Time switches are an electronic device that allows the control of load with an automatic switch that switches on and off at a predetermined time. The scheduled switching on and off of the loads can help save energy when compared to operating without a timer, where the load would remain on all the time.
Time switches installin in commercial and residential buildings to regulate the lighting systems in fountains, shops, public gardens, offices, schools as well as heating as well as irrigation system. It is possible to program them for daily or weekly and also annually.
Time switches of different types
There are two kinds of time switch. Digital and analog.
An analog timer
The analog timer can control the tappets’ locations and is synchronized to the quartz battery or the frequency of the network.
Digital timer
Digital time switch fitted with an LCD, and occasionally with a key for programming so that programming keys are exchangeable.
Also, digital time switches are more accurate, and have less switching time, and additional programming options (impulsive or cyclical holidays, etc.)
Regard to the analog time switch. Furthermore, the absence of mechanical parts moving ensures an extended running reserve (years rather than hours).
Digital time switch fitted with an LCD, and occasionally with a key for programming so that programming keys are exchangeable.
Thus, digital time switches are more accurate, and have less switching time, and additional programming options (impulsive or cyclical holidays, etc.)
Regard to the analog time switch. Furthermore, the absence of mechanical parts moving ensures an extended running reserve (years rather than hours).
What is a time switch function?
The time switch will give an output from the contact switch regarding time information. This output from the time switch is usable to accomplish various tasks. (Starting the motor or turning on a light.) First, the actual time of the geographic area must set using an appropriate time-switch. Once the time enters the timing functions must indentify.
Application for switching time
Time switches should utilize in a myriad of ways. A few examples are as follows:
- Pumps that move water is an electromechanical timer according to the set-up.
- The convectors regulating by the timer according to the selected program.
- The heating and lighting systems should control by an electronic timer with two channels.
- Therefore, the beautiful lighting arrangement for the monuments and buildings of cities is controlled through the timer, which offers a variety of functions to meet the kind of effect you want.
- The systems that move the water into the fountains are controllable via a timer, which produces the appearance of sparkling waterfalls or an stylish spray. It’s a easy way.
- So, the systems that move the water into the fountains are controllable via a timer, which produces the appearance of sparkling waterfalls or an stylish spray. It’s a easy way.
- Advertising signs should display at set time frames thanks to an annual or weekly program which is controlled by a switch.
- Air circulation fans in certain zones should control through the ATe weekly timer as determined through the program’s settings.
- Barriers to road safety that prevent access to areas that are not permitted at certain times during the entire year like they can be easily managed by an hourly schedule using the time switch.
- To stop unauthorised people or animals from gaining access to areas at night.The fencing is operated via the time switchthat will be activated at specific times throughout the day.
Differential between the switch for time in addition to the the time relay
Time switch requires you to select the moment it will start operating but this timing relay always functions after calculating the duration of time.
The specific time information must set on it’s timer. For example, it could change to 16:00. If the time is 16:00, the contacts of the time switch shift position.
A delay time must set according to at least the timing relay. When when the coil in the timing relay is turned on the relay begins to count. After pre-set time passes, contacts change position.
The parameters for selection of the time switch
When choosing a timer, the these parameters must be taken into consideration:
- The type of switch. (analog or digital)
- It has a rated voltage.
- Consider the contact type. (for example 1NO 1NO/1NC)
- Also, it has a rated frequency.
- You should know the step of setting. (for ex.15 min, 1 hour)
- Consumption of power.
- Best feature is the maximum power for switching.
- Storage and operating temperature. Read more.
