Positioners Attachment, Options, Explosion Protection, Operation, Diagnostics, Safety smopT in flow cootpoi

Positioners – Overview Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Explosion protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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 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,...

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...

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...

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...

ATTACHMENTEasy and universal 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 allows 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...

A closer look at SAMSON integral attachment 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. On top of this, the purging of the actuator yoke with positioner exhaust air protects the travel linkage from climatic conditions...

Options for more performance 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 . 1) Not for all versions...

A closer look at options 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. Analog position transmitter – The analog position transmitter provides a 4 to 20 mA signal for position feedback indicating the current travel or opening angle of the actuator. Inductive limit switch – This switch indicates the end position even after a power failure in a safety-instrumented system. Leakage sensor – This sensor enables positioners with integrated diagnostics to detect seat leakage or...

EXPLOSION PROTECTION Reliable safety 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 hazardous 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...

A closer look at international certification 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. NEPSI CCoE IECEx