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5.3 Calibration:
Long press on the“CAL/CLR” key until 4.00 appears with “CAL” flashing at the bottom. Take 4.00
standard calibrating piece at the 5900m/s until the “CAL” disappears.
5.4 Sound speed measuring:
How to determine the sound speed of a certain material with piece of given depth: Measure the
depth of the material with caliber or micrometer. Select a preset speed close with the measured and
couple the sensor with the block with given thickness until a value is given, remove the
sensor and adjust the value with Up or Down key to make it equaling with the actual thickness
value. Press the “CAL /CLR” key to display the measured speed and save the value to the current
unit automatically. The thickness must be sufficient for measuring that is at least 25.0mm.
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