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Mportant – EXFO FTB-500 User Manual

Page 287

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Maintenance

FTB-500

279

Recalibrating the Batteries

3. Connect your unit to a power outlet using the provided AC

adapter/charger or power supply.

4. Tap the Start Calibration button (the Stop Calibration button will

become available).

When a calibration step is underway, the on-screen LED preceding the
step name appears in yellow. When a step is complete, the LED turns
to green.

Once calibration is complete, the Start Calibration button becomes
available again.

I

MPORTANT

During the calibration process, the unit will turn off. Do not restart
the unit while the battery LED indicator is cycling through its
green-red-yellow sequence. This will cancel the calibration process.