The TLM-LED is a universal lamp alarm relay designed to sense the failure of flashing or steady LED beacon lamps or obstruction lamps. The TLM-LED monitors the operation of one to eight lamps and energizes when one or more lamps fail. All monitored lamps must be the same wattage and voltage. When properly integrated with ARC Plus or ARC Solo systems, it provides the remote lamp monitoring protection required by the FAA-AC No: 150/5345-43E.
When a lamp fails, the TLM-LED senses a decrease in current flow. After a 10s trip delay, the onboard LED glows and the two alarm outputs energize. The outputs and the LED are reset when the failed lamps are replaced and the unit is recalibrated. Removing the input voltage de-energizes the output and the LED.
