Noise sensor (PZA)
Ambient noise sensor, 2-unit aluminum plate mounting option
The Model 540S IED Remote Sensor is a component of the IED Environmental Analysis System. It works with the 500 Series Announcement Control System, the Titan 9000 Series Digital Audio Platform, and the TIPS 8000 Series System. The function of the 540S is to detect the ambient sound level (desired signal level plus unwanted background level) in the areas to be monitored, convert this level, and send this information back to the 540 Environmental Analysis System. The 540S consists of an omnidirectional condenser microphone, a preamplifier, and an analog conversion module. The analog conversion module converts the audio signal into a variable DC waveform for use by the system. The 540S-2 includes a 2-gang brushed aluminum mounting plate for easy installation.