Checking the Calibration

1. Fit the calibrator onto the microphone as shown opposite.
2. Switch the Calibrator on.
3. Select Calibrate in the menu and press OK.

The meter will automatically check its calibration and make any adjustments. If there are any major problems with the meter or microphone capsule it will report an error.

The results of the calibration are stored and can be viewed on the display or downloaded using the software provided.

Making a Basic Noise Measurement

1. Position the microphone.
2. Select a suitable measurement range using the Range key.
3. Press the key to start the measurement.
4. To finish the measurement press the key.

The results of the measurement can be read from the display. The measurement is automatically stored so that it can be viewed again later or it can be downloaded to the software.

Making Timed Measurements

The Sound Level Meter can be set to make timed and repeating measurements automatically. To make long measurements easier the meter can be mounted on a standard camera tripod (option CT1).

1. Using the menu options, set the measurement time (e.g. 15 minutes).
2. Select the Repeat option to make multiple noise measurements.
3. Press the key to start the meter running.

The Sound Level Meter will now make repeating measurements, automatically storing each one. The resulting measurements can be viewed later on screen or downloaded to a computer using the software supplied.

Download the Measurements

The measurements can be viewed on the meter's display. However, it is often more convenient to connect the meter to a computer and download the measurements using the software and cable that are included.

The Deaf Defier software can store the results for further analysis and present various noise reports. For more information please visit the software web page.