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Panel Indicators, Pilot Lights

1.61012.0151300 Application Field and Working Principle

Panel indicators, pilot lights, are small lamps used along with other indicators to provide a very visible warning signal for an electrical circuit. They are often found in industrial and commercial settings in homes, businesses, and other places, usually mounted on the front or side of machine panels and control cabinets. In general, panel indicators are used to indicate whether a circuit is on or off, whether it’s functioning or not, and any other signals that can be used as an indication of safety, status or functional performance.

The most common type of panel indicator is the pilot light, which is a short, thin, usually cylindrical LED lamp. Pilot lights are used to provide illumination in a small area or to indicate a machine’s or system’s status. Typically, they are used to visually indicate an electrical or mechanical system’s operational status, such as whether a circuit is on or off, whether a system is operating correctly, or whether an alarm is active or not.

One of the most important applications of panel indicators is in warning systems. They can provide a quickly recognisable indication of the presence of a dangerous situation, such as the presence of an electrical hazard. For example, pilot lights may be used on circuit breakers or power strips to indicate when a circuit breaker has tripped or when a power strip has overloaded. Another application is in industrial machinery or equipment, where they can be used to indicate when the machine or equipment is on or off, when it is operating correctly, or when an alarm has been triggered.

The working principle of panel indicators is based on the same principles used in LEDs. LEDs are small, solid-state devices, composed of several layers of semiconductor material, that emit light when an electric current passes through them. In a pilot light, an LED is mounted inside a small casing or hood, and the light is focused by the hood towards the area where it is to be seen. When the current is applied to the LED, it emits a bright light that is easily seen from a distance.

Panel indicators provide a very cost effective and reliable way to show the status of a system quickly and easily. They are a simple and convenient way to warn of potential hazards, provide guidance, or indicate an alarm condition. Furthermore, they are very energy efficient, so they will not raise electricity bills, and they are extremely durable, so they will last for many years.