Calculated Industries 8509 Pocket Reference Manual

Pocket

Reference

Guide

Model 8509

Po c k e t Re f e R e n c e Gu i d e — 3

Table of Contents

Key Definitions ................................................3

Basic Function Keys .....................................3

Dimensional Unit Keys .................................3

Convert Key Functions .................................4

Memory ........................................................5

Entering Square or Cubic .............................6

Fractional Resolution....................................6

Project Keys .................................................6

Basic Dimensional Math .................................8

Linear Conversions ......................................8

Square and Cubic Conversions ...................8

Basic Dimensional Math ...............................9

Project Examples —

Using Default Values .....................................10

Paint: Gallons, Quarts, or Pints ..................10

Wallpaper: Rolls .........................................10

Tiles: Quantity .............................................11

Carpet: Length.............................................11

Concrete: Bags...........................................12

Finding the Cost of Materials .......................12

Cost of Concrete ........................................12

auto Shut-Off and Batteries .........................13

Reset ..........................................................13

Auto Shut-Off ..............................................13

Batteries .....................................................13

repair and return .........................................14

Repair and Return Information ...................14

Warranty. ........................................................15

Warranty Repair Service: U.S.A. ................15

Repair Service: Outside U.S.A.. .................15

Non-Warranty Repair Service: U.S.A. ........16

Disclaimer ...................................................17

FCC Class B ...................................................18

Looking for New Ideas ..................................18

Key Denitions

Basic Function Keys

o

On/Clear Key ─ turns power on.
Pressing once clears the display.
Pressing twice clears all
temporary values.

O

Off ─ turns all power off, clearing
all non-permanent registers.

+ – x
÷ =

Arithmetic operation keys.

0 – 9
and •

Digits used for keying in numbers.

%

Percent (%) ─ four-function
(+, -, x, ÷) percent.

Dimensional Unit Keys

y

Yards Key ─ enters or converts to
yards.

f

Feet Key ─ enters or converts to feet
as whole or decimal numbers. Also
used with the i and / keys for
entering feet-inch-fraction values (for
example, 6 f 9 i 1 / 2).
Repeated presses during conversions
toggle between feet-inch-fractions and
decimal feet.

Po c k e t Re f e R e n c e Gu i d e — 3

Key Denitions

Basic Function Keys

o

On/Clear Key ─ turns power on.
Pressing once clears the display.
Pressing twice clears all
temporary values.

O

Off ─ turns all power off, clearing
all non-permanent registers.

+ – x
÷ =

Arithmetic operation keys.

0 – 9
and •

Digits used for keying in numbers.

%

Percent (%) ─ four-function
(+, -, x, ÷) percent.

Dimensional Unit Keys

y

Yards Key ─ enters or converts to
yards.

f

Feet Key ─ enters or converts to feet
as whole or decimal numbers. Also
used with the i and / keys for
entering feet-inch-fraction values (for
example, 6 f 9 i 1 / 2).
Repeated presses during conversions
toggle between feet-inch-fractions and
decimal feet.

(cont'd)

Po c k e t Re f e R e n c e Gu i d e — 5

i

Inch Key ─ enters or converts to
inches. Entry can be whole or decimal
number. Also used with the / key for
entering fractional inch values (for
example, 9 i 1 / 2). Repeated
presses during conversions toggle
between fractional and decimal
inches.

/

Fraction Bar Key ─ used to enter
fractions. Fractions can be entered as
proper (1/2, 1/8, 1/16) or improper
(3/2, 9/8).

m

Meter Key ─ enters or converts to
meters.

Convert Key Functions

Ç

Convert Key ─ used with the
dimensional unit keys to convert
between dimensions, the
project keys to calculate
material quantities, or with other
keys to access special functions.

Ç –

Change Sign (+/

-

) ─ toggles

displayed value to positive or
negative.

(cont'd)

Ç ÷

Square root (

square root of value in display.

Ç x

Value Squared (x

square of value in display.

Ç %

Pi (

Memory

Ç +

M+ ─ adds or stores a value in
the semi-permanent memory (for
example, 1 5 0 Ç +).
Semi-permanent means the
value is cleared when the
calculator is turned off.

Ç –
Ç +

M- ─ subtracts a value from the
semi-permanent memory
(for example, 1 5 0 Ç –
Ç + subtracts 150 from the
memory).

Ç =

Mr ─ recalls memory value (for
example, if 150 has been stored
in memory, pressing Ç = will
display 150).

Ç o

MC ─ clears memory value.

Po c k e t Re f e R e n c e Gu i d e — 5

Ç ÷

Square root (

√

¯

x) ─ finds

square root of value in display.

Ç x

Value Squared (x

2

) ─ finds

square of value in display.

Ç %

Pi (

π

) ─ constant 3.141593.

Memory

Ç +

M+ ─ adds or stores a value in
the semi-permanent memory (for
example, 1 5 0 Ç +).
Semi-permanent means the
value is cleared when the
calculator is turned off.

Ç –
Ç +

M- ─ subtracts a value from the
semi-permanent memory
(for example, 1 5 0 Ç –
Ç + subtracts 150 from the
memory).

Ç =

Mr ─ recalls memory value (for
example, if 150 has been stored
in memory, pressing Ç = will
display 150).

Ç o

MC ─ clears memory value.

Po c k e t Re f e R e n c e Gu i d e — 7

Entering Square or Cubic

To label a dimension as “square” or “cubic,”
enter the value, then press the desired
dimension key twice for square and three
times for cubic. For example, to enter 25
cubic yards, press 2 5 y y y.

Fractional resolution

Your calculator is set to display fractional
values to the nearest 16th of an inch
(default setting). Press Ç / to access
the fractional resolution setting. Repeated
presses of / then revolve through the
available settings: 1/16, 1/32, 1/64, 1/2, 1/4,
and 1/8. Press o to exit.

Project Keys

p

Paint ─ calculates volume of paint,
based on an entered or calculated
area. Finds quantity in gallons,
quarts, or pints with repeated
presses.

w

Wallpaper ─ calculates number of
rolls of wallpaper, based on an
entered or calculated area.

t

Tile ─ finds the number of tiles,
based on an entered or calculated
area. Repeated presses scroll
between numbers of tiles for

various standard tile sizes (18″,
16″, 13″, 12″, 10″, 8″, 6″, 4″, 2″, 1″,
and 24″).

Tile sizes are shown in inches, not

square inches. In other words, a 6″
tile is really 6″ x 6″, or a 36 square-
inch tile, but it is labeled as a 6″

size.

c

Carpet ─ calculates carpet length
required, based on entered or
calculated area. Repeated presses
of c scroll between values for

12′, 13′, and 15′ rolls.

C

Concrete ─ calculates the number
of bags of concrete required,
based on an entered or calculated
volume (for example, cubic feet or
cubic yards).

Ç •

Cost ─ allows you to calculate
total material cost.