FORTEZA JSC
FORTEZA FMC 24 (50m, 100m, 200m)
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depend on: height and weight of the intruder, place of the sector crossing, its relief and speed
of the movement.
1.4.3. The signal on Rx input can be changed under the influence of other interference
factors: precipitations, vegetations, small animals, electromagnetic interference, swinging of
tree branches or gates, crossing the detection zone and which are commensurable with
intruder movements.
Other reasons, e.g. location of extensive constructions in the detection zone or near it
(fences, walls), irregularities and snow can influence on the Rx input signal. In these cases
the detection zone form is distorted because of re-reflections and interferences.
Multi thresholds operation algorithm permits to reduce the number of false alarms.
That’s why one should observe the recommendations of the subsection 2.1.
1.4.4. The alarms reception and indication are performed with the security system
controlled by the relay contacts, and with the security systems operating with RS-485
interface. When an alarm is generated, the normally closed contacts are broken.
1.4.5. You can use laptop to adjust and control the sensor operation. The remote
adjustment is also possible; you can control the sensor with the alarm complex over RS-485
interface.
1.5. Sensor structure
1.5.1. The detector consists of separate units (Rx, Tx) placed in dust-, splash-proof
enclosures.
1.5.2. Rx Construction and its fastening elements to the support are given in fig. 1.2
The carrier of the unit is base 4. Radio transparent enclosure 5 is fixed to the base with fixing
elements. In the heel of the enclosure there are two holes preventing condensed fluid
accumulation within the unit. The access to the controls, adjustment, indication elements and
clamps for the connection of the terminal element is open when the cover
6 is removed. Rx
is connected to the alarm control device with eight wires cable 8. Rx is mounted on the
support 1 using the bracket 2 and two buckles 13. Mounting provides the rotation of the unit
horizontally at angle +65
minimum; vertically: upward - at angle 30
minimum, downward
– at angle 45
minimum (if the bolt 12 is eased). Location and marking of the clamps,
controls, and adjustment and indication elements located under the
cover 6 are shown in fig.
1.3(a).
1.5.3.
Tx construction and its bracket are the same as the Rx construction (see fig.
1.2). The difference is in internal elements: under cover
6 are shown in fig. 1.3 (b); six wires
cables are used instead of cable 8.
1.5.4.
Mounting kit includes two brackets and four buckles for the mounting on the
support of Rx and Tx.
