Halma Ampac TITANUS PRO-SENS, Technical Manual

Page: 172 / 197

MAN3184 - TITANUS PRO • SENS®
172
9.8 Checking the airflow sensor calibration
► Check the airflow sensor value with the diagnostic software.
Functional principle
During the initialisation of the connected pipe system, the device initially
saves the measured actual value of the airflow as a target value via the
integrated airflow monitoring. This target value serves as reference value for
the further evaluation of a potential airflow fault. Depending on the selected
airflow threshold (see chapter "Project planning", section "Adjusting airflow
sensitivity"), the current airflow value may fluctuate around this target value
during operation without triggering an airflow fault. The device only indicates
an airflow fault when the set airflow threshold is exceeded. Thus, the fault is
transmitted.
Checking the actual value
The tolerance range for the set airflow threshold (min./max.) as well as the
actual value (blue diamond) and target value of the airflow are displayed in
the diagnostic software. Depending on the selected airflow threshold, the
limits of the tolerance range correspond to a deviation of ±10% (threshold I),
±20% (threshold II), ±30% (threshold III) or ±50% (threshold IV).
► Check the deviation of the actual value from the target value. If there is a
deviation of > ±70%, the pipe system is to be checked as a preventative
measure (see the following section "Rectifying an airflow fault").
When installing the special filter, observe the direction of flow.
NOTICE
Opening the special filter leads to an airflow fault on the
TITANUS PRO·SENS®.
NOTICE
The current airflow value may deviate from the target value not only due to
a fault in the pipe system (break or blockage), but also due to air pressure
fluctuations in the surrounding area.
NOTICE