By connecting a motion sensor to a lamp or a lamp, people avoid the high costs of electricity and, consequently, pay little for the utility service. The device, which fixes the movement of objects, is a convenient device, because it provides a unique opportunity to turn the light on and off automatically. AS D о _ о о _ _ ​​_ _on / off light

The principle of operation and use of the sensor

A motion sensor is a device that “notices” changes in locationIa objects in space and react launch the necessary actions. If the device is connected to the electricity system, then in response to the movement of a person, the sensor closes the circuit and gives light. Such a reaction is the result of the transformation of the thermal field, because its temperature rises due to air fluctuations.

switch. However, the principle of operation of the motion sensor may be different. Therefore, the device is infrared, ultrasonic, microwave and combined. Only an infrared sensor responds to a change in a warm field. A ultrasonic and microwave device functions due to receiving sound vibrations. The sensor, which catches ultrasound, is considered the most perfect, as it scans movements even through walls. The combined device picks up several types of radiation.

The device for fixing movements is used as a device that helps save on electricity. But the sensor is good not only because it turns off the light if the owner of the house and the children running from one room to another forget to do this. The device eliminates the need to grope a switch in the evening and night hours, or allows you to completely abandon the switching device that supplies current.

Choosing a place for the device

In order for the motion sensor, which turns on the light, to work in time, it must be installed correctly. It should be guided by some tips:

• It is better to mount the device on a wall or ceiling near the door, which will allow him to apply electric current at the time of a person's transition to another, not yet lit room.

  The sensor must be located close to the door

• The motion sensor cannot be fixed in the central part of the wall, because of this, the door is lost sight of.
• It is advisable to install the device in a room without windows or at least away from daylight sources, otherwise you will have to adjust the sensor for different degrees of illumination.
• In a room where there are 2-3 doors, you will need several devices that automatically turn on the light, or only one sensor located in the corner of the room, because the device has a 120 degree view.

  Device radiation can cover 1–2 m of space

• On the landing, it is wiser to attach the device for automatic switching of light to the wall above the stairs or to the ceiling, so that the sensor can detect the movement both at the top and bottom of the stairs.

Connection Diagrams

To connect the motion sensor to the mains and the lamp, you first need to understand the installation diagram. Otherwise, you can get confused, because the device has 3 contacts: zero, the input and output to the lighting device.

When connecting a motion sensor to the lighting system, you can go three ways:

• it is necessary to make the sensor fully responsible for switching on and off the light, which makes sense to light up the local area or pool if necessary.
• Together with the device that detects air oscillations, use a switch in the room that forcibly turns off the light in the room, which means that the lamp must be connected to the electrical network, bypassing the motion sensor.
• Supplement the lighting system power supply circuit not only with a device that automatically supplies light, but also with a switch, when pressed, the light will go out and will not light up due to movements made during sleep.

Instructions for connecting a motion sensor to control the lightinglevers of automatic switches.

Having blocked access to the lighting devices for electric current, they remove the cover from the back of the motion sensor, behind which the terminals are hidden. To accomplish this task with a screwdriver, unscrew the fastener screw located at the bottom of the device. Inside the opened device find 3 wires of different colors. A brown wire is used to connect a phase conductor that is routed through a junction box. The blue wire is a contact connecting the neutral conductor to the system, also coming from an electrical device to hide cable strands and strains. A black or red posting plays the role of an output terminal that connects a motion sensor to a lighting device.

By meshing the wires, you can make the sensor work un-coordinated.

In the lid removed from the device, they make a hole - an outlet for the wires. Going through the rear flap of the sensor, they will not be visible to anyone.

The wire sticking out of the wall is pushed into the hole of the removed cover, which is immediately mounted on the wall. In this case, the electrical wiring should be placed vertically to avoid accidental damage during the mounting of the motion sensor element.

The power cable is prepared for connection, that is, shortened so that its length is not more than 6 cm. The wires of this wire strip off 5 mm of insulation, which is necessary to connect the cable to the terminals of the device that catches the movement and automatically turns on the light.

The wire through which electrical current flows is connected to the L, N, and LS terminals of the sensor.

The case of the device is attached to the wall, carefully placing the terminal block in the niche located behind the rear wall of the sensor.

Mounting the device requires caution

When performing this action, the wires are bent so that they are not an obstacle to mounting the device. After installing the sensor housing on the back cover, tighten the screw from the bottom.

Sometimes a motion sensor is required to be connected together with a switch. This task must be carried out in such a way that the switch is connected to both the lighting device and the motion sensor. This can be done as follows:

1. Find the wire that stretches from the lamp to the switch.
2. Connect another wire to the detected wire, directed to the red contact of the motion sensor.
3. Take the wire on the other side of the switch and insert into the brown contact of the device that automatically turns on the light.
4. Pull the wire belonging to the lamp to the terminal of the motion sensor.

Video: how to connect the device

Video about mounting the device

Solving possible errors

When installing a device that turns on the light after capturing human movements, you can make the mistake of creating a bad contact at the neutral wire. This happens if the wire is inserted into the terminal along with construction debris or does not burn, which leads to the formation of a dense layer of soot, significant heating, oxidation and loss of contact. If the sensor does not work, then the wires must be checked and, if necessary, cleaned or pressed.

Sensor malfunction may be a consequence of the deformation and breakage of the aluminum conductor. To believe that this is so, it is necessary to apply a voltmeter - bring its probes closer to the terminals. True, the device may not work even if the device detects a voltage. In this situation, you should replace the old lamp with a new one, because, most likely, the problem lies in the blown filament of the channel in the lighting device.

Sometimes people who have installed a motion sensor in a room face the following problem: the light will not turn off, despite the fact that the device that reacts to the movement of a person is working properly. To deal with this malfunction of the device, you need to check the time setting period. Probably, this value is too large and does not allow the output contact responsible for the operation of the lamp to open. In this case, it is required to slightly reduce the delay time for triggering.

Adjusting the operation of the motion sensor to turn on / off the light

The device must first set the time. The sensor allows you to select the interval from seconds to 10 minutes. Determining over time will be easier if you listen to the following tips:

• is the optimal period for supplying light to the stairs - a few minutes, because it’s rare to stay longer in such a place;
• a normal period of time to feed light into the utility room - 10-15 minutes, because from such a room often have something to take.

The sensor is supposed to set the response delay after fixing the movement of the object. This value can range from a few seconds to 10 minutes and is determined by how fast a person moves. For example, the corridor is crossed quickly, so it is better to mount the sensor in it with the abbreviated “Time” parameter.

Without setting the device will not work correctly It is recommended to equip a room where a lot of light penetrates from the windows with a motion sensor with a Lux controller set in the initial or middle position.

The sensitivity of a device that triggers certain actions in response to human movement is controlled by the “Sens” regulator. This value is influenced by the remoteness of the device from the moving object and the weight of the person who made the sensor work. Therefore, in the case of the inclusion of a light sensor without a reason, it is required to make the sensor less sensitive. And it is worth thinking about an increase in the response rate of the device only if there is no action from the sensor while a person passes by.

The motion sensor has a complex structure that has to be adjusted to the special conditions of operation. Ignoring the rules is fraught with the fact that the device will work contrary to the desires of the owner of the room.

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