Calculated Industries 5060 Manual de usuario

ELECTRICALC ®PRO

NEC®COMPLIANT

UPDATEABLE ELECTRICAL CODE CALCULATOR

Model 5060

User’s Guide

IMPORTANT NOTE ON

USER RESPONSIBILITY

Due to the serious nature of electrical

installations, the user of this calculator

must be certain that he or she is using

it correctly, i.e., in accordance with both

the following instructions and National

Electrical Code®requirements.

This tool was designed to work with the

2005 NEC®and future Codes, not re-

place it. Users, especially those unfa-

miliar with the Code, should exercise

appropriate caution.

If questions arise as to the correctness

of an answer given by the calculator, or

if an answer appears to conflict with the

Code, the user should always defer to

the Code.

If used responsibly and correctly, this

tool will save the user hours of tedious

calculation and look-up time, reduce

material costs, and provide safe, accu-

rate, Code-legal answers.

National Electrical Code and NEC are

registered trademarks of the National

Fire Protection Association, Inc.,

Quincy, MA 02269

User’s Guide — 1

Introducing the

ElectriCalc®Pro

Now NEC®-Updateable!

The ElectriCalc®Pro is an invaluable

calculator for today’s busy electrical

professional. Unlike a regular calcula-

tor, it has intuitively labeled “electrical

keys” and conforms to the 2005 and

future National Electrical Codes, allow-

ing you to solve Code-related problems

quickly and accurately. The most com-

mon NEC tables are now at your finger-

tips!

An important new feature of the Elec-

triCalc Pro is that it is now programmed

to accept future NEC changes, allowing

you to conveniently install future Code

editions in a few simple steps.

2 — ElectriCalc Pro

The ElectriCalc Pro instantly solves for

the following:

♦Volts, Amps, Volt-Amps, Watts,

kVA, kW, PF%, EFF%, and DC

Resistance

♦Copper or Aluminum Wire Sizes

♦Parallel and Derated Wire Sizes

♦Voltage Drop Wire Sizes, % and

Actual Voltage Drops, Voltage

Drop Distances and Wire Resis-

tances

♦Kilowatt hours and BTU’s

♦Parallel Resistance

♦Grounding Conductors Sizes

♦Motor Full-Load Amps

♦Overload Protection Sizes

♦NEMA Starter Sizes

♦Conduit Sizes

♦And much more!

User’s Guide — 3

Table of Contents

Installing NEC Updates . . . . . . . . . . . . . .4

Key Definitions . . . . . . . . . . . . . . . . . . . .5

Preference Settings . . . . . . . . . . . . . . . .25

Default Settings . . . . . . . . . . . . . . . . . .26

Basic Math Operations . . . . . . . . . . . . . .27

Percent Calculations . . . . . . . . . . . . . . .27

Memory Functions . . . . . . . . . . . . . . . .28

New 2005 Functions . . . . . . . . . . . . . . .29

Kerchoff’s Law . . . . . . . . . . . . . . . . . . .31

Motor Horsepower . . . . . . . . . . . . . . . .35

Ampacity Wire Sizing . . . . . . . . . . . . . .37

Voltage Drop . . . . . . . . . . . . . . . . . . . .45

Ground Conductor Wire Size . . . . . . . . . .51

Equipment Grounding Conductor Wire Size . .52

Fuse and Circuit Breaker Size . . . . . . . . .53

Starter Size . . . . . . . . . . . . . . . . . . . . .53

Overload Protection Size . . . . . . . . . . . .54

Conduit Size . . . . . . . . . . . . . . . . . . . . .54

Error Codes . . . . . . . . . . . . . . . . . . . . .59

Battery Information . . . . . . . . . . . . . . . .60

2005 NEC References . . . . . . . . . . . . . .61

Updating Future Code Revisions . . . . . . .61

Settings . . . . . . . . . . . . . . . . . . . . . . . .62

Warranty Repair and Return . . . . . . . . . .63

Legal Notices . . . . . . . . . . . . . . . . . . . .66

4 — ElectriCalc Pro

Installing NEC Updates

Your ElectriCalc Pro is now updateable

for future National Electrical Code®

editions that are updated every three

(3) years (next Code update is 2008).

To upgrade your unit, follow the instruc-

tions below:

1) Purchase the NEC Update from CI

(see pricing / details from CI’s Web

site: www.calculated.com or call 1-

800-854-8075). This Update is in the

form of a chip that contains the new

Code.

2) Once you receive the NEC Update

chip, you need to install it in your

ElectriCalc Pro:

a) Turn calculator off.

b) As a precaution, remove the bat-

tery (located back of calculator, top

of unit) by sliding battery door out

with your thumbnail. Set aside.

c) Using a screwdriver, pop out the

square tab located in the middle

section on the back of your calcu-

lator.

d) Replace it with the new update tab

by inserting it into the slot.

e) Replace the battery door.

f) Turn calculator on. Your calculator

is now updated and ready to use.

User’s Guide — 5

Key Definitions

Standard Calculator Functions

o— On/Clear

Turns on power. Pressing once clears

the last entry and the display. Pressing

twice clears all non-permanent values.

O — Off

Turns all power off. Clears the memory

and most internal registers.

+ – x ÷ =

Arithmetic operation keys.

0 1 2 3 4 5 6 7 8 9 •

Used for keying in numbers.

%— Percent

Four function percent key.

B Back Space Function

Used to delete entries one keystroke at

a time (unlike the On/C function, which

deletes the entire entry).

S — Second Function

Used with other keys to access second-

ary functions

s— Store

Used with function keys to store values.

Displays: STOR.

6 — ElectriCalc Pro

r — Recall

Recalls a value stored in a register

(e.g., to recall voltage drop % press

r v ). Displays: RCL.

S + — Pi (π)

Constant = 3.141593

S – — Change Sign (+/–)

Toggles the sign of the displayed value

(from positive to negative or from nega-

tive to positive).

S % — x2

Squares the displayed value.

S B — Square Root ( )

Square root function.

s 0 — Cumulative Memory

Adds displayed value to Memory (e.g.,

10 s0,20s0, r 0 = 30). To

subtract from memory, you must add a

negative value to the cumulative

memory (e.g.,10 s0, 5 S–,

s0, r0= 5). Clears when the

calculator is shut off.

r 0 — Memory Recall

Displays the value saved in (M+).

r r — Display/Clear Memory

Displays and clears the value saved in

(M+).

User’s Guide — 7

Sr — Clear Memory

Clears the value saved in (M+) without

changing displayed value.

Mode Set-up Functions

S x — Clear All

Clears all values, including Memory.

Resets settings to default values, except

preference settings which are retained.

S ÷ — Preferences

Use to set default settings or modes

(see “Preference Settings” page 26).

S 1 — Single-Phase (1Ø)

Sets calculator to single-phase mode.

Displays: 1Ø.

S 3 — Three-Phase (3Ø)

Sets calculator to three-phase mode.

Displays: 3Ø.

S 2— Ambient Temperature (Amb°)

Permanently enters ambient tempera-

ture for determining ampacity derived

wire sizes. Ambient temperature will

only change when entering a new value

or by resetting the calculator. Defaults

to 30°C (86°F). Amb° will display when

the ambient temperature is other than

30°C (86°F). Displays: Amb°.

8 — ElectriCalc Pro

NOTE: The temperature units can be

displayed in Celsius (°C) or Fahrenheit

(°F) by using the preference function

S ÷.

S 4 — Copper/Aluminum

Used to toggle between copper (de-

fault) and aluminum wire types. When

the wire type is revised, any calculated

wire size will be re-calculated automati-

cally. If a wire size is entered with the

wrong wire type, pressing S 4 will

change the material type without

changing the size.

Displays: Al or Cu.

S 5 — Free Air (FrAir)

Sets calculator into Free Air mode,

which refers to NEC Table 310-17 for

wire size calculations. Displays: FrAir.

S 6 — 60°C Wire Insulation

Sets calculator to 60°C wire insulation

type for wire size calculations. This is

the default setting.

Displays: 60.

S 7 — 75°C Wire Insulation

Sets calculator to 75°C insulation type

for wire size calculations.

Displays: 75.

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