Limit Alarm Trips and Switches

Apply inputs from temperature sensors or transmitters located in hazardous areas without the need of a costly intrinsically-safe barrier. Our limit alarm trips and switches provide on/off control, warn of unwanted process conditions, alarm on rate-of-change and provide emergency shutdown.

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  • SPA2-IS

    SPA2 IS

    The universal SPA2 IS Programmable Limit Alarm Trips provide on/off control, warn of unwanted process conditions, alarm on rate-of-change and provide emergency shutdown. Very versatile, they accept signal inputs from transmitters and temperature sensors that are located in hazardous areas where the method of protection implemented by the plant or facility is Intrinsic Safety. The SPA2 IS includes intrinsically-safe field connections which provide the necessary protection typically afforded by a galvanically isolated intrinsically-safe barrier.

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