2-wire electronic pressure switch
October 2002
Operator Interfaces, Switches & Relays
The One-Series family of 2-wire electronic pressure switches comprises a programmable pressure switch that provides a cost-effective solution for many applications that require both a switching and programmable information function, with feedback. The one single unit eliminates the need for a separate pressure transmitter. Available from Protea Automation Solutions, the series is all solid-state, with no moving parts, and suitable for Class 1, Division 1 and Zone 0 applications.
IAW (I Am Working) diagnostics in the series provide a 'live zero' analogous to the transmitter's 4-20 mA signal. The solid-state switch handles 12-30 V d.c. at 40 mA, and is designed for the discrete input to a PLC, DCS or low DC load. Both alarm and shutdown conditions are monitored and indicated. The switch typically reacts to process changes within 50 ms.
Settings can be programmed, adjustments made and status determined, all read on a large easy-to-read built-in digital display, There is a 100% adjustable set point, deadband and switch mode to compensate for process variations. The adjustments can be made without removing the instrument from the process, and no rewiring is required. A built-in memory captures and stores the maximum and minimum vales sensed and the offset and the factory calibration can be customised to match other instruments measuring the same process. Normal operation and all settings are restored in the event of a power failure.
For more information contact Jerry Smits, Protea Automation Solutions, 011 719 5700.
Further reading:
Rugged PoE switch built for industrial demands
Conical Technologies
Operator Interfaces, Switches & Relays
The Planet IGS-5225-8P4S-12V switch delivers all of this in a compact, rugged and highly efficient design, making it the switch of choice for engineers working in harsh environments.
Read more...
Human-centric control rooms: the quiet revolution in industrial operations
Iritron
Operator Interfaces, Switches & Relays
Iritron and Oculus are redefining how modern industries operate by combining their expertise to deliver next-generation integrated control and operating centre solutions across the region.
Read more...
Multi-touch panel generation in a smart design
Beckhoff Automation
Operator Interfaces, Switches & Relays
Following over 25 years of successful in-house panel production and 12 years of expertise in multi-touch design, Beckhoff is bringing out a new smart panel design, the Next multi-touch panel generation.
Read more...
State-of-the-art solution for robust industrial Ethernet connectivity
Vepac Electronics
Operator Interfaces, Switches & Relays
The 7015-4U2T-T1L unmanaged industrial Single Pair Ethernet (SPE) switch from Vepac is a state-of-the-art solution for robust industrial Ethernet connectivity.
Read more...
Simple, powerful illumination
Operator Interfaces, Switches & Relays
In applications needing quick, clear communication, the GS60 Pro Multicolour Guide Spotlight delivers powerful, easily configurable illumination and indication to reduce errors and improve productivity.
Read more...
Status display for conveying sensor, machine and device data
Turck Banner Southern Africa
Operator Interfaces, Switches & Relays
Enhance application accuracy and efficiency with the SD50 Status Display, which conveys sensor, machine and device data via text and multicolour LEDs.
Read more...
High performance, low complexity managed switches
Industrial Automation & Control (IAC)
Operator Interfaces, Switches & Relays
LEMUR Lite managed switches from Hirschmann deliver full Gigabit Ethernet and PoE/PoE+ support up to 180 W in a cost-optimised, compact design.
Read more...
Managed switches for seamless IT/OT convergence
Industrial Automation & Control (IAC)
Operator Interfaces, Switches & Relays
Hirschmann IT MAMMUTHUS managed switches enable seamless IT/OT convergence, providing robust security, high scalability and easy network management for industrial environments.
Read more...
Compact industrial switches
Operator Interfaces, Switches & Relays
The Hirschmann Bobcat Series delivers high-performance, compact industrial switches designed for real-time communication.
Read more...
Power and control platform for complex applications
Schneider Electric South Africa
Operator Interfaces, Switches & Relays
Schneider Electric has unveiled the latest device in its PowerLogic range of products, the PowerLogic P7 digital power and control platform. This was designed to offer the best performance in complex and high-demand applications, and is based on a visualisation-ready, next-generation platform powered by a single configuration tool, the PowerLogic engineering suite.
Read more...
printer friendly version