10
Care
Care
Your Nexxtech 12-Digit Dual Power
Metal Top Desk Calculator is an ex-
ample of superior design and crafts-
manship. The following suggestions
will help you care for your calculator
so you can enjoy it for years.
• Keep the calculator dry. If it gets
wet, wipe it dry immediately. Liq-
uids might contain minerals that
can corrode the electronic cir-
cuits.
• Use and store the calculator only
in normal temperature environ-
ments. Temperature extremes
can shorten the life of electronic
devices, damage the battery, and
distort or melt plastic parts.
• Keep the calculator away from
dust and dirt, which can cause
premature wear of parts.
• Handle the calculator gently and
carefully. Dropping it can dam-
age circuit boards and cases and
can cause the calculator to work
improperly.
• Use only a fresh battery of the
required size and type. Batteries
can leak chemicals that damage
your calculator’s electronic parts.
• Wipe the calculator with a damp
cloth occasionally to keep it look-
ing new. Do not use harsh chem-
icals, cleaning solvents, or strong
detergents to clean the calcula-
tor.
Modifying or tampering with the cal-
culator’s internal components can
cause a malfunction and invalidate
the calculator’s warranty. If the calcu-
lator is not performing as it should,
take it to your local electronic store for
assistance.
REPLACING THE
BATTERY
Although your calculator is solar pow-
ered most of the time, the supplied
back-up battery might eventually
weaken and need replacing. If the
display speed slows down in low light,
replace the 389A battery. For the best
performance and longest life, we rec-
ommend alkaline batteries.
Warnings:
• Keep button-cell batteries away
from children. Swallowing a but-
ton-cell battery can be fatal.
• Dispose of an old battery
promptly and properly. Do not
burn or bury it.
Caution:
Use only a fresh battery of
the required size and recommended
type.
