TEXA TTC Manual página 53

The microphone must be placed at a distance from the belt not higher
than 2.5 cm.
Instructions on where/how to position the tool and the conversion tables
for oscillation frequency/voltage are provided by the vehicle manufacturer.
Minimize the background noise of the environment, to optimize
the tool performances.
Do not place the microphone on the belt.
Do not cover the microphone.
Proceed as follows:
1. Turn on the tool.
2. Place the tool with microphone pointing to the belt.
3. Hold down and release the power button.
The LED lights on and the tool begins to search for the oscillation frequency
of the belt.
The LED remains on for about 10 seconds, within which the tool can
make multiple measurements, each linked to a stress of the belt.
4. Check that there is no noise and that the frequency read on the tool is 0
Hz.
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