
they can implement the safety function as well
as testing the valve's proper functioning . The
actuator is vented at an input signal of 0 mA,
3.8 mA or 4.4 mA depending on the version.
An external solenoid valve is not required for
positioners with 'solenoid valve' or 'forced
venting' option suitable for safety-instrumented
systems .
22
POSITIONER MODELS
Types 4763 and 4765 – These positioners with
pneumatic or electric input signal have a simple
and compact design, making them particularly
insensitive to vibration. They use a flapper-nozzle
system which operates according to the force-
balance principle . They can be applied for both
normal and split-range operation .
Type 3766 – The pneumatic positioner is a true
classic among our positioners . It has a low air
consumption and uses a linear characteristic . It
has a fast and precise control response with a
low hysteresis .
Type 3767 – The electropneumatic positioner
is identical to the Type 3766, except for the de-
pendable i/p converter . Positioner features, such
as a low load and the ingeniously simple drop of
silicone oil to dampen vibrations in the i/p con-
verter, have contributed to the continual success
of our electropneumatic positioners .
23
Type 3725 – This positioner is a basic digital po-
sitioner for processes with high control demands
that do not require communication with a process
control system or valve diagnostics .
The positioner with a deliberately simple design
is operated using capacitive keys . Navigation
within the menu on the display has been adopted
from other proven SAMSON products, e .g .
Series 3730 Positioners.
A non-contact sensor system records the valve
position and guarantees precise control . Auto-
tuning to calibrate the parameters to the valve
is performed during automated initialization of
the positioner .
The positioner housing is made of UV-resistant
plastic .
24
POSITIONER MODELS
Series 3730/3731 – The Series 3730 Positioners
share the same platform: housing, travel linkage
and pneumatic components are identical . Ac-
cordingly, these positioners have the same high
air output capacity . The versions within this series
have varying electronic components and, as a
result, different features for ease of operation,
functions, communication and diagnostics .
While the Type 3730-0 gets by without a micro-
processor and is reduced to the essential func-
tions, the Type 3730-1 and higher models use
digital signal processing for automatic start-up .
The Series 3731 Positioners with flameproof en-
closure have largely the same components inside
and use the same hybrid technology as the cor-
responding positioners of the Series 3730. They
are based on the same model platform, which
allows favorable integral attachment, and use the
same mounting kits for linear and rotary actua-
tors .
The main difference lies in the flameproof en-
closure used for Series 3731 Positioners. Despite
the enclosure, the positioner can still be easily
operated on site using a rotary pushbutton and
the readings that can be turned to suit the mount-
ing position can be viewed on the large display .
25
Series 3793 – These innovative electropneumatic
positioners of the latest generation round off our
product range .
The Series 3793 Positioners use the proven
mounting kits and have a modular design .
High air capacities and variable outputs, e .g .
double-acting control, can be achieved by using
pneumatic modules that can be exchanged or
retrofitted.
Optional additional functions, such as limit
switches, position transmitters, or binary inputs
and outputs, can be added to the positioners on
site as option modules . This allows positioners to
be easily adapted to customer requirements at
any time .
Extensive diagnostics, communication using the
HART® protocol, ease of operation with a multi-
lingual plain-text display, and a protected non-
contact sensor system contribute to making the
positioner a top-of-the-range device .
26
1) With Type 6116
2) With Type 3770
Type
3766
3767
4763
4765
3725
3730-0
3730-1
3730-2
Input/output signal
p/p
i/p
i/p
p/p
i/p
i/p
i/p
i/p
Attachment
– SAMSON integral attachment
– IEC 60534-6-1
– VDI/VDE 3847-1
– VDI/VDE 3845
– VDI/VDE 3847-2
Options
– Software limit switches
– Inductive limit switch
– Fault alarm output
– Solenoid valve
– Forced venting
– Binary input
– Analog position transmitter
– Leakage sensor
– External position sensor
– Analog input for external travel sensor
Explosion protection
– Intrinsic safety
– Non-sparking equipment
– Protection by enclosure
– Flameproof enclosure
1)
2)
2)
1)
2)
2)
Operation
– Automatic initialization
– Autotuning
– Monitoring
– Initialization key
– Code-based display
– Plain-text display
– Rotary pushbutton
– Capacitive keys
– TROVIS-VIEW
– Communication interface
Diagnostics
– EXPERTplus
Safety
– Emergency shutdown
OVERVIEW
27
TROVIS
TROVIS SAFE
3730-3
3730-4
3730-5
3730-6
3731-3
3731-5
3730-1
3730-3
3793
3730-6
3731-3
3793
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
i/p
2)
2)
2)
2)
2)
in preparation
in preparation
in preparation
in preparation
Standard Option
POSITIONERS
2019-08 · WA310 EN
SAMSON AKTIENGESELLSCHAFT
Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
E-mail: samson@samsongroup.com · Internet: www.samsongroup.com
SAMSON AT A GLANCE
PRODUCTION SITES
– SAMSON Germany, Frankfurt, established 1916
Total plot and production area: 150,000 m²
– SAMSON France, Lyon, established 1962
Total plot and production area: 23,400 m²
– SAMSON Turkey, Istanbul established 1984
Total plot and production area: 11,053 m²
– SAMSON USA, Baytown, TX, established 1992
Total plot and production area: 9,200 m²
– SAMSON China, Beijing, established 1998
Total plot and production area: 10,138 m²
– SAMSON India, Pune district, established 1999
Total plot and production area: 18,000 m²
– SAMSON Russia, Rostov-on-Don, established 2015
Total plot and production area: 5,000 m²
– SAMSON AIR TORQUE, Bergamo, Italy
Total plot and production area: 27,684 m²
– SAMSON CERA SYSTEM, Hermsdorf, Germany
Total plot and production area: 14,700 m²
– SAMSON KT-ELEKTRONIK, Berlin, Germany
Total plot and production area: 1,060 m²
– SAMSON LEUSCH, Neuss, Germany
Total plot and production area: 18,400 m²
– SAMSON PFEIFFER, Kempen, Germany
Total plot and production area: 35,400 m²
– SAMSON RINGO, Zaragoza, Spain
Total plot and production area: 18,270 m²
– SAMSON SED, Bad Rappenau, Germany
Total plot and production area: 10,370 m²
– SAMSON STARLINE, Bergamo, Italy
Total plot and production area: 26,409 m²
– SAMSON VDH PRODUCTS, the Netherlands
– SAMSON VETEC, Speyer, Germany
Total plot and production area: 27,090 m²
STAFF
– Worldwide 4,300
– Europe 3,300
– Asia 500
– Americas 200
– Frankfurt am Main, Germany 1,800
MARKETS
– Chemicals and petrochemicals
– Power and energy
– District heating and cooling,
building automation
– General industry
– Industrial gases
– Food and beverages
– Metallurgy and mining
– Oil and gas
– Pharmaceuticals and biotechnology
– Marine equipment
– Water and wastewater
– Pulp and paper
PRODUCTS
– Valves
– Self-operated regulators
– Actuators
– Valve accessories
– Signal converters
– Controllers and automation systems
– Sensors and thermostats
– Digital solutions
SALES SITES
– More than 50 subsidiaries
in over 40 countries
– More than 200 representatives