Faraday 12530-120, Руководство пользователя

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1 2 5 3 0 / 1 2 5 4 0 O W N E R ' S M A N U A L
P/N 447203 Issue I VII-1
VII. MAINTENANCE
GENERAL
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Device sensitivity may be read out and alarm thresholds controlled on a per-point basis, as well as
setting overall percent obscuration and day/night variations. Individual points may also be disabled
for service.
To perform these functions on the unit, enter the 4-digit maintenance password into the control unit or
LCD annunciator. When the menu is displayed, select the desired function or sub-function and press the
appropriate operating button. When the function is complete, the menu will provide a command for
exiting the maintenance mode.
Note that any abnormal condition, such as disabled points, will report a
trouble. Confirmation of disabling or re-enabling a point is required to
complete the action, but acknowledgment of the trouble is not required, since
it results from operator action.
Activation of an alarm condition or a time-out after no button activity terminates Maintenance mode.
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The system may automatically scan the operating points and report to a printer, facilitating NFPA 72
test requirements. The control unit may perform this scan once a day, with the time selectable by the
user.
To initiate a non-programmed automatic test cycle, enter the 4-digit maintenance password into the
control unit or LCD annunciator. When the menu is displayed, select Auto-test and press the associated
switch. The Auto-test cycle will be completed and the control unit returns to normal. Results will be
displayed on the display (anomalies only) or the printer (full data) according to the selected mode.
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The system will automatically monitor drift of quiescent sensor output levels and report a
maintenance alert if a preset level is passed, or if a sensor drifts too quickly. This maintenance alert
is annunciated as a trouble.
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The system may be programmed to report the number of times the alarm verify function is initiated by
device, time of day, and/or day of week, allowing location of environmental problems. This datum is
available on the display as described in paragraph 1 above.
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The system may be programmed to alert the operator when scheduled maintenance is required.
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A 2000 event history is maintained, with all events available for chronological review at the operator
level. This history may be cleared only with the Tech Level Code. For details on included data and
use of the history, see operation instructions.
To clear history when data has been read out and restoration of memory space is desired. Activate
maintenance mode as described above and follow menu instructions for clearing the event history.