Siemens OOH740-A9-Ex - Internal Alarm Indicator; Connection for External Alarm Indicators; Renovation Mode

3
Structure and function
Function
26
Building Technologies A6V10367521_h_en_--
Fire Safety 2015-02-02
3.2.5 Internal alarm indicator
The point detectors have a red LED that acts as an internal alarm indicator. The
internal alarm indicator shows the operating condition of the point detector
according to the tables below:
Addressed operation
Operating condition Flashing mode of the AI
Alarm AI flashes every second
Localization AI flashes every second
Device test (with alarm) AI flashes every second
Device test (without alarm) No flashing (AI off)
Collective operation
Operating condition Flashing mode of the AI
Alarm AI flashes every second
Device test (with alarm) AI flashes every second
Device test (without alarm) Flashes in relation to parameter set
3.2.6 Connection for external alarm indicators
An external alarm indicator FDAI9x-Ex can be connected to the point detector
OOH740-A9-Ex.
On the C-NET-Ex, it is possible to connect external alarm indicator to any point
detector. The trigger for activating the alarm indicator can be programmed at the
control panel.
3.2.7 Renovation mode
When operating point detectors on the C-NET-Ex, individual detectors can be set
specifically to renovation mode on the control panel.
Select renovation mode if major work is being carried out in the room and large
volumes of dust or aerosols are being produced.
NOTICE
Changed settings
Limited alarm function in renovation mode
● In renovation mode, the multisensor fire detector only triggers an alarm when
the temperature exceeds 80
°C for 20
seconds.