Pepperl+Fuchs has extended its range of products to include four new transmitter power supplies for intrinsically safe applications up to SIL3

The established transmitter power supplies from the K- and H-Systems by Pepperl+Fuchs have each been extended to include two additional modules that are designed for intrinsically safe applications up to SIL 3 according to EN61508. The advantage of these supplies is that only a single transmitter is required to construct an intrinsically safe signal circuit for SIL 3.

Previously for SIL 3 this was only possible using two separate inputs, both of which had to be monitored due to redundancy reasons. Internal diagnostic functions are also signaled via a single output and red LED. An additional advantage of the new modules is that prescribed test intervals can be extended for SIL 2 applications.

The new, single-channel KCD2-STC-Ex.1ES and KFD2-STC4-Ex1.ES transmitter power supplies are only 12.5 and 20 mm in width respectively and offer an active and passive 4 to 20 mA output signal as well as 1 to 5 V for the control level.

They also supplement the K- System, which incorporates about 150 different intrinsically safe isolator modules and signal conditioners. Assembled to the DIN mounting rail (35 mm) with power rail, the devices are able to provide information about internal diagnostics using a single failure signal.

The HiC2025ES and HiD2025ES transmitter power supplies were developed for the H- System, where the modules are mounted on pre-wired termination boards.

The space saving two modules are 12.5 and 18 mm wide respectively and are both compatible with existing termination boards in the system.

Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market.

For more than 60 years, continuous innovation, high quality products, and steady growth have guaranteed the company continued success. The company has two divisions. The Process Automation Division is a market leader in intrinsically safe explosion protection. It offers comprehensive, application-oriented system solutions, including customer-specific control cabinet solutions for the process industry.

A large portfolio of components is available from its various product lines: isolated barriers, Fieldbus infrastructure solutions, remote I/O systems, HART interface solutions, level measurement devices, purge and pressurisation systems, industrial monitors and HMI solutions, power supplies, separator alarm systems for oil and petrol separators, signalling equipment, lighting as well as emergency shutdown equipment and accessories.

With the invention of the inductive proximity sensor in 1958, the company set an important milestone in the development of automation technology.

Under the motto "Sensing your needs", customers benefit from tailor-made sensor solutions for factory automation.

The main target markets of the factory automation are machine and plant construction, the automotive industry, storage and material handling, printing and paper industry, packaging technology, process equipment, door, gate and elevator construction, mobile equipment, renewable energies.

The division offers a wide product range of industrial sensors whether it's inductive, photoelectric or ultrasonic sensors, rotary encoders, identification systems, barcodes, code readers for data-matrix-codes and vision sensors.

(Pepperl+Fuchs (India) Private Limited, Bangalore. Tel: 080-28378030. Fax: 91-80-28378031. Email: pa-info@in.pepperl-fuchs.com)