Sound Velocity Measurements; Setting Alarm Thickness Limits - REED R7900 Manuel D'utilisation

Sound Velocity Measurements

The sound velocity of a material can be measured using a test piece with
known thickness. Select a test piece with a minimum wall thickness of
20.0mm. Turn off the minimum capturing function prior to taking
measurement.
1. Measure the test piece with a calliper or micrometer
2. Measure the test piece with the probe until it displays a value and
remove the probe
3. Adjust the display to the actual thickness with the Up or Down
Buttons and press the Velocity Button
4. The LCD will display the Sound Velocity
5. Press the Save Button to save the value

Setting Alarm Thickness Limits

This meter will alarm if the thickness measurement is out of the pre-set
limits. When the measurement is lower than the low limit or higher than
the high limit, the alarm will sound.
1. Press the Mode Button to highlight the Alarm setting on the LCD
2. Press the Enter Button to adjust the Low Limit
3. Press the Up and Down Buttons to adjust the Low Setting
4. Press the Enter Button to save the Low Setting, and to set the
High Setting
5. Press the Up and Down buttons to adjust the High Setting, and
press the Enter Button to save the setting
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