Microwave Bistatic Detectors "FMW" 

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Frequency 9.4 GHz

1. PURPOSE

The purpose of local protective microwave detectors of "FMW-3", "FMW-3T", "FMW-3V", "FMW-3TV" families (hereinafter referred to as the detector) is to protect perimeter sectors of different sites.

2. GENERAL INFORMATION

2.1. The detector is a bistatic microwave detector consisting of a transmitter and a receiver.
2.2. The principle of the detector operation is to generate an electromagnetic field in the space between a transmitter and a receiver. The field forms a volumetric detection zone in the form of a stretched ellipsoid of rotation and registers the changes of this field when an intruder crosses a detection zone.

3. DISTINCTIVE FEATURES

3.1. High noise immunity.
3.2. The detector is immune to the influence of strong electromagnetic fields (power lines up to 500 kV).
3.3. The detector can detect a crawling intruder in case of special preparation of a sterial zone and sensitivity adjustment.
3.4. Microstrip production technique of microwave modules.
3.5. "FMW-3T" family microwave modules: extended temperature range, advanced reliability.
3.6. "FMW-3V" family: it can be used in explosive room zones and outside facilities. Explosion protection of the detectors is provided by "spark safe electric circuit i" type of explosion protection according to GOST R 51330.10-99. Explosion protection marking is 2ExicIIBT6X.
3.7. Operating frequency - 9,4 GHz or 10,525 GHz

4. SPECIFICATIONS

4.1. The length of a detection zone of the detectors:

FMW 3/2 (50) - 50 m
4.2. The maximum width of a detection zone is:

 

 

• 5m when the length of a sector is 300 m; 4 m when the length of a sector is 200 m;
• 3m when the length of a sector is 100 m; 1,5 m when the length of a sector is 35m;
• 1m when the length of a sector is 15 m; 0,75 m when the length of a sector is 5 m.

 

4.3. The minimum height of the detector detection zone is:

• 1,8 m when the length of a sector is 300m; 1,6 m when the length of a sector is 100m;
• 1,3 m when the length of a sector is 35m.

4.4.The detector generates alarms when:

• a person crosses a detection zone at a speed of 0,3…10m/sec.;
• supply voltage is below normal one;
• there is an attempt to mask a receiving unit of the detector;
• there is an attempt to demount the detector;
• the detector units are out of order.

4.5. Probability of detection is 0,98 minimum.
4.6. The detector supply voltage is 9…30 V.
4.7. Maximum consumption current is 0,045 A.
4.8. Maximum time of availability for operation is 30 sec. after power supply is ON.
4.9. Minimum time of an alarm is 3 sec.
4.10. Parameters of controlling relay:

• controlled current up to 0,1 A;
• controlled voltage up to 50 V.

4.11. Leak proof class IP-55.
4.12. Case dimensions:

• "FMW-3" - 205 x 205 x 57 mm (Transmitter and receiver);
• "FMW-3/1" - 205 x 130 x 70 mm (Transmitter and receiver);
• "FMW-3/2" - 140 x 120 x 40 mm (Transmitter and receiver);

4.13. Weight (including fixing elements), not more:

• "FMW–3" - 1 Kg (Transmitter and receiver);
• "FMW–3/1" – 0,9 Kg (Transmitter and receiver);
• "FMW-3/2" - 0,9 Kg (Receiver), 0,4 Kg (Transmitter).