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Panel indicators and pilot lights are special optical indicators that are used as visual status indicators on control panels and instrument boards. They are used to provide feedback on the status of the instrument or system that is being monitored and are available in a range of different styles and sizes to suit all types of applications.

Panel indicators are designed to provide a bright, attention-getting indication of when a process or system is either running correctly or is in an alarm condition. They are typically used for the control of indicators, alarms, warning signs, and control modules. By providing a single optically bright light that can be seen from a distance, they are ideal for indicating when a parameter is out of range, or when something is not functioning correctly.

Pilot lights are usually used in the event of system failure. Typically, they display a repeating flashing pattern, which can be seen from a distance. This allows operators to quickly identify a malfunctioning system or equipment. They are usually used to indicate when the equipment requires maintenance or repair.

The working principle of a panel indicator is quite simple. An LED lamp is connected to a power source, and when the power source is activated, the LED will light up. The intensity of the LED depends on the voltage and current passing through it, and this determines the brightness of the light that is emitted. Depending on the configuration of the device, the light may stay on, off, or flash.

Similarly, the working principle of a pilot light is also quite simple. An LED lamp is connected to a switching module, and when the control module is activated, the LED will light up. The duration of the light depends on the configuration of the module, and it may stay lit for a set length of time, or it may flash repeatedly.

In conclusion, panel indicators and pilot lights are essential components of any control panel or instrument board as they provide an easy and intuitive way to indicate the status of the system or equipment. They are available in a range of different styles and sizes to suit any application, and they can be easily configured to provide the required indication. Additionally, they consume very little energy, making them an ideal choice for energy-efficient environments.

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