©
AirSense Technology Ltd. 2005
Page 12
Stratos-Micra 100
• INSTALLER’S HANDBOOK • Iss. 3
3.21
Watchdog count –
Device information
tab
The watchdog is a circuit built into the controller that restarts the controller 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.
3.22
Device text –
Device information
tab
This function has no current use on the Stratos-Micra 100 but is reserved for future expan-
sion purposes.
3.23
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.
3.24
Reference enable –
Referencing
tab
Ticking this box enables the reference for the detector, if one has previously been allo-
cated in
Reference detector
(see section 3.23)
This function is disabled by
default.
3.25
Reference level –
Referencing
tab
The value set with this function is the percentage reference signal subtracted from the
detector’s signal, if a reference device has been allocated. The default value is 0.
3.26
Reference back-off –
Referencing
tab
This value is the delay time between a build up of pollution being seen by the refer-
ence (if used) and the pollution being seen by the detector. The default value is 15.
3.27
Flow rate –
Flow monitoring
tab
This function is for display purposes only, and shows a value corresponding to the cur-
rent airflow through the detector.
3.28
Flow high limit –
Flow monitoring
tab
This value is the level above which airflow needs to increase to trigger a fault indica-
tion (which may indicate a loose or damaged inlet pipe).
Flow low limit
and
Flow high limit
parameters are automatically set up on
initial power-up.
3.29
Flow low limit –
Flow monitoring
tab
This value is the level below which airflow needs to be reduced to trigger a fault read-
ing (which may indicate a blocked pipe).
Flow low limit
and
Flow high limit
parameters are automatically set up on
initial power-up.
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