EXAPEN - How to calibrate voltage readings
In the case of non-proper voltage readings, the Tester must be calibrated.
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- Connect the red alligator clip and probe tip to the positive power connector or the positive terminal of the car`s battery. Press and hold the left button and plug in the negative connector.
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- The “Calibrating” message will appear. After a few seconds, calibration will be done. The Probe will reboot to the main menu.
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- Check the voltage readings. Both voltages will match. The RED LED will be ON.
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