Larson Davis CAL150 Manual - Performing The Calibration
Manual is about: Precision Acoustic Calibrator
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16
CAL150 Technical Reference Manual
Microphone Calibration
2-3
Performing the Calibration
To calibrate the microphone, follow these steps:
Step 1
Place the instrument so that you can perform the
calibration vertically, as shown in Figure 2-1.
WARNING! Do not remove the
microphone gridcap during
calibration as this may damage the
microphone.
Step 2
Insert the proper microphone adapter fully into the
calibrator. Make sure it fits snugly.
Step 3
Insert the microphone fully into the adapter. Make
sure it fits snugly.
The preferred method for calibrating
with the CAL150 is to mount the
preamplifier in a fixed, vertical
position.
FIGURE 2-1
Vertical Positioning
Top: calibrator stands
vertically above mounted
preamplifier.
Bottom: mounted
preamplifier,
fixed vertically