What is Indicator and its Example

Indicator

Essentially an indicator is a common auxiliary device and is used to provide a human readable indication of an instrument signal. And an inductor is basically a distance amplifier. Inductors are used to accurately measure small distances or angles. The indicator gives the human operator a convenient way to see what the output of the transmitter is without connecting test equipment. Furthermore, the indicators can be located away from their respective transmitters, providing a readout at a location more convenient than the location of the transmitter. Indicators are a measuring tool so they are used to indicate. And to understand what the data on the indicators actually shows, some basic understanding of elementary statistics is required. Also the ability to understand the data will help you adjust, challenge or change the indicators being used. A good indicator is a measure of an excellent system.

Indicative Example

Temperature Indicator

The temperature transmitter is designed to withstand radiation, and it transmits an electronic signal of 4 to 20 milliamps to an indicator (a device on a loop) located beyond a thick concrete wall, which blocks the radiation of the reactor, where it is safe. Human business.

Nothing prohibits connecting multiple indicators, in multiple locations, to the same 4 to 20 milliamp signal wires coming from the temperature transmitter. This allows us to display the temperature of the reactor in as many places as we want, because there is no limit to how far we can run the DC milliamp signal along the copper wires.

Numeric plus bar graph indicator

A numeric-plus-bar graph indicator is mounted on the front of the metal panel inside the control room. And this particular indicator shows the condition of the flow-control gate in the wastewater treatment facility, both by the numerical value is 98.06% and by the height of the bar graph is very close to full opening - 100%. It is wired in direct series with the same 4-20 milliamp current signal sent to the gate actuator.

Display indicator

The display indicator is a panel-mounted indicator and this indicator shows only a numerical display.

this indicators also used in Field  in industrial equipment indicators may also be used in the "field" (process) area to provide a direct indication of the measured variable if the transmitter equipment does not have its own human-readable indicator.

Field Mounted Indicators

A field-mounted indicator is connected to a field-mount that operates directly from electrical power available in a 4-20 mA loop. The numeric display of this indicator uses LCD technology instead of red-flashing LEDs to consume less electrical power.

What are indicators in electronics?

Electronic indicators: Electronic indicators translate small linear distances into rotary motion to measure quantities and are typically fixed to a magnetic base or other stationary fixture.

What is indicator and how is it used?

Indicators are measuring tools used to measure or describe a system and help paint an accurate snapshot of the system under study. Basically the data obtained from the indicators is used to understand or compare the system and improve the system.