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QC-10 and QC-20 Operator’s Manual
Thank you for choosing the Quest Technologies, a 3M company, to
meet your calibration needs. To ensure the accuracy of your sound
measuring instrumentation, 3M Quest models QC-10 and QC-20
Calibrators provide quick, precise calibration. The instruments
generate a stable acoustic signal at a controlled frequency and
amplitude to verify the accuracy of sound level meters and noise
dosimeters.
The purpose of this manual is to provide the user with the necessary
information to operate the QC-10 and QC-20 Sound Calibrators. The
entire manual should be read to fully understand the many features
this instrument offers.
This manual is not all inclusive and cannot cover all unique
situations. In addition, no warranties are contained in this manual
except as described under the warranty section.
Example of QC-20 with Cal adaptor
Cal adapter
Used with ¼” and ½’ microphones
QC-20 Calibrator
Switches used to set levels
and turn on/off calibrator.