Astra-551

Combined detector

The detector is intended for detection of unauthorized access into an enclosed area, and generation of an alarm notification by opening contacts of dedicated signaling relay if signals are present in both detection channels - infrared and microwave (PIR and MW).

Combined detector

Features

2 detection channels: PIR channel, Microwave channel;
immunity to thermal interference;
effective detection of longitudinal movements;
high detective ability and noise immunity;
microprocessor analysis;
discrete sensitivity adjustment;
"alarm memory" mode;
self-testing;
tampering control;
bracket included;

PIR channel:

volumetric lens;
spherical lens;
temperature compensation;

Microwave channel:

detection zone combined with the PIR detection zone;
frequency shift, allowing two detectors to be used in one room;
detection range control;
resistance to radiation from fluorescent lamps.

Parameter	Value
Operation frequencies (microwave)	5350 to 5650 MHz
Detection zone range	10 m
horizontal viewing angle of PIR channel	90°
recommended installation height	2.2 to 2.5 m
supply voltage	8 to 15 V
max current consumption	16 mА
resistance of the circuit included in the alarm loop	6 - 8 Ohm
Overall dimensions	106.5х72х51.5 mm
Temperature range	from -30 to +50 °С
Relative humidity	up to 95% at +35 °С
IP protection	IP41

Manuals

551-v1_4_instr_en.pdf