Classification of Timers and Applications of timers

Classification of Timers

Timers may be classified in the following ways.

1.       According to the function performed by it. They are

               (A)    Delay timers

               (B)     Interval timers

               (C)     Repeat cycle timer

               (D)    Reset timer

2.       According to the technique used to achieve the industrial timing               

               (A)  Therrmal timers

               (B)     Electromechanical timers

               (C)     Electrochemical timers

               (D)    Mechanical timers

               (E)     Pneumatic timers

               (F)     Electronic timers

Pic 1. Electrochemical Timers

Applications of Timers

1.       Control systems

2.       Computers

3.       Measuring systems

4.       Industrial use

5.       Motor starters

6.       Communication system

7.       Clock circuits etc.