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Fire Alarm Computer 8000C
Example of switching off sensors in an analog ring loop:
♦
Press key "2" to select the Service function (loop) or select the menu point with the cursor keys
and acknowledge by pressing the
Select
function key.
♦
Enter the primary loop number of the analog ring loop in which the sensors are to be switched
off and press the Select function key.
♦
Enter the number of the desired function (1 = O sensor off, 2 = OI sensor off, 3 = I sensor off, 4
= all sensors on) or select the function with the cursor keys and press the Function key.
☞
Switching off sensors is only possible for OH and OHI multisensor fire detectors. If
multisensor fire detectors with unifunctional detectors (detectors with only one sensor) are
installed together in an analog ring loop, only the sensors in multisensor detectors are
switched off.
Switching on/off not permissible
The switching on/Disconnection of the detector sensors is indicated in the display.
If sensors have already been disconnected in an analog ring loop, for example I sensor off for all
fire detectors or if there are no sensors of the selected type in this analog ring loop or a zone
disconnect has been detected, the plaintext message
"Switch on/Disconnect not permissible"
is
displayed.
In an analog ring loop, it is generally only possible to execute a disconnection function, e.g.
disconnected sensors or detectors, when no further, lower-order disconnected functions have been
carried out; i.e. when individual detector sensors within a detector zone have been disconnected,
this detector zone cannot be additionally disconnected, as disconnect functions for this detector
zone have been carried out. However, it is possible to switch off other zones of this analog ring
loop in which sensors/detectors have not been disconnected.
In order to change the existing sensor switching status, all disconnected detector sensors must first
be switched on, for example with the command All sensors on. After
all detector sensors
have been
switched on, a further switching off/sensor disconnect can be performed.
Service Level
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