The motion sensors using one of three types of radiation:
- infrared,
- ultrasound,
- high frequency radio waves.
With their help determined the presence or movement of objects within the field of view of the device. At the same time power is connected to the lighting and other electronic devices.
This allows:
- Pay less for electricity bills.
- Make automatic inclusion of lighting in the hallway, hallway, bathroom, or tracks in the garden.
- Make a private home safer. Outsiders on the approach to be well covered.
What are sensors?
By connecting the detection device type may be 2 or 3-wire.
Two-wire installed in normal Enclosures, usually next to the switch, or in its place. When installing, pay attention to the fact that the door leaf does not overlap the field of view of the sensor. Make sure that the bottom did not have any heating appliances. It is not recommended to use these devices with energy-saving and LED lamps.
2 connects wired sensor as well as one-button switch. To him comes the phase of the power supply and from the leads to light the lamp.
The most common detection device 3 with wires and infrared sensors. Its operating principle is based on thermal radiation analysis of moving objects. A sensitive sensor reacts to heat through special amplifying lens and sends the signal to the comparator circuit.
types of sensors
Primarily differ in the way of installation:
- Wall. The working surface is parallel to the wall is limited viewing angle from 120 ° to 270 °. Range from 2 to 9 m.
- overhead. The working surface is facing down and the viewing angle is 360 °, encompassing all the space underneath. Optimal setting of 2.5 m height.
- Multifunctional. This device can be installed anywhere. But the angle they are not circular, which imposes restrictions when mounted on the ceiling.
- Interior.
- Outer. Mounted on the outside, so the level of protection must be at least IP44.
When using a pick a place to put in a night light so that there is maximum coverage. In the field of action should get all the doors. To save energy, it makes sense to divide the main wiring and the one that goes through the sensor to the night lamp.
Schematic wiring diagram
1. The easiest option without switch.
Get cable Ls3 VVGng * 1.5 mm² in the junction box. As it is, move the two-wire cable from sensor installation site. And extends to the VVG Ls2 Cable * 1.5 mm ² on the light bulb.
Connect a box initially zeros (N - blue wire). Phase which has come from a network (L - brown wire) to connect the feeding phase of the motion sensor. Finally, connect to a switching box (L1 - red) cable from the sensor to the lamp.
2. Wiring plan paired with a switch.
It is used when there is a need for light, regardless of whether the detection system or not.
Zeros are connected similarly in a box, and the feed phase sensor and the switching phase are closed via a switch.
3. Wiring multiple sensors.
If you want to illuminate a long corridor with turns, you will need to use multiple motion sensors to cover blind spots. They are connected in parallel, the light comes on when one is activated and burns, while you remain in the detection zone.
Settings
The device may include a light, if he sees cats or dogs, sun glare, or respond to other fixtures. To avoid this, you need the correct setting. Depending on the model installed on it from 2 to 4 controllers.
With their help, change options:
- time,
- illumination,
- sensitivity.
The first is governed by the duty cycle timer. It can hold off the light from 3 seconds to 15 minutes. The time is counted from the last object movement.
The second option allows to set the level of illumination at which the sensor ceases to operate. When basic lighting works or afternoon.
The third control, as well as a microphone, is not installed on all models. Sensitivity changes the operation range and allows you to not respond if the object of the activity is insignificant.
Intelligent electronics increases the comfort of use of lighting and ventilation and to reduce spending on electricity. Motion sensors are more functional and comfortable for the lighting control than conventional devices.