93-530-70 Issue 0 Page 34 of 44 © Protec Fire Detection PLC 2007
24.0 Alarm Fault Details
The 3300 will display the fault status of its alarm outputs if the ‘Alarm Fault’ indicator is illuminated in
the fault diagnosis mode.
Display row 1 shows any open circuit faults.
• Zones 1 & 2 will be illuminated when alarm circuits 1 or 2 have an open circuit fault.
• Zones 3 & 4 will be illuminated when alarm circuits 3 or 4 have an open circuit fault.
Display row 2 shows any short circuit faults.
• Zones 1 & 2 will be illuminated when alarm circuits 1 or 2 have a short circuit fault.
• Zones 3 & 4 will be illuminated when alarm circuits 3 or 4 have a short circuit fault.
Figure 24.0 shows alarm circuits 1 or 2 having an open circuit fault condition and alarm circuits 3 or 4
having a short circuit fault condition.
Figure 24.0 Example of an alarm fault display.
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