Bird Technologies SA-4000 - Manual (Page 109)

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Chapter 11 Maintenance
Cleaning
Only clean the Site Analyzer with a soft cloth
dampened with mild detergent and water. Do not use
any other type of cleaning solution.
Charging the Battery
The internal battery pack is charged while the Site
Analyzer is connected to the ac adapter or the
automobile cigarette lighter adapter. Recharging time,
from a full discharge, is approximately 4 hours.
CAUTION
Harsh or abrasive detergents, and some solvents,
can damage the display unit and labels.