Calculated Industries 4020 User Manual
Page 32
P
OCKET
R
EFERENCE
G
UIDE
— 28
Replacing the Batteries
To replace the batteries, slide open the
battery door (at top backside of unit) and
replace with new batteries. Make sure the
batteries are facing positive side up.
Reset
If your calculator should ever “lock up,”
press Reset — a small hole located above
the
l
key — to perform a total reset.
See also other documents in the category Calculated Industries Calculators, organizers:
- 4215 (64 pages)
- 4225-B (52 pages)
- 4225-C (52 pages)
- 44060 (134 pages)
- 4050 Metric Edition (44 pages)
- 4050 (52 pages)
- 4050 v3.1 (52 pages)
- 4050-F (52 pages)
- 4054 (52 pages)
- 4045-B (54 pages)
- 4045 (26 pages)
- 4067 Pocket Reference Guide (52 pages)
- 4067 User Guide (23 pages)
- 4065 v3.0 (108 pages)
- 4065 v3.1 Pocket Reference Guide Construction Master Pro (39 pages)
- 4065 v3.1 Pocket Reference Guide Advanced Consnruction-Math (40 pages)
- 4065 v3.1 User Guide (110 pages)
- 8030 (44 pages)
- 5025 (48 pages)
- 5065 (71 pages)
- 5070-A Pocket Reference Guide (45 pages)
- 5070-B Pocket Reference Guide (46 pages)
- 5070-A User Guide (66 pages)
- 5070-B User Guide (66 pages)
- 4315 (56 pages)
- 4320 (51 pages)
- 4325 (53 pages)
- 4090 (123 pages)
- 4019 (40 pages)
- 4018 (38 pages)
- 4015 (84 pages)
- 4095-A Pocket Reference Guide (36 pages)
- 4095-B Pocket Reference Guide (38 pages)
- 4095-C Pocket Reference Guide (23 pages)
- 4095-A User Guide (50 pages)
- 4095-B User Guide (68 pages)
- 4095-C User Guide (65 pages)
- 4094 Pocket Reference Guide (38 pages)
- 4094 User Guide (44 pages)
- 8545 (48 pages)
- 4400 (50 pages)
- 8015 (64 pages)
- 8020 (52 pages)
- 8025 (47 pages)