14
The external plug-in mains unit charges the built-in
rechargeable batteries in approx. 3 hours to 50 %
of the rated capacity.
You need approx. 14 hours to charge the rechar-
geable batteries. Note also that the batteries run
down in time.
Changing the rechargeable batteries
If the rechargeable battery is defect send the mea-
suring instrument to an official service point to be
changed.
Power supply
Maintenance
• Changing the flash tubes
With a small screw-driver, gently pry the
securing ring out of the groove.
Disconnect the probe from the
measuring instrument before
changing the flash tube
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