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Panel Indicators, Pilot Lights

Panel indicators, pilot lights, or simply "indicators" refer to a type of electrical switch used to indicate whether a machine is inoperable or powered. The term "indicator" can also be used to describe an electronically operated device used to indicate a state of a process. These indicators are usually found in control panels, and they come in a variety of shapes, sizes, and colors.

When a machine is powered off, the panel indicator or pilot light is usually off. When the machine is powered on, the pilot light or panel indicator will come on, showing that the machine is working. Generally, the color, shape, and size of the panel indicator or pilot light will indicate the status of the machine. For instance, red indicators usually mean that the machine is in an emergency stop/off/or pre-alarm state, while green indicators signify the machine is "on" and working as expected. Some indicators also have different colors when different levels of activity or power is detected by the indicator.

Panel indicator and pilot lights are easy to install and use. Most indicators come in two pieces, the assembly portion which attaches to the control panel, and the face portion that has the lens and LED indicator. The assembly portion is wired into the circuit of the machine and the face portion is attached to the control panel. The two pieces are then connected, and the light is turned on when the machine is activated. The LED indicator will usually blink at times to indicate that a certain process is occurring.

These indicators can be used in a multitude of applications, such as industrial machines, commercial appliances, medical devices, and even in the home. They are reliable and require no external power sources, since they draw power directly from the machines they are monitoring. Additionally, they can be used as a visual indicator of a machine\'s performance or progress.

The working principle of the panel indicator or pilot light is relatively simple. When the machine is powered on, its electrical circuit is closed and a current flows from the power source to the switch. This switch is connected to the indicator and when the current flows through it, the LED triggers the light to turn on. When the machine is powered off, the current is cut off and the LED turns off.

In conclusion, panel indicators, pilot lights, or indicators are devices used to indicate the status of a machine. They are easy to install and require no external power sources. They are used in a variety of applications and come in many shapes, sizes, and colors. The working principle of an indicator is relatively simple, as it uses an electrical circuit to power an LED indicator when the machine is powered on.

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