QC-10 Calibrator

Acoustic Calibrators for Calibrating Precision Type 1 and General Type 2 Sound Level Meters. 


The 3M QC-10 Calibrator provides quick and precise field calibrations for Type 1 and Type 2 sound level meters The QC-10 Calibrator provides a stable acoustic signal at a controlled frequency and amplitude to verify the accuracy of your meter in the field.The QC-10 Calibrator is used for calibration of 3M/Quest sound and noise monitors to provide quick and precise calibrations.



The 3M QC-10 Acoustic Calibrator is available for rental only.

For more information on the QC-10 Calibrator, contact your local Air-Met office.

QC-10 Acoustic Calibrator Features include:

  • One inch Coupler opening
  • 1/8 inch phone jack to check devices
  • Meets ANSI S1.40-1984 and IEC 942:1988 Class 1 standards Time lapse bar graph display
  • Output frequency of 1000Hz
  • Temperature operating range -10 to 50°C

QC-10 Acoustic Calibrator Specifications 

Standards  ANSI S1.40-1984 and IEC 942:1988 Class 1
Output Frequency  QC-10: 1000Hz
QC-20: Selectable, 250 Hz, 1000 Hz ± 2%
Output Amplitude QC-10: 114dB
QC-20: Selectable, 94 dB (1 pascal) or 114 dB ref.
20 μN/m2  (20 μPa)
Output Accuracy ±0.3 dB @ 20°C 760mmHg
Distortion  Less than 1% within Temperature and humidity operating ranges
Electrical Output 1 volt RMS sine wave, ±5% (0.4dB)
Output impedance = 1000 ohms. Phone jack (1/8") compatible 
with Switchcraft 780 plug or equivalent.
Temperature Operating range -10 to +50°C.
1 KHz: within +/-0.3 dB from +5 to 50°C
Below +5°C coefficient of SPL is 0.0 to +0.01 dB/°C ref. 20°C
250Hz: within +/-0.3 dB from +5 to 40°C
Below +5°C coefficent of SPL is 0 to 0.02 dB/°C max ref. 20°C
Storage temperature -40 to +65°C with battery removed.
Coupler Volume Coefficient A 1cc increase in coupler volume will result in a typical decrease 
in output of .27 dB @ 1kHz and .67 dB @ 250 Hz.
Humidity Relative humidity 5 to 95% with less than 0.1 dB change in output.

QC-10 Acoustic Calibrator Applications:

  • Type 1 Sound Level Meters
  • Type 2 Sound Level Meters