Timer

 

TimersTimers
TimersTimers, digital and analog, are used widely in various industrial processes to control timing of devices or monitor life cycles of devices.
Digital Timers : –
A timer is a specialized type of clock for measuring time intervals. By function timers can be categorized to two main types. A timer which counts upwards from zero for measuring elapsed time is often called a stopwatch; a device which counts down from a specified time interval is more usually called a timer or a countdown timer. A simple example for this type is an hourglass. By working method timers have two main groups: Hardware and Software timers.
Some timers sound an audible indication that the time interval has expired.
Time switches, timing mechanisms which activate a switch, are sometimes also called “timers”.
Electronic timers are essentially quartz clocks with special electronics, and can achieve higher precision than mechanical timers. Electronic timers have digital electronics, but may have an analog or digital display. Integrated circuits have made digital logic so inexpensive that an electronic timer is now less expensive than many mechanical and electromechanical timers. Individual timers are implemented as a simple single-chip computer system, similar to a watch and usually using the same, mass-produced, technology.
Many timers are now implemented in software. Modern controllers use a programmable logic controller (PLC) rather than a box full of electromechanical parts. The logic is usually designed as if it were relays, using a special computer language called ladder logic. In PLCs, timers are usually simulated by the software built into the controller. Each timer is just an entry in a table maintained by the software.
Digital timers are used in safety devices such as a gas timer

Star Delta Timer :-
More the supply voltage, more is the starting current. When connected in star, starting current is approximately 1/3 of the starting current in delta connection. At speeds near rated speed, motor current depends upon the load. And for a given load, motor current is inversly proportional to the supply voltage.
Digital Panel meters : –
A panel meter is an instrument that displays an input signal in either a digital or analog form. Many panel meters also include alarm options as well as the ability to connect and transfer data to a computer. Panel meters are available with an ethernet option which allows the panel meter reading to be accessed across a local area network (LAN) or even through the internet.
Temperature and Process Panel Meters The most common types of panel meter is one that accepts a single input and provides a digital display of the signal.
Range of Analog Timers and Digital Timers, as well as Time Switches for 24-hour, weekly, or annual time control.Analog Timers
A timer is a specialized type of clock for measuring time intervals.[1] By function timers can be categorized to two main types. A timer which counts upwards from zero for measuring elapsed time is often called a stopwatch; a device which counts down from a specified time interval is more usually called a timer[1] or a countdown timer. A simple example for this type is an hourglass. By working method timers have two main groups: Hardware and Software timers.
Some timers sound an audible indication that the time interval has expired.
Time switches, timing mechanisms which activate a switch, are sometimes also called “timers”.

Description

Timers Timers
Timers Timers, digital and analog, are used widely in various industrial processes to control timing of devices or monitor life cycles of devices.
Digital Timers : –
A timer is a specialized type of clock for measuring time intervals. By function timers can be categorized to two main types. A timer which counts upwards from zero for measuring elapsed time is often called a stopwatch; a device which counts down from a specified time interval is more usually called a timer or a countdown timer. A simple example for this type is an hourglass. By working method timers have two main groups: Hardware and Software timers.
Some timers sound an audible indication that the time interval has expired.
Time switches, timing mechanisms which activate a switch, are sometimes also called “timers”.
Electronic timers are essentially quartz clocks with special electronics, and can achieve higher precision than mechanical timers. Electronic timers have digital electronics, but may have an analog or digital display. Integrated circuits have made digital logic so inexpensive that an electronic timer is now less expensive than many mechanical and electromechanical timers. Individual timers are implemented as a simple single-chip computer system, similar to a watch and usually using the same, mass-produced, technology.
Many timers are now implemented in software. Modern controllers use a programmable logic controller (PLC) rather than a box full of electromechanical parts. The logic is usually designed as if it were relays, using a special computer language called ladder logic. In PLCs, timers are usually simulated by the software built into the controller. Each timer is just an entry in a table maintained by the software.
Digital timers are used in safety devices such as a gas timer

Star Delta Timer :-
More the supply voltage, more is the starting current. When connected in star, starting current is approximately 1/3 of the starting current in delta connection. At speeds near rated speed, motor current depends upon the load. And for a given load, motor current is inversly proportional to the supply voltage.
Digital Panel meters : –
A panel meter is an instrument that displays an input signal in either a digital or analog form. Many panel meters also include alarm options as well as the ability to connect and transfer data to a computer. Panel meters are available with an ethernet option which allows the panel meter reading to be accessed across a local area network (LAN) or even through the internet.
Temperature and Process Panel Meters The most common types of panel meter is one that accepts a single input and provides a digital display of the signal.
Range of Analog Timers and Digital Timers, as well as Time Switches for 24-hour, weekly, or annual time control.Analog Timers
A timer is a specialized type of clock for measuring time intervals.[1] By function timers can be categorized to two main types. A timer which counts upwards from zero for measuring elapsed time is often called a stopwatch; a device which counts down from a specified time interval is more usually called a timer[1] or a countdown timer. A simple example for this type is an hourglass. By working method timers have two main groups: Hardware and Software timers.
Some timers sound an audible indication that the time interval has expired.
Time switches, timing mechanisms which activate a switch, are sometimes also called “timers”.