Passive Sensor PA-470A

Passive sensor for wall and corner installation with abundant features.

■ Adoption of Fuzzy Theory The two outputs from the newly developed dual twin element are divided into two pieces of information: the temperature difference and shape difference between the detection object and the background, which the CPU uses to accurately determine whether the detection object is a human or a small animal using fuzzy theory, and outputs an alarm. Even when phenomena that are likely to cause malfunctions, such as small animals (like mice), stray light, drafts, and external noise occur, the dual twin effect ensures that there is almost no influence. ■ Combined 3D and Area Surveillance By operating the mode selector inside the sensor and changing the lens, it can also be used for area surveillance. The surveillance area is effectively monitored up to 16m for 3D surveillance and 20m for area surveillance. ■ Abnormal Alarm Function While the sensor is in a surveillance state, it monitors the next functions through an internal program. If an abnormality is detected, it alerts with continuous alarm output and indicates the abnormality with an alarm display light. ■ Auto Reset Memory Function When multiple sensors are connected, it is possible to confirm which sensor triggered the alarm by the blinking or lighting of the display light.

Security Sensor Systems