Formula Sound SENTRY MK2 Gebruikershandleiding - Pagina 3
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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
3