Choosing A Calibrator - Larson Davis SoundAdvisor 831C Reference Manual

5.3 Choosing a Calibrator

If using a 1/4 inch
TAKE NOTE
microphone an adaptor
ADP024 is required.
FIGURE 5-6 Larson Davis CAL200
SoundAdvisor Model 831C
Larson Davis recommends the following calibrator for the
SoundAdvisor:
• Larson Davis Model CAL200: 94/114 dB @ 1 kHz
The following instances will require a correction:
• Using Free Field Microphone
• Check calibration data shipped with calibrator
• The calibrator and instrument are at a temperature other than
room temperature (23° C) or not near sea level.
• Check calibration data shipped with calibrator
• The instrument is used in one environment and moved to
another (e.g. meter moved to or from 85 kPa static pressure
elevation)
• Calibration check will need to be done in new environ-
ment.
Choosing a Calibrator 5-5