3990A7

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3990A7 is a compact panel indicator used in applications requiring an indication from a remote location. The product is an LED-based indicator, with a choice between an amber, green, or red LED. The indicator\'s housing is designed to reduce the number of components necessary, and this also helps save space on the panel. This product is suitable for use in industrial settings, as well as in consumer applications.

The working principle of the 3990A7 panel indicator is fairly straightforward. The panel indicator works by breaking a light beam, or ‘breaking the beam’. This is achieved by taking a light source, such as a laser, and then mounting the light source on the front of the indicator housing. A mirror is then mounted on the back of the housing and directed back towards the laser. When the indicator is not in use, the light beam is kept uninterrupted and the indicator remains off. However, when the indicator is switched on, the light beam is broken. This is detected by an electronic detection circuit that is built into the indicator housing, and the indicator is then illuminated.

3990A7 is an ideal panel indicator for applications that require an indication from a remote location. It is reliable and can be used in a wide range of environments, making it suitable for industrial as well as consumer applications. The product offers an easy to install and maintain solution that is designed to last a long time.

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