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Series 500 Pneularm : Introduction
Pneularm is HNL's multipoint pneumatic annunciator sytstem available for both site mounting and panel mounting.
Pneularm annunciators are totally pneumatic in operation and contain no electrical items.
Series 500 is fail-safe in operation and provides both visual and audible signals in the event of an alarm.
Removal of an alarm point holding signal produces an alarm condition; the pneumatic audible alarm operates and the appropriate visual signal indicator flashes from black to red continuously until the alarm is accepted.
On ACCEPTANCE, the audible alarm is cancelled and the visual indicator shows continuous red. TEST causes all indicators to flash and the audible alarm to sound.
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Click picture for close up view |
Series 500 Pneularm
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Photograph shows 512-04-C00 -
an enclosed Front Panel Mounted Control Module with Test and Accept facilities (and Auto Reset).
See Series 842 for details of air horn.
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