True-Integrating Environmental Noise Monitor and Sound-Exposure Level Meter. Volume IV. Mechanical Construction and Electrical Check Out.
CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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This volume gives the assembly, adjustment, and checkout procedures necessary to construct a U.S. Army Construction Engineering Research Laboratory CERL True-Integrating Environmental Noise Monitor and Sound-Exposure Level Meter. It describes the monitors mechanical layout, wiring guidelines, adjustments to components to bring various circuits into tolerance, and steps for verifying the correct operation of the monitor. Also included are test programs to be executed by the internal microprocessor to exercise the internal circuit to help checkout or repair. Author