Calculated Industries 3400 - Manual (Page 14)

Reset
If your calculator should ever “lock up,”
press Reset - a small hole located above
the
a key/upper right - using the end of
a paper clip.
Accuracy
The normal display is nine (9) digits. Each
calculation is carried out internally to 12
digits.
Auto Shut-Off and Batteries
Auto Shut-Off: After 8-12 minutes of non-
use.
Batteries Included: Two LR-43 batteries.
Battery-Life: 575 hours of actual use.
To replace the batteries, use a small Phillip’s
head screwdriver (or you can
also use a screwdriver found in
eyeglass repair kits) and
unscrew the single screw in
the center of the battery
door, located on the back of
the calculator (see diagram).
Carefully remove the battery door, remove
the old batteries from the clips and replace
them with two new LR-43 batteries. Make
sure the positive sides (+) are facing up.
Replace the battery door and re-attach the
screw.
Note: Use caution when disposing of batteries, as
they contain hazardous chemicals.
Replacement
LR-43 batteries are available at most discount or
electronics stores. Or, call Calculated Industries
at 1-800-854-8075.
P OCKET R EFERENCE G UIDE - 12
ACCURACY AND AUTO SHUT-OFF