19.FAQ
30
SANDOR QUAD ESA
SMA
POLITEC | INSTALLATION MANUAL - VER.3.1
I can't align
Check that there are no obstacles of any kind interposed
between RX and TX and that the conditions of the site do not
represent an impediment;
N.B. remember to reactivate the optics once the alignment
operation is finished.
Make sure that the TX is in the test phase (orange LED of the
optic in question on and the others off);
Make sure that the connectors are well inserted and that the
DIP configuration is correct;
Check that the power supply on the terminal board is
sufficient;
Use the shielded cable for the power supply by connecting
the braiding to the earth (in case of persistent problem, it is
recommended
to
connect
the
alarm
and
power
supply/tamper with two separate shielded cables);
Check the correct sizing of the power cables;
Make sure there are no external light sources that interfere
with the correct reading of the signal (gate photocells, other
barriers, infrared etc.);
If the system uses a switching power supply, replace it with a
linear one to avoid electrical disturbances coming from the
network, we recommend the LAR22/LAR18 power supply.
The system goes into
disqualification even in the absence
of fog
Make sure that the power supply of the heaters is greater
than 20 Vac
at the barrier terminal board
.
Check the alignment accuracy of each individual optic and, if
necessary, carry out the procedure by performing a complete
scan, making sure that there are no light sources that can
influence the calibration;
For more precise alignment, position one side of the column
cover in front of the lenses in order to have two surfaces
interposed between TX and RX to double the attenuation of
the beam.
