FORTEZA JSC FORTEZA FMC 24 Pro (100m, 200m, 300m)
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L
- Length of a sector
h
- Height of detection zone
b
- Width of detection zone
1.2.3. In Fig.1.1 and Table 1.1 the height (h) and the width (b) of the detection zone
are given for the middle of the sector. Moving towards the receiver or transmitter these
dimensions decrease evenly, given the geometry of positioning the receiver and transmitter.
1.2.4. The recommended distance from the axis of the detection zone up to fences,
building walls and other motionless objects at the sector length:
80…200m - 1, 1 m minimum
25…80m - 0, 8 m minimum
10…25m - 0, 4 m minimum
1.2.5. The sensor generates an alarm when:
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an intruder crosses the detection zone. Detection probability is 98 % when an
intruder crosses the detection zone at his “full height” or “bent”;
-
external electromagnetic field influences on Rx for its masking. There may be
no alarm signal, but in this case the sensor should save its operability.
An alarm is generated by breaking the contacts of optoelectronic individual point relay
(standby mode) for 3 sec minimum. Orange and brown wires marked «NC» (normally closed
,or «NO» - normally open) and this alarm is transmitted over RS-485 interface.
1.2.6.
The sensor generates a fault signal at:
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the absence of Tx signal;
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the absence of supply voltage or at its reduction lower than 8 mV;
-
Rx or Tx failure.
1.2.8. Upon the opening of Rx cover the sensor generates an alarm. At the same time
the contacts of the TAMPER opens too. These alarm signals from Rx and Tx are being
transmitted by the separate pair of wires or a common pair of wires with alarm transmission.
1.2.9. The sensor doesn’t generate false alarms at:
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rain, snow, thick fog;
-
solar radiation;
-
wind speed up to 30 m/sec;
-
objects moving with the linear dimensions up to 0,2 m (birds or small animals);
-
irregularities up to ± 0,3 m;
-
snow up to 0,5 m (without additional adjustment);
-
grass up to 0,3 m;
-
the influence of ultra-short waves emissions of the range 150-175 MHz and the
power up to 40 W at the distance 6 m maximum.
1.2.10. The sensor is immune to electromagnetic interferences (voltage impulses in
supply circuits, breaks of mains supply, electrostatic discharges and electromagnetic fields).
1.2.11. The case of the sensor is made of impact-resistant plastic immune to UV
radiation and the temperature changes in all the performance range.
1.2.12. The sensor mean lifetime is 8 years.
