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Alarm Systems
Transducer Range

24V / 48V Alarm Units
24V Prestart Alarm
Cross/Arrow Traffic Lights
I.S Traffic Control
I.S. Alarm Controller
I.S. Alarm Units
Light Activated Switch

I.S. Alarm Units

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Ringway Intrinsically Safe (I.S) Alarm Units are fully down line powered dual-state alarm enunciators. These states include a flashing red light with two-tone piezo alarm and solid green with no audio. The Alarm Units are designed to provide maximum audible and visual presence with minimal power consumption.
The alarm units are ideal for applications where line powered alarm indication is required over long distances (>3km) in hazardous areas and voltage drop in interconnecting cable becomes an issue. Ringway I.S. Alarm Units are very low maintenance devices. They are fully down line powered, containing no batteries. Competing units require internal battery backing and can only provide alarm indication for a limited duration or must limit the number of alarm units that may operate at any one time. All connected Ringway Alarm Units may be operated indefinitely without loss of performance.
Ringway I.S. Alarm Units will typically be used in conjunction with the Ringway I.S. Alarm Supply/Controller. The Alarm Units can be used anywhere that a single or dual state warning or permissive function is required. Because of the Ex ia rating it is particularly suited to underground coal mining applications.
Typical applications include conveyor pre-start alarm and remote isolation indication, evacuation systems, and remote security system monitoring.

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