13. When the gas concentration drops below the Alarm 3 set point for
longer than the Alarm 3 Delay-Off setting then the audible alarm
and strobe asher will stop and the Alarm 3 Transmit message will
stop being sent on the CAN network.
14. On a sensor fault condition, the units will transmit the Fault Transmit
Message, option 59, to other monitors or controllers.
15. Manual Over-ride mode is available to test relay functions and
to activate ventilation. From the home screen press and hold
the up arrow for 5 seconds. Press the up arrow to increase the
timer by 5 minutes per click up the 60 minutes. The screen will
display MAN 5 and timer will energise relay 1 and send the Alarm 1
Transmit Message on the CAN network. After the time runs down
the unit will return to automatic operation. To cancel, press the
down arrow several times to reduce the timer to zero and return to
normal operation. To activate Alarm Level 2 or 3 as well with this
procedure, set option 69 to 2 or 3.
This sample sequence of operation shows the operation of a
basic network for one zone. See the Operation Manual section
4 Operation to see how to change settings and section 5
Congurations for setting up multiple zones.
4.5 Sequence of Operation
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