PT-1520PQ

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Alarms, buzzers, and sirens are audible warning devices often used to alert people of an emergency or potential hazard. The PT-1520PQ is a device in this category that is capable of producing sound up to 110 dB with a frequency range of 400 to 1000 Hz. It is designed for use in fire alarms, burglar alarms, signaling systems, and other applications where sound needs to be produced on demand.

The PT-1520PQ consists of an electronic control module and a horn assembly. The control module contains circuitry for the power supply, the audio amplifier, and the signal processor. The module requires a voltage of between 12 and 24 VDC, and it supplies power to the horn assembly. The output of the amplifier is then routed to the horn and produces sound at up to 110 dB.

The PT-1520PQ uses a variety of signal processing and detection features to accurately and reliably detect sound signals. It is capable of recognizing tones of different frequencies, such as continuous, impulse, periodic, and noise signals. The device can detect signals with a frequency range of 400 to 1000 Hz, and it has a signal-to-noise ratio of greater than 70 dB. The module also provides two relay contact outputs for use in alarms and control systems.

The PT-1520PQ can be used in a variety of applications, including fire alarms, burglar alarms, signaling systems, and other sound-on-demand applications. In fire alarms, the device is connected to a fire alarm panel, and it is activated when the panel detects smoke or fire. In burglar alarms, the device is connected to a motion detector, which triggers the alarm if motion is detected. For signaling systems, the device can be connected to a control panel and used to announce changes in status or conditions.

The PT-1520PQ can also be used in sound-on-demand applications. In these applications, audio signals or tones are pre-programmed into the device and then triggered by a control signal. This signal can be generated by a switch, a sensor, or a button. By connecting the device to a control button or switch, it can be used to announce messages or sound effects, such as a doorbell or warning bell.

In addition to its ability to recognize and respond to sound signals, the PT-1520PQ also features special circuits for overload protection. This feature helps to protect the device against thermal and electrical overloads, and it prevents accidental shutdown of the device due to excessive high-level sound signals.

The PT-1520PQ is a reliable and versatile device for audible warning applications. Its ability to accurately detect and respond to sound signals, as well as its overload protection feature, make it an ideal choice for a variety of applications. It is suitable for use in fire alarms, burglar alarms, signaling systems, and sound-on-demand applications.

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