Operating Instructions

28
VII Maintenance
Warning: during replacing battery or measuring, keep the sensitive
mirror from scratch or dirt to avoid damaging the mirror or influencing the
measuring precision; and do not charge the replaced battery to avoid
explosion and safety accident!
Battery installation and replacement
 When the symbol flashes permanently in the display replace the
battery immediately.
Use alkaline batteries only.
Remove the batteries before any long period of non-use to avoid the
danger of corrosion.