Commissioning the system
Installation & Commissioning Handbook, ,
P-ASENSE75/IE 980302, 7483 Trondheim
Page 18
4.6 Configuration of air-flow monitoring
The air-flow monitoring configuration is an automatic function. This
will ensure that the upper and lower air flow limits are correct.
1. Activate the configuration by pressing and holding down for 2
seconds the “LEARN” button marked
S1
(see diagram below).
2. Observe the following “LEARN” mode:
- The yellow indicators will flash depending on the switch setting
Ý
left pipe: only the
FILTER L
indicator will flash
Ý
right pipe: only the
FLOW R
indicator will flash
Ý
both pipes: both
FILTER L
and
FLOW R
will flash
- The red
LEARN
indicator will come on
- The green
POWER
indicator will come on
3. Wait approx. 5 minutes (the “learning” period)
4.
Observe at “learning mode time-out” (after approx. 5 minutes) that
the yellow
FILTER L
and/or
FLOW R
indicator(s) will go out,
while the red
LEARN
indicator will start to flash.
5. If the detector accepts the measurements during the period, the red
LEARN
indicator will flash a few times, and then go out. The
configuration of airflow monitoring is done for the actual pipe(s).
Only the green indicator should be lit.
If the detector does not accept the measurements as valid values, the
indicators will show the following:-
•
The red
LEARN
indicator will continue flashing.
•
The yellow
FILTER L
indicator will start to flash.
There are several reasons why the detector will not accept the
measurements. For example, the switches may be set incorrectly. If
only one pipe is connected to the aspirating detector, check that the
switch setting is correct (left or right pipe, see Chap. 4.4). The could
even be a fault in the detector.
•
Rectify the problem and repeat the configuration procedure.
S1
F
LEARN
FILTER L
FLOW R
POWER
