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Stratos-Micra • INSTALLER’S HANDBOOK • Iss. 1
3.18 Latching faults –
Alarm actions
tab
When this function box is ticked it requires a reset signal to clear a fault condition.
Reset can be remote (see section 3.14), from the Remote Software (see section 4.1) or
from a Command Module.
If unticked, the fault signal is extinguished as soon as the fault condition ends. This is
the factory default setting.
3.19 Cascading alarms –
Alarm actions
tab
Ticking this function box means that only when the detector has gone into Pre-Alarm
does it start counting down the main Fire delay i.e. the time delays on Pre-Alarm and
Fire 1 are cumulative. The Aux alarm is not included in the cumulative delay since it
may be set to a higher level than either the Pre-Alarm or Fire 1 levels. This function is
enabled by default.
3.20 Device type –
Device information
tab
This function is for display purposes only. It shows any special designation for the unit,
which will normally be
Stratos-Micra.
3.21 Firmware version –
Device information
tab
This function is for display purposes only. It shows the version number of the fitted
firmware chip.
3.22 Run-time hours –
Device information
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This function is for display purposes only. It shows the cumulative total number of
hours that the device has run
(
NB
: this is not the time that has elapsed since last power-
up, but the sum total of run time since the detector memory was last reset).
3.23 Watchdog count –
Device information
tab
The watchdog is a circuit built into the detector that restarts the detector in the event
of a failure to function properly. This could be as a result of electrical spikes. This count
shows the number of interruptions found. The details of each problem can be found
in the event log.
See section 8, “Event log” for further details.
3.24 Device text –
Device information
tab
This function can be used to enter a special designation for the units, such as its work-
ing area or room number, which will be displayed on a connected Command Module
or SenseNET™ system in place of the detector's address number, whenever the detec-
tor generates an event such as an alarm or fault. The maximum length (including
spaces) is 16 characters.
3.25 Reference detector –
Referencing
tab
A Micra detector may use another detector as a fresh air reference. This function is the
address of the detector which will be used as the reference.
To set a detector as a reference detector, enter its address as set by its internal DIP
switch into this function. This function is disabled by default.
3.26 Reference enable –
Referencing
tab
Ticking this box enables the reference for the detector, if one has previously been
allocated in
Reference detector
(see section 3.25)
This function is disabled by
default.
NB
+
