BS100 DYFI Operators handbook
P-BS100/FE - Rev.F / Doc/ 980114 37 Autronica Fire and Security AS
10.1.2 Beyond-limit
If "SENSITIVITY" and then "BEYOND-LIMIT" are selected from the
menu, only detectors beyond limits are listed out in the display or on the
optional printer.
The following text will appear in the display:
ADDRESSES SENSITIVITY BEYOND LIMITS
HIGH LEVEL: 100 LOW LEVEL: 045
The limits appearing in the display are preset at the factory.
Detectors having a sensitivity beyond these limits should be serviced.
The preset limits can be changed by means of the arrow keys. The ↵
↵↵
↵ key
must be pressed to activate the function.
Also in this sequence it is necessary to select if the result shall be presented
in the display or printed out on the optional printer. If the display is selected,
each detector address beyond the preset limits will be indicated for approx. 5
seconds. The following text appears in the display:
SENSITIVITY BEYOND LIMITS TESTING
ADDRESS: 001 XXX PRESS ↵
↵↵
↵ TO STOP
This sequence will be automatically completed when all detector addresses
beyond limits have been listed, or when the ↵
↵↵
↵ key is pressed.
The following text will appear in the display:
SENSITIVITY BEYOND LIMITS TESTING
ALL EXAMINED. XXXX BEYOND LIMIT
A smoke detector exposed to air pollution, dust or similar environment will
slowly be polluted and may approach the alarm limit. This can lead to an
unwanted alarm.
When an address reaches the monitoring level (Between 96 - 103 answer
pulse), the BS-100 DYFI function will automatically raise the alarm limit so
that the quiescent value and alarm level threshold is maintained.
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