FORTEZA FMC 10, Description Manual & Service Instruction

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FORTEZA JSC FORTEZA FMC 24 (50m, 100m, 200m)
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Fig.1.1. Detection zone
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:
- 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) and this alarm is transmitted over RS-485 interface.
Note. At the distance of 3-5 m from the supports with Tx and Rx the probability of the
intruder’s detection, who is moving stooping down (crawling through) in the detection
zone, is less than 98 % as an intruder can stoop down and pass below the detection zone.
1.2.6. The sensor generates a fault signal at:
- the absence of Tx signal;
- the absence of supply voltage or at its reduction lower than 8 mV;
- Rx or Tx failure.
When a fault signal is generated, the individual point relay contacts are broken, and a
fault signal is transmitted over RS-485 interface up to the malfunction repair.
1.2.7. When the exchange is interrupted over RS-485 interface, a fault signal is
generated by the alarm complex.
1.2.8. The sensor generates an alarm at the opening of Rx cover, under which there are
adjusters. The contacts of the tamper button (TAMPER) are open at the cover opening. This
alarm is transmitted to Rx by the separate pair of cables.
1.2.9. The sensor doesn’t generate false alarms at:
- 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;