Calculated Industries 8503 User Guide - Manual (Page 14)

Accuracy
The normal display is seven digits; fraction display four
digits. Fraction resolution displays values to the nearest
16th of an inch, unless changed by user. Each calcula-
tion is carried out internally to ten 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 screw-
driver (or you can also use a screwdriver found in eye-
glass repair kits) and unscrew the
single screw
in the center of the battery door,
located on the back of the cal-
culator (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: Replacement LR-43 batteries are available at most
discount or electronics stores. Or, call Calculated
Industries at 1-800-854-8075.
ACCURACY, AUTO SHUT-OFF,
BATTERIES AND RESET
P OCKET R EFERENCE G UIDE - 12