Calculated Industries 3401 - Manual (Page 15)

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Reset
If your calculator should ever “lock up,”
press Reset - a small hole located on the
back of the calculator - using the end of a
paper clip.
Accuracy
The normal display is nine (9) digits. Each cal-
culation is carried out internally to 12 digits.
Auto Shut-Off and Batteries
Auto Shut-Off: After 8-12 minutes of non-use.
Batteries Included: One CR-2032 battery.
Battery-Life: 575 hours of actual use.
ACCURACY AND AUTO SHUT-OFF