TITANUS
MICRO·SENS
®
Technical Description
06/13
29
alarm point via a contact. The monitoring windows can be adjusted to the
environmental conditions.
The principle of the airflow sensor signalling process can be seen in the fol-
lowing figure.
Figure 9: Example signal pattern in the airflow sensor during faults
The detection unit is monitored for dirt and signal fault. Any fault which oc-
curs is displayed at the TITANUS
MICRO·SENS
®
and can be forwarded to
the FAS via a contact.
Airflow adjustment on the TITANUS
MICRO·SENS
®
is fully automatic when
the detection unit is inserted in the device base, if previously the Jumper X4
had been changed. This plug & play reduces the time needed for commis-
sioning to a minimum. It is also possible, however, to adjust the airflow using
the DIAG 3 diagnosis tool. This means the initialisation phase can be carried
out in an air pressure-dependent or air pressure-independent manner.
A fault message is reset via the connected FAS. If whilst the TITANUS
MI-
CRO·SENS
®
is operating an FAS alarm and fault [messages] have to be re-
set at the same time as the control line, then as an option a reset board can
be inserted in a separate housing. The reset board can only be placed in a
separate housing and if the idle current on the line is between 5 mA and 50
mA. The line must be switched to dead for resetting. The effect is that when
there is any short-term switching off of the line voltage, the alarm and fault
messages on the TITANUS
MICRO·SENS
®
are automatically reset.
Device monitoring
irflow adjustment
Resetting through FAS