PCB Piezotronics Larson Davis NMS044 User Manual

NMS044 Reference Manual Calibrating the Sound Level Meter 27
3.6 Calibrating the Sound Level Meter
Refer to your calibrator and microphone-preamplifier product manuals for specific
requirements in performing the acoustic calibration.
TAKE NOTE For best results, use Larson Davis Precision Acoustic Calibrators
and Larson Davis Microphone-Preamplifiers.
TAKE NOTE We recommended that you calibrate the 831C after deploying the
system.
Step 1. Holding the windscreen and birdspike together, unscrew the assemblies until
they come apart.
Step 2. Place the calibrator gently over the microphone to avoid sudden large pressure
changes to the diaphragm.
Step 3. On the sound level meter, navigate to Tools 3  Calibrate.
Step 4. Select the calibrator from the Select Calibrator drop-down menu.
Step 5. If the calibrator settings need to be modified, click Edit Settings, make any
necessary changes, then verify that the settings correspond to those described
in the calibrator’s manual.
Step 6. Press the power button on the calibrator.
Step 7. On the meter, select Do Calibration.
Figure 3-11 Acoustic Calibration

PCB Piezotronics Larson Davis NMS044 Specifications

General

Brand	PCB Piezotronics
Model	Larson Davis NMS044
Category	Measuring Instruments
Language	English