The XP95 Sounder VAD Base is a loop-powered sounder and EN 54-23 approved VAD combined with a standard intelligent mounting base. It is used to signal a fire alarm in enclosed areas.

You can perform a ‘Self Test’ this is an important safety feature which has been incorporated into the Sounder VAD Bases: when it is switched on it tests itself by checking the actual sound output and flash operation.

There are 3 possible outcomes from the test, if the transmitter reads:

• A value of 1 (=Sounder fault) this means there was no sound detected in 5 seconds of the sounder being switched on.
• A value of 2 (=VAD fault) means there is no current being drawn by the LED’s.
• A value of 3 (=Sounder and VAD fault) where neither of the above elements are operating correctly.

If no sound is detected within 5 seconds of the Sounder VAD Bases being switched on it will transmit an analogue value of 1 (= sounder fault) when it is next polled.

This feature can also be used during commissioning or periodical maintenance testing. Simply activate the Sounder VAD for at least 5 seconds and check the control panel for a fault signal. If none is received, the Sounder VAD Base is working properly.

Key Features:

• EN54-23 approved
• Flash rate of 0.5Hz
• Synchronisation of 'alert' and 'evacuate' tones
• Synchronisation of visual indicator flash
• Individual and group addressing
• Unique acoustic and VAD self-test
• Built in isolator