Formula Sound Sentry Mk2 Noise Controller Cut-off Type (Excluding Contactor)

The Formula Sound Sentry Mk2 Noise Controller Cut-off Type works in conjunction with a relay or contactor and usually controls mains power.
It has been designed to solve some of the environmental noise problems encountered in entertainment venues and working areas. The Sentry MK2 Cut Off Limiter is designed to monitor sound levels and provide a trigger when a preset sound level is exceeded. The trigger will normally be used to trip a contactor removing the mains power supply to the music system.

Formula Sound Sentry Mk2 Noise Controller Cut-off Type 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