Calculated Industries Home ProjectCalc 8510 Manual

Key Definitions

Basic Function Keys

	On/Clear Key - turns power on. Pressing once clears the display. Pressing twice clears all temporary values.
	Off - turns all power off, clearing all non-permanent registers.
	Arithmetic operation keys.
	Digits used for keying in numbers.
	Percent - four-function (+, -, x, ÷) percent.

Dimensional Unit Keys

	Yards Key - enters or converts to Yards.
	Feet Key - enters or converts to Feet as whole or decimal numbers. Also used with the and keys for entering Feet-Inch-Fraction values (for example, ). Repeated presses during conversions toggle between Feet-Inch-Fractions and Decimal Feet.
	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, ). 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).
	Meter Key - enters or converts to Meters.

Convert Key Functions

	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.
	Change Sign (+/-) - toggles displayed value between positive and negative.
	Square Root () - finds Square Root of value in display.
	Value Squared (x2) - finds Square of value in display.
	Pi (π) - constant 3.141593.

Memory

	M+ - adds or stores a value in the semi-permanent Memory (for example, ). Semi-permanent means the value is cleared when the calculator is turned off.
	M- - subtracts a value from the semi-permanent Memory (for example, subtracts 150 from the Memory).
	Memory Recall (MR) - recalls Memory value (for example, if 150 has been stored in Memory, pressing will display 150).
	Memory Clear (MC) - clears Memory value.

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 .

Fractional Resolution

Your calculator is set to display Fractional values to the nearest 16th of an Inch (default setting). Press 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 to set and exit.

Project Keys

	Paint - calculates volume of paint, based on an entered or calculated area. Finds quantity in Gallons, Quarts, or Pints with repeated presses.
	Wallpaper - calculates number of rolls of wallpaper, based on an entered or calculated area.
	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"). Note: 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.
	Carpet - calculates carpet length required, based on entered or calculated area. Repeated presses of scroll between values for 12', 13', and 15' rolls.
	Concrete - calculates the number of bags of concrete required, based on an entered or calculated volume (for example, Cubic Feet or Cubic Yards).
	Cost - allows you to calculate total material cost.

Basic Dimensional Math

Linear Conversions

Convert 15 Feet 9-1/16 Inches to other units of measure.

Convert 14.793 Decimal Inches to Fractional Inches.

Square and Cubic Conversions

Convert 25 Square Feet to other Square dimensions.

Convert 25 Cubic Feet to Cubic Yards.

Basic Dimensional Math

Adding Dimensions:

Subtracting Dimensions:

Dividing Dimensions:

Multiplying Dimensions/Waste Factor Allowance:

Finding Area/Square Feet:

Finding Volume/Cubic Feet:

Project Examples - Using Default Values

Paint: Gallons, Quarts, or Pints

How many Quarts of paint do you need to cover a wall measuring 12' x 8'? How many Pints? How many Gallons?

Wallpaper: Rolls

Find the number of wallpaper rolls needed for a wall measuring 8' x 12'.

Tiles: Quantity

How many tiles do you need to cover a floor measuring 10' x 15'? Find the number of tiles in various sizes. Also, add a 10% waste allowance, in case you need extra tile.
Note: After converting to Tile, press the key until you reach the desired tile size. The Home ProjectCalc lists 11 of the most popular tile sizes.

Continuous presses of display the number of tiles for the following additional sizes: 18", 16", 13", 12", 10", 8", 6", 4", 2", 1", 24".

Carpet: Length

Find the quantity of carpet needed to cover a floor that measures 12' 6" x 10' in area.

Concrete: Bags

Find the number of bags of concrete for a patio measuring 9' x 15' x 4".

Finding the Cost of Materials

Cost of Concrete
How much does 216 Cubic Feet of concrete cost, if the Cost Per Cubic Yard is quoted at $50?

(Cost = approx. $400)

Auto Shut-Off and Battery

Reset

If your calculator should ever "lock up," press Reset — a small hole located above the 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.

Battery Warnings

• Remove and immediately recycle or dispose of used batteries according to local regulations and keep away from children. Do NOT dispose of batteries in household trash or incinerate.
• Even used batteries may cause severe injury or death.
• Call a local poison control center for treatment information.
• Compatible battery type is CR1620 (1x 3.0V).
• Non-rechargeable batteries are not to be recharged.
• Do not force discharge, recharge, dissemble, heat above manufacturer's specified temperature rating or incinerate. Doing so may result in injury due to venting, leakage or explosion resulting in chemical burns.
• Ensure the batteries are installed correctly according to polarity (+ and -).
• Do not mix old and new batteries, different brands or types of batteries, such as alkaline, carbon- zinc, or rechargeable batteries.
• Remove and immediately recycle or dispose of batteries from equipment not used for an extended period of time according to local regulations.
• Always completely secure the battery compartment. If the battery compartment does not close securely, stop using the product, remove the batteries, and keep them away from children.

• INGESTION HAZARD: This product contains a button cell or coin battery.
• DEATH or serious injury can occur if ingested.
• A swallowed button cell or coin battery can cause Internal Chemical Burns in as little as 2 hours.
• KEEP new and used batteries OUT OF REACH of CHILDREN.
• Seek immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.

Repair and Return

Repair and Return Information
Return Guidelines:

1. If your product won't turn on, check the battery as outlined in the User's Guide.
2. If you need more assistance, please go to the following Web site: www.calculated.com/warranty

Looking for New Ideas

Calculated Industries, a leading manufacturer of special-function calculators and digital measuring instruments, is always looking for new product ideas in these areas.
If you have a new product idea, please visit our "Bright Idea" page at www.calculated.com/brightidea.asp. For suggestions about improving this product or other products, please visit us at www.calculated.com under "Contact Us." Thank you.

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