Multi-channel flashing signal alarms operate primarily on the principles of signal detection and conversion. Each circuit is connected to a corresponding sensor or signal source. When the monitored physical parameter—such as temperature, pressure, or liquid level—exceeds its preset normal range, the associated sensor generates an electrical signal. This signal is transmitted to the alarm’s corresponding circuit. Within the circuit, the signal is processed, identified, and amplified by the signal-conditioning electronics, which then activates the flashing-light unit to cause the indicator lamp to blink according to a preprogrammed pattern, such as rapid flashing or alternating flashes, thereby highlighting the alarm information. At the same time, the internal audio generator is triggered to emit an audible alarm at a specific frequency and sound level. By combining visual and auditory alerts, the system draws the attention of operators, enabling them to quickly locate and address any malfunctions in the equipment associated with the alarmed circuit.
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