reedinstrumentswww com 10Calibration SoftwareWhen the microphone or the replacement microphone cause an offset inthe reading measurement, the software needs to be calibrated, To beginthis process click on this “ ” icon. The following window will appear:The “Ajustment Value” is a single calibration value, ranging from -12.5 to12.5, the value 1.0 is equivalent to 1dB.Assuming that the reading is 0.5dB higher than the standard value, the“Ajustment Value” should be set to -0.5.Press “OK”. The following window will appear: