User Guide

Pocket RefeRence Guide — 35
You may also use the ProjectCalc Plus
mx to determine the cost of materials, if you
know the material’s cost per unit. It’s a simple
calculation, but useful, as you can quickly
convert directly from a previously calculated
quantity (e.g., cubic metres) to a total Euro cost
format. See the following examples.
Cost of Concrete
How much will 10.62 cubic metres of concrete
cost, if the cost per cubic metre is quoted at 30
Pounds?
KEYSTROKE DISPLAY
o 0.
10•62mmm 10.62
CU M
x30Ç• (Cost) (Pounds) 318.60
Paint: Litres of
How many litres of paint will you need to cover
a wall measuring 5.486m x 3.048m? If it costs
6.25 Euros per litre, what will the paint cost?
KEYSTROKE DISPLAY
o 0.
5•486m
x3•048m= 16.72133
SQ M
p 1.67 LTR
x6•25Ç• (Cost) (Euros) 10.45
AUTo ShUT-off AND BATTERy
Reset
If your calculator should ever “lock up,” press
Reset — a small hole located above the b
key/upper right. Use the end of a paper clip to
press the button.
Auto Shut-Off
After 8 to 12 minutes of non-use.
Battery
Battery Included: One CR-1620 battery.
Battery Life: 575 hours of actual use.
To replace the battery, use a small Phillip’s
head screwdriver and unscrew the single
screw in the center of the battery door,
located on the back of the calculator.
Carefully remove the
battery door, remove the
old battery from the
clips, and replace it with
one new CR-1620
battery. Make sure the
positive side (+) is facing
up. Replace the battery
door and reattach the
screw.