Failure indicator for flashers

By: Greg Worrall


Electronics firm REDARC has developed a microprocessor-controlled solid state indicator flasher for detecting LED module failures, enabling compliance to ADR13/00. This

Electronics firm REDARC has developed a microprocessor-controlled solid state indicator flasher for detecting LED module failures, enabling compliance to ADR13/00.

This product is designed for use in conjunction with an indicator switch in a 12V automotive system to provide an output to the vehicle turn direction indicators, and also provides a warning of indicator lamp failure in the vehicle.

The solid state indicator flasher has a number of attractive features, including solid state switching with no moving contacts to wear out; operating the indicators at approximately 90 flashes per minute; compatibility with conventional filament lamps, LED lamps or a combination of both; also incorporates lamp failure indication - when an indicator lamp failure in the vehicle is detected, the flash rate increases to twice the normal rate, to warn the operator.

There is also a 'learn mode’ offering a simple method to set the ‘normal’ lamp load during installation, allowing the same product to be used for a number of different LED/conventional lamp configurations, it is protected against indicator short circuits;it is suitable for loads up to a maximum current of 10A - it can drive up to three 21W filament lamps per side in hazard-flasher mode; and it is sealed for prevention of moisture and dust resulting in increased reliability.

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