Choosing and installing a motion sensor to turn on the light
The problem of saving energy resources is gaining special relevance today. Someone is trying to use electricity more economically for the sake of global goals, while someone is just important to save their own finances and minimize the amount of payments in electricity bills. One of the most effective solutions to cope with this task can be safely called a motion sensor to turn on the light. Indeed, in a number of rooms, as well as in open areas that require lighting, it is not at all necessary that the light be on all the time.
Light-on sensors are especially effective and convenient to use in street lighting, as well as for places where people are inconsistent, accordingly, there is no need for the light to be on all the time. So installing a motion sensor to turn on the lights is a great way to cut down on energy costs.
Types of motion sensors for lighting
Speaking about the classification criteria, first of all, it is worth mentioning the various types, depending on the conditions of use of the devices:
- The place of installation, in accordance with the parameter, is distinguished: outdoor motion sensor; sensors designed for indoor installation.
- The type of power supply from which the sensor works can be: from the electrical network (wired models); from rechargeable batteries or simple batteries (wireless devices).
- The method that underlies the detection of movements by the device.
According to the method of determining movement, they are distinguished:
- Infrared motion sensor. There is a reaction to the heat emitted by the body of a person or animals. So, false light inclusions are not excluded.
- Acoustic light switch. There is a reaction to the noise, so they can turn on from the usual sound of opening doors, a loud exclamation.
- Microwave sensors. The device generates microwaves in a predetermined range, and then monitors and senses their return, closing or opening a circuit in the presence of movement.
- Ultrasonic devices are rarely used. Since the constant exposure to ultrasound does not have the best effect on the well-being of people and animals.
It is also possible to operate a motion sensor based on a combination of motion detection methods, such devices are more reliable and accurate in operation, but they are also distinguished by a relatively high cost.
Having decided how the motion sensor works, you can easily choose the best option for installation in the courtyard of a private house, at entrances and on staircases in multi-storey buildings, in parking lots.
What to look for when choosing a motion sensor to turn on the light
So that the selected device has a simple and understandable principle of operation, and also pleases with high efficiency - a minimum of false positives. Saving electricity in the end result, it is necessary to pay attention to such technical parameters as when selecting motion sensors for switching on the light:
- Viewing angle.Depends on the place of installation - on a pole or on a wall, indoors or outdoors.
- Range of action. Depends on the type and purpose of the objects on which such a sensor is installed. Installation sites - for premises, a parameter of 5-7 meters is sufficient, while for the street you can take options with large indicators.
- How to install a motion sensor. In addition to dividing all sensors into outdoor and indoor use, they also distinguish installation methods - on ceilings, on walls in special recesses for hidden installation.
- Power and type of connected lamps... You can find conventional motion sensor lamps for your home, or choose more modern and efficient LED, gas discharge or fluorescent sensor lamps.
It will not be superfluous to pay attention to the additional functions that the light sensor can be equipped with:
- photo relay for protection against actuation during daylight hours;
- function of protection from animals (the motion sensor does not work if cats or dogs get in the field of "sight" of the device);
- light off delay period.
Whether such functions are needed or not, you need to decide at the stage of selecting devices.
Another important criterion is the degree of protection of the sensor housing. If face-to-face mounting is to be done, then you need to choose models with IP 55 and above, for indoor installation it is enough to choose models with IP parameters from 22 and above (in the range up to 55).
Where to place the motion sensor switch
In order for the sensor to work correctly and be a really useful addition to the lighting system, you need to know how to install the motion sensor correctly, what points are important to take into account.
There are a number of simple rules that must be followed:
- the device must be installed in a place where there are no other light sources that can simply interfere with the correct operation of the sensor;
- since the sensors are sensitive to air currents, there should be no air conditioners or heating devices near the place of their installation;
- the presence of large objects that create a wide area of interference during the operation of the sensor is not desirable.
Most often, motion sensors are installed on ceilings to turn on light. The installation site is chosen to minimize the size and area of the "dead" zone.
How the device is installed: possible schemes
In simple terms, the sensor is connected to a gap on the "phase" wire going to the lamp. Such a simple and understandable scheme remains optimal, justifying its performance in dark rooms where there are very few or no windows.
The connection diagram of the motion sensor for lighting assumes:
- “phase” and “zero” wires are connected to the sensor input;
- from the output of the sensor "phase" is carried out further to the lamp;
- ground is taken to "zero" from the panel or a nearby junction box.
If the installation is carried out on the street, then the installation of a photo relay or a switch is also assumed. They prevent the light from turning on and the sensor from reacting during daylight hours. The only difference between them is that:
- photo relay is a device with an automatic operating principle;
- the switch requires the "intervention" of a person in the work (the required "mode" is forcibly switched on).
All of these schemes are equally practical and effective to use. They allow you to install the motion sensor on the light quickly and easily.
Advantages of installing motion sensors to turn on the light
Preference is given to such an option for organizing lighting, where it is convenient and appropriate. Users proceed from the following advantages and benefits that are obtained as a result of installing such a sensor at their facilities:
- Rational use of electricity.
- Now there is no need to “feel” in the dark for a switch, keyhole or elevator button.As soon as you get into the range of the device, the light automatically comes on.
- Simple and straightforward installation that does not require special equipment. True, it is recommended that all these questions be entrusted to experienced electricians. No need to try to figure it out on your own, succumbing to the illusion of dubious savings.
- Among the variety presented, each client will be able to choose a suitable option according to the type of definition, as well as all other technical parameters.
- Most of the models are equipped with a set of the most useful additional functions. For example, the so-called "immunity" in animals.
- It will not be difficult to choose a device. Corresponding to the required parameters.
In order for the installed motion sensor to work properly, pleasing with its effectiveness, proper installation and adjustment of the device itself is necessary. Highly qualified specialized specialists can help with the solution of these issues. Therefore, it is worth turning to the services of professionals, not only when there is a choice to be made, but also when it is necessary to correctly configure an already installed and launched device.