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POLITEC | INSTALLATION MANUAL - VER.3.1
21.1 Commissioning and adjustment
21.Appendix A:DT3 sensor
MANA DT SMA
1
2
3
4
5
1
12V POWER SUPPLY
2
NC ALARM
3
ALARM LED
4
DIP LED ON
5
MW SENSITIVITY TRIMMER
•
Connect 12V power supply
and alarm contact using a
shielded cable.
•
Adjust the sensitivity of the
microwave to 24GHz with the
trimmer
and
carry
out
crossing tests.
As mentioned above, the microwave barrier creates a cigar-shaped area of coverage and this
creates a dead zone, that is to say, without protection, in the immediate vicinity of the columns
(both transmitting and receiving).
This area is up to 5m long and is generally covered by using the installation of crossed columns,
near the corners of the perimeter to be protected.
If the installation spaces do not allow the correct positioning of the columns, the use of the DT3
sensor is recommended, which uses a 24GHz microwave with Doppler effect.
This is placed inside the upper part of the columns, creating a mini curtain, on the same axis as
the main microwave.
It is recommended to use this sensor in AND with IR technology, preferably if possible, by bringing
your alarm output to an alarm control panel input, to check its status and event storage.If this is
not possible, it is advisable to put it in series with the main microwave.
P.S.
If the serial connection in RS485 has been provided and therefore the use for the
management of the system with the ADEBUS concentrator, it will be much easier to manage all
the information of the entire system and each component, including the DT3 sensor.
More details are on page 42 or in the ADEBUS & ADEBUS EXPLORER manual.
