HC-SR501 Human Sensor Module Pyro-Electric Infrared

HC-SR501 Human Sensor Module Pyro-Electric Infrared

Keywords: HC-SR501 Human Sensor Module Pyro-Electric Infrared

Part No.: PMS036

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• Features:
1,Automatic induction: entering its sensing range output high, people leave the sensor range automatic delay off high, output low.
2,Photosensitive control (optional factory is not set) can be set photosensitive control, daytime or light sensing.
3, temperature compensation (optional, factory not set): in the summer, when the ambient temperature was increased to 30 to 32 ° C, the detection distance is slightly shorter, temperature compensation can be used for performance compensation.
4, two trigger modes: (jumper select)
a, non-repeatable trigger mode: the sensor output high after a delay period end, the output automatically from high into low;
b, repeatable trigger mode: the sensor output high, the delay period, if the activities of the human body in its sensing range, the output will always remain high until people leave only delay the high level goes low (sensor module detected after every activity of the body's automatic postponed a delay period of time, and the last time activities as the starting point of the delay time).
5, with a induction blockade Time (default setting: 2.5S blockade time): induction module (high in every sensor output becomes low), can be followed to set up a blockade period of time, during this time period The sensor does not accept any inductive signal.
This feature can be achieved the inductive output time "and" blocked time interval between the two, can be applied to the interval detection products; while this feature can effectively suppress the various interference generated in the process of load switching. (This time can be set in a fraction of a second - a few tens of seconds).
6, wide operating voltage range: the default operating voltage DC4.5V-20V.
7, Micropower: quiescent current <50 microamps, especially suitable for battery-powered automatic control products.
8, output high signal: convenience and all kinds of circuit to achieve docking.

Note: adjust the the distance potentiometer clockwise rotation sensing distance increases (about 7 meters), on the contrary, the sensing distance decreases (about 3 meters).
Adjusting the delay potentiometer rotates clockwise, sensitive delay lengthened (approximately 300S), Conversely, induction delay shorter (about 5s).

• Description:
Sensing module is powered after a minute or so the module initialization time, during this time interval to output
0-3 minutes into standby.
Should avoid lights and other sources of interference the a close direct module surface of the lens, in order to avoid the introduction of the interference signal malfunction; using the environment as much as possible to avoid the flow of the wind, the wind will cause interference sensor.
Sensing module with dual probe, the probe window is rectangular, dual (A $ B $) in the long direction at both ends, from left to right or from right to left when the body is walked by infrared spectroscopy reach the dual time, distance difference, the greater the difference, the more sensitive the induction, when the human body from the front to the probe or from top to bottom or from the bottom to the previous direction came dual detection distance of less than infrared spectroscopy, no differencevalue, the sensor should be installed up to the direction of the probe dual direction with human activities as parallel as possible to ensure that the human body has been passed by the probe dual induction sensor insensitive or does not work; Round lens in order to increase the sensing range of angles, the module also makes the probe surrounded induction, but the left and right sides still up and down both directions sensing range and sensitivity, still need to try to install the above requirements.