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Panel Indicators & Pilot Lights

Panel indicators and pilot lights are widely used in various application fields like panels of industrial equipment, electrical panels, etc. It is used to indicate the status of a process, machine, equipment and so on. These devices include a light source, usually an LED, incandescent, neon or fluorescent lamp and the necessary wiring and external contacts for connection to the power source. They are used as warning signals and alerts against the fluctuation or malfunction of certain mechanical parts.

Working principle

The working principle of panel indicators and pilot lights is very simple. The presence of the electric field in the circuit is what makes them work. The energy of the electric field is transmitted down the electric circuit, causing a current to flow through the circuit. When the current reaches the bulb, it lights up. Similarly, when the electricity reaches the LED, it turns on the LED.

The operation of the panel indicators and pilot lights depends on the wiring used to power them. Different types of wiring have different benefits and drawbacks. For instance, if two-wire systems are used, two wires must be connected to the panel; whereas if three-wire systems are used, three wires are connected to the panel.

Moreover, according to the application field, the order in which the wires are connected affects the operation of the panel indicators and pilot lights. For example, in two-wire applications, the first wire connected to the power source is usually the ground, while in three-wire applications, the first wire is the "hot" wire.

The current flowing through the panel indicator or pilot light is directed by a controller or the device itself. This ensures that when the power source is switched on, the current is directed to the indicator, lighting it up. A variety of controllers that allow for a wide range of lighting levels to be used with the panel indicators and pilot lights are available.

The important feature of panel indicators and pilot lights is that they can be used in applications where space is at a premium. Since the device is small, it occupies less physical space and is more suitable for tight mounting spaces. Moreover, these devices are relatively inexpensive and require very low maintenance.

Overall, panel indicators and pilot lights are an important component of industrial control systems. They are reasonably priced, efficient, and durable and can be applied in a variety of settings. They are a great way to indicate the status of a machine, process, or equipment, and can be easily monitored.

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