Interface Technology for Process Industry Applications The K-System
With more than 70 years of experience and as the inventor of the intrinsic safety barrier, Pepperl+Fuchs is a leading manufacturer of interfaces for hazardous areas. Nowadays, Interface Technology from Pepperl+Fuchs is renowned and established in process industries all over the world. Technical expertise, application know-how, and a profound market knowledge ensure that interface technology from Pepperl+Fuchs is tailored to meet specific market requirements in every detail.
One highlight is the Pepperl+Fuchs K-System with its extensive product range, worldwide certifications, unique versatility, and easy handling. From simple isolator modules for safe signal transmission to highly functional components with numerous additional functions, the K-System portfolio offers modules and systems for a wide range of applications in hazardous areas—the best protection for people, plants, and the environment, as proven by millions of installed devices from North Sea platforms to clean room applications.
Isolated Barriers
A wide range of functions, easy maintenance, and high flexibility: this is what the K-System in particular stands for. Certified worldwide and unsurpassed in reliability, it guarantees maximum process reliability in numerous industries. The K-System is designed for mixed applications of Ex and non-Ex modules.
Its barrier function limits the energy fed into the intrinsically safe circuit. The galvanic isolation of the measuring and control circuits protects control systems and field devices from interference on the signal path, therefore ensuring the efficiency and availability of the system.
Signal Conditioners
The K-system is meticulously engineered to integrate an extensive array of signal conditioners. These signal conditioners play a crucial role in enabling the seamless transfer of signals between a control system and a designated safe area.
The ability to interface various components within a control system through such an organized structure is essential for ensuring operational reliability and safety. Therefore, the K-system is an invaluable asset for complex control environments requiring both high-performance and dependable signal transfer.
Technology Highlights
Wide Product Range for All Applications
- Modules for all signal types
- Numerous functions, from simple switch amplifiers to high performance devicesCost Savings
- Long service life due to lower power consumption, space-saving design, low heat dissipationEasy Maintenance
- Easy installation and replacement
- Internal diagnostic functionSafety on All Levels
- Choose from a complete SIL 3 portfolio for all signal types, analog and digital
Components and Customized Solutions
The extensive K-system portfolio offers the right solution for virtually any process industry requirement. It is perfectly tailored to applications in hazardous and non-hazardous areas—a highly flexible solution for countless challenges.
Why Interface Technology from Pepperl+Fuchs?
Built on Decades of Experience
As a pioneer in the field of intrinsic safety barriers, we build on decades of experience: Pepperl+Fuchs is the world's leading expert in the field of intrinsic safety.
Global Hazardous Area Expertise
Interface systems from Pepperl+Fuchs are certified worldwide and guarantee maximum process reliability for countless applications in numerous industries.
Largest Product Portfolio of Its Kind
Pepperl+Fuchs offers a comprehensive range of modules and systems for a wide variety of applications up to SIL 3.
K-System for Maximum Reliability
The K-System impresses with high availability due to low power loss, comprehensive international support, demand-oriented installation options, and unrivaled performance.
Thermal Power Plants: Direction of Rotation and Speed Monitoring Feedwater Pumps
Thermal Power Plants: Direction of Rotation and Speed Monitoring Feedwater Pumps
Task and boundary conditions: Galvanic isolation of control and field side in the safe area and ensuring feed water supply for steam generation.
Typical measuring and control tasks: Direction of rotation monitoring and speed monitoring
Typical isolating modules: Frequency converters of the K-System are also available as intrinsically safe devices for applications in hazardous areas.
Water Locks: End Position Control
ask and boundary conditions: Galvanic isolation of control and field side in the safe area. Ensuring that the lock gates are closed before water is admitted or discharged into the lock basin.
Typical measuring and control tasks: Feedback of the end position contact to the control system when the lock gates are closed.
Typical isolating modules: Switch amplifiers of the K-System are also available as intrinsically safe devices for applications in hazardous areas.
Ships: Optical and Acoustic Warning Devices
Task and boundary conditions: Galvanic isolation of control and field side in the safe area, safe switching on of warning devices in case of emergency, and safety integrity level of the signal circuit(s): SIL 3
Typical measuring and control tasks: Transmission of switching signals from the control system to the warning devices
Typical isolating modules: Safety relay with line fault transparency of the K-System
Pharmaceutics: Control of Valves in Large Plants
Task and boundary conditions: Control of the mass flow of API, hazardous area, safe signal transmission in large plants, different supply modes for a large number of different valves
Typical measuring and control tasks: Control of valves
Typical isolating modules: Intrinsically safe barrier of the K-System, high operating margin by output up to 45 mA (for safety-related applications: SIL3 ESD- and DCS systems that need LFT to get SIL level for DO cards/channels)
Sewage Treatment Plants: Speed Monitoring of Archimedean Screws
Task and boundary conditions: Load-dependent control of the Archimedean screws to keep the high energy consumption typical of these plants within limits
Typical measuring and control tasks: Speed monitoring
Typical isolating modules: Intrinsically safe K-System frequency converters. They are also available as isolators for applications in the safe area.
Biogas Production: Gas Analysis of Biogas and Landfill Gas
Task and boundary conditions: No constant composition of biogas produced in digesters; gas-fired power plants depend on constant supply of chemical energy; continuous analysis of gases, transmission of results to the control system
Typical measuring and control tasks: Transfer of gas quality measurements
Typical isolating modules: Intrinsically safe K-System transmitter power supply or isolators.
Life Sciences: Temperature Monitoring of Process Media
Task and boundary conditions: Temperature monitoring in vats with process media to limit the temperature, preventing unwanted decomposition or chemical reactions; potentially explosive atmospheres
Typical measuring and control tasks: Temperature monitoring
Typical isolating modules: Intrinsically safe K-System temperature converter with output of two configurable limit values or isolators for safe areas.
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