Product category:
Machine Safety Components
News Release from: Able Instruments and Controls | Subject: One Series 4-Wire
Edited by the Engineeringtalk Editorial
Team on 25 August 2004
Four-wire switch offers simple safety
Able Instruments and Controls has the latest addition to United Electric's One Series electronic switch product line.
Able Instruments and Controls has the latest addition to United Electric's One Series electronic switch product line With available gauge pressure and RTD temperature sensors, this solid-state switch is specifically designed for local alarm and shutdown applications in harsh and hazardous locations
This article was originally published on Engineeringtalk on 8 Jul 2008 at 8.00am (UK)
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The fully programmable set point and deadband (hysteresis) provide an accurate and highly repeatable solid-state relay output, suitable for high cycle-rate switching of up to 280V AC at 10A.
The One Series 4-Wire is conveniently powered by 115V AC and is housed in a compact single enclosure, combining a large digital process display, easy two-button programming and all of the powerful features found in the One Series 2-Wire product - but with high-level VAC local switching capability.
Four wires are required for installation - two for power plus two for the switch output.
Advanced programmable features include offset and span adjustments, manual reset, switch delay and plugged port detection.
When enabled, these advanced features add unsurpassed control over varying process conditions - the perfect solution to those troublesome switch applications that require intelligent decision-making instrumentation.
Imagine an electronic switch that can monitor a process and switch in a mere 50ms, while detecting and reporting a clogged sensor condition.
If the application demands it, the electronics can be programmed to require manual reset (user intervention) and dampen the switch reaction for up to 2s, eliminating nuisance trips.
All these features are easy to activate and are included with the One Series 4-Wire, eliminating a complicated and costly PLC or DCS to implement them.
Applications include pump control, compressor protection, lube oil monitoring and safety interlocks.
The One Series 4-Wire is suitable for applications wherever an easy-to-use and self-diagnostic switch is required to provide powerful features and peace of mind that it will work at that critical moment.
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