1.74.508.001/2200 Optoelectronics

Panel Indicators, Pilot Lights

1.74.508.001/2200: Application Field and Working Principle

1.74.508.001/2200 panel indicators, or commonly known as pilot lights, are devices used in panels and consoles to show user the status of the specific circuit or system that is being monitored. Depending on the system it’s signalizing, the pilot light can be of two types:

• A continuous signal pilot light emits a continuous flashing light that indicates that the system is turned on or running.
• A modulated signal pilot light emits a series of flashes, changes in colour or other changes in the light output at predetermined intervals, used to indicate that the system is in transition from one state to another.

The 1.74.508.001/2200 panel indicators, or pilot lights, are typically used for alarms and indicators in control panels along with emergency stop buttons, status lights, warning lights and make their series one of the most popular lines of pilot lights in industry.

Application Field of 1.74.508.001/2200 Panel Indicators, Pilot Lights

The 1.74.508.001/2200 series of panel indicators, or pilot lights, is suitable for indicate the state of any kind of systems, from those of industrial plants, machines and vehicles, to those of industrial and residential buildings. The flexibility of the device makes it especially suitable for those applications where the various states of the system it’s monitoring must be very obvious.

For that reason, the 1.74.508.001/2200 panel indicators, or pilot lights, are very popular in the industry for indicators on HVAC systems, on hydraulic and pneumatic systems, on diagnostic machines, but also in security systems.

Device Working Principle

The 1.74.508.001/2200 panel indicators, or pilot lights, consist of two main parts: the base unit, which contains the components that handle input and output signalling; and the indicator head, which is modular and can be changed depending on the desired output signals. The base unit is usually a three state device, with a two state indicator head.

The base unit receives signals from a power source and handles the voltage according to the output state desired. The indicator head then emits the corresponding light signals. The indicator head is designed so that the output signals are visible to the user from any direction.

The 1.74.508.001/2200 panel indicators, or pilot lights, come in a variety of models, allowing the user to choose the one that best suits their application, with features such as built in warning sounds, push-button operation, different light colours, and many more.