Control Company 12-BIG DIGIT COMPUTER User Manual
12-BIG DIGIT COMPUTER INSTRUCTIONS
SPECIFICATIONS
Type: Hand-held, 12-digit, one memory calculator
Display:
Calculation Capacity: 12 digits in all calculations
Decimal Point System: Floating
Features: Arithmetic calculation, percent, memory,
Indication Functions: Grand Total, Memory, Error
Power: Dual power supply - solar cells and 1.5 Volt
Case: ABS plastic, drop-proof, chemical-resistant
Size/Weight: 4
STANDARD CALCULATOR KEYS
[ON/AC] Power on, reset and clear memory
[CE] Cancel entry only
[MU] Mark-up
[GT] Grand total
[OFF] Power off
[0…9] Numeric keys
[.] Decimal point key
[+] [−] [×] [ ÷] [=] Basic math functions
[%] Percent
[+/−] Sign change
[MRC] Memory recall - Depress once to recall memory
[M+] Memory plus
[M−] Memory minus
SETUP
No initial setup is required. The 12-Digit Computer is supplied with
solar cells and battery already installed. Simply flip open, using
the finger tab on the outer case, press [ON/AC] key and the
calculator is ready to use. The unit will automatically power off
after 8 minutes of non-use. When finished press [OFF] key and close
the calculator.
OPERATION
Use in the same manner as any standard calculator.
with mark-up function
1
⁄2″ 12-digit liquid crystal display (LCD)
floating decimal, ratios, grand totals, auto
power off
battery. Battery takes over when light is
insufficient for adequate power output from
solar cells.
1
⁄2 × 21⁄2 × 5⁄8 inches / 3 oz
Memory clear - Depress twice to clear memory
CALCULATIONS
[GT] Grand Total Memory: Each press of the [ =] key will automatically
add the result to the [GT] memory. To recall the [GT] memory, press the
[GT] key once. To cancel the [GT] memory, press the [ON/AC] key.
Example 1:
2 [÷] 3 [=] 0.66666666666
2 [×] 3 [=] 6
[GT] 6.66666666666
Example 2:
115 [ +] 280 [ +] 105 [=] 500 ANSWER
A 115 [÷] [GT] [%] 23 115 ( 23%)
B 280 [ ÷] [GT] [%] 56 280 ( 56%)
C 105 [ ÷] [GT] [%] 21 105 ( 21%)
Total 500 (100%)
[MU] Mark-up: Use to calculate profits and discounts.
Example 1: If a 20% discount is offered on a $10 list item, find the new
price and the dollar saving.
10 [×] 20 [+/-] [MU] display reads 8 ($8 is the new price)
[MU] display reads 2 ($2 is the saving)
Example 2: If a $10 item is to be marked-up by 20%, find the selling price
and the dollar difference.
10 [ ×] 20 [MU] display reads 12 ($12 is selling price)
[MU] display reads 2 ($2 is the difference
between $10 and $12)
ALL OPERATIONAL DIFFICULTIES
If this unit does not function properly for any reason, please replace the
battery with a new high-quality battery (see “Battery Replacement”
section). Low battery power can occasionally cause any number of
“apparent” operational difficulties. Replacing the battery with a new fresh
battery will solve most difficulties.
BATTERY REPLACEMENT
Locate the battery cover below the display. Depress the battery cover at
the arrowhead next to “OPEN”. Gently lift up the left-hand edge and pull
the battery cover out. Remove the exhausted battery and install a new
1.5 volt silver-oxide battery. Install the new battery so that the positive
side is facing upward. Carefully reposition the battery cover and snap
back into place. Replacement battery Cat. No. 1102.
WARRANTY, SERVICE OR RECALIBRATION
For warranty, service or recalibration contact:
CONTROL COMPANY
Friendswood, Texas 77546 USA
Ph. 281-482-1714 Fax 281-482-9448
Control Company is ISO 9001 Quality-Certified by DNV
and ISO 17025 accredited as a Calibration Laboratory by A2LA.
4455 Rex Road
E-mail sales@control3.com
www.control3.com
12-Big Digit Computer Instructions
92-6029-00
Rev. 1 062504
Traceable® is a registered trademark of Control Company
© 2004 Control Company
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