Brooks FireTracker FT2GAS, Руководство по эксплуатации и техническому обслуживанию

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FT2GAS
Gaseous Extinguishing System
Rev No. 1.3
52
Operation
The BROOKS electronic sounder has two inputs, typically used for Alert and Evacuation but may also
be two evacuation signals providing the same tone but differing language messages. The sounder
requires a 24Vdc signal applied at the appropriate polarity. When power is applied to the digital
voice/tone module the unit will sound the tone for approximately 10-12 seconds followed by a digital
voice message. The tone and message are repeated until power is shut off.
Selection of tones and messages, messages only, or tones only is available using Brooks’ Audio Utility
software.
There is a jumper for selection of Australian or New Zealand evacuation/alert tones.
Tones
The standard tones available:
For New Zealand AS2220.1 Alert tone
AS2220.1 Evacuate tone
For Australia ISO7731 Alert Tone
ISO 8201 Evacuate Tone (T3)
Voice messages
All models come pre-programmed with a default alert and evacuate message. The sounder is also
available with gas warning messages. Custom messages can be easily uploaded using software and
serial cable. For customised tones and voice messages contact your nearest Brooks office.
Connection
Horn Sounder: Flying leads are supplied for termination to a
24Vdc source. The message will switch between Alert/Evac
depending on the polarity of the supplied DC voltage.
Flush And Surface Mount Speaker Sounders: These can be
terminated directly to the screw terminals as shown circled in
the attached picture.
For Alert 1
st
Stage Message Terminate: 0Vdc to “1”
+24Vdc to “2”
For Evac 2
nd
Stage Message Terminate: +24Vdc to “1”
0Vdc to “2”
Note: The polarity of connected 24Vdc signal determines which tone/message is selected.
End of line devices
Turn on voltage is 14V. Below this voltage no current is drawn, this allows for the use of end of line
resistors for the supervision of the sounder circuit.