Cirrus Research CR:811C - Quick Start

CR:800C Series Sound Level Meter User Manual
Page 9
3.2 Quick Start
Switch on
Key Press Display
When the instrument has switched on, the start-up screen will change to the standard
noise level display.
Calibrate the Sound Level Meter
If a microphone extension cable is to be used during a measurement, the
instrument must be calibrated with the cable attached.
Connect the Acoustic Calibrator to the Sound Level Meter and select the 94dB setting
on the Acoustic Calibrator. Press the Menu key to select the Calibrate option and press
OK to start the calibration procedure.
Key Press Display
If the calibration is successful , press the exit key to return to the main screen.