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制御システム Formula Sound SENTRY MK2のPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Formula Sound SENTRY MK2 17 ページ。 Environmental noise control system
Formula Sound SENTRY MK2 にも：ユーザーマニュアル (11 ページ)

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Features

A choice of internal microphone (supplied factory fitted as standard) or external microphone (with

or without phantom power) may be selected. External microphone not included.

A choice of weighting filters (A, C, BASS) or no weighting filter (LIN)

Two sound level thresholds may be set, level 1 (default) and level 2. Switching from level 1 to

level 2 can be done on a switch or a timer

Security loop (eg for fire alarm or fire doors)

Anti-tamper microphone circuitry is incorporated with a front panel indicator.

Dual mains voltage operation is standard (internally switchable)

Case provides easy connections via cable entry knock-outs and screw terminals

Fire alarm interface

Pair of isolated relay contacts

Large display plus ability to power mains 60W warning light

Will drive low voltage or mains contactor

Slave display option

Remote reset option (push button or keyswitch)

Factory set to about 20 seconds just over limit before tripping

AT1 option allowing sound levels to be controlled.

General Detail

Any function that can be controlled by a relay or switch can be controlled by the Sentry. These may

include disconnecting loudspeakers, switching passive attenuators to reduce system volume or acting

as the trigger into an active attenuator system as well as operating a contactor to remove the power

supply.

The Sentry may also be used as a stand alone display unit indicating sound pressure levels or in

industrial applications to switch on warning lamps or illuminated signs advising the use of ear

defenders when the safe noise level is exceeded.

Our technical department is always on hand to advise when unusual applications are encountered.

ENVIRONMENTAL NOISE CONTROL SYSTEM

Sentry MK 2