HC-SR501 Human Infrared Sensing Module Pyroelectric Sensor Imported Probe Red and Blue Plate OptionalItem NO.: HC-SR501

HC-SR501 Human Infrared Induction Module

Product Description:

HC-SR501 is an automatic control module based on infrared technology. It adopts the original imported probe design, with high sensitivity, strong reliability and ultra-low voltage working mode. It is widely used in various automatic inductive electrical equipment, especially the automatic control products powered by dry batteries.

Electrical Parameters:

● Product model: HC -- SR501 human body sensing module

● Operating voltage range: DC voltage 4.5-20V

● Quiescent current:<50uA

● Level output: high 3.3 V/low 0 V

● Trigger mode: L non repeatable trigger/H repeated trigger (default repeated trigger)

● Delay time: 0.5-200S (adjustable), production range: a few seconds to dozens of minutes

● Blocking time: 2.5S (default), the production range is from zero seconds to tens of seconds

● Boundary dimension of circuit board: 32mm * 24mm

● Sensing angle:<100 ° cone angle

● Operating temperature: - 15 -+70 ℃

● Size of induction lens: diameter: 23mm (default)

Scope Of Application:

The automatic lighting of corridors, corridors, toilets, basements, warehouses, garages and other places, the automatic exhaust of exhaust fans and other electrical appliances (incandescent lamps, fluorescent lamps, buzzers, automatic doors, electric fans, dryers and automatic washing machines) are particularly suitable for enterprises, hotels, shops, sensitive areas of warehouses or safe areas and alarm systems. It can also be used for anti-theft and other purposes.

Instructions:

There is an initialization time of about one minute after the induction module is powered on. At this time, the module will output 0-3 times at intervals and enter the standby state after one minute.

Try to avoid the light and other interference sources directly shining on the lens on the surface of the module in a short distance to avoid misoperation caused by the introduction of interference signals; The operating environment shall avoid flowing wind as much as possible, which will also interfere with the sensor.

The sensing module adopts a dual probe. The window of the probe is rectangular. The dual elements (A and B) are located at both ends of the longer direction. When the human body walks from left to right or from right to left, there is a difference in the time and distance of the infrared spectrum reaching the dual element. The greater the difference, the more sensitive the sensing is. When the human body walks from the front to the probe or from top to bottom or from bottom to top, the dual element cannot detect the change of the infrared spectrum distance and there is no difference, Therefore, the induction is insensitive or does not work; Therefore, when installing the inductor, the dual direction of the probe should be as parallel as possible to the multiple directions of human activity, so as to ensure that the human body is sensed by the dual direction of the probe successively when passing by. In order to increase the sensing angle range, this module uses a circular lens, which also makes the probe sense on all sides, but the left and right sides still have a larger sensing range and strong sensitivity than the upper and lower directions, so the above requirements must be followed when installing.