Model 831 Manual Non-Acoustical Inputs 19-1
CHAPTER
19
Non-Acoustical Inputs
This chapter discusses the use of external transducers and
devices to provide non-acoustical data to the Model 831.
Included are the following:
• 831-INT Interface Unit
• Weather (Wind, Temperature and Humidity)
• Location using GPS device
831-INT
For a detailed description of the
design and use of the 831-INT, see
the Larson Davis manual 831-
INT.01.
FIGURE 19-1 831-INT with Model 831 Mounted
The 831-INT is a device that connects to the Model 831
through the 831’s I/O connector and enhances the
capabilities of the 831 to include interfaces for all necessary
components of a permanent noise monitoring system. These
components include the following:
• Metrological Sensors: Wind Speed, Wind Direction,
Temperature, Humidity
• Backup Battery Management and Charging Control
• Power Management: including switch over to battery
power when mains power fails and support for solar
panels
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