Calculated Industries ElectriCalc LT Manual de usuario

ElectriCalc

An Electrician's Utility for Wiring

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

1999 NEC®, not replace it. Users, espe-

cially those unfamiliar 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®LT

The

ElectriCalc

is an invaluable

calculator for today’s busy electrical

professional. Unlike a regular calculator,

it has intuitively labeled “electrical keys”

and conforms to the 1999

National

Electrical Code,

allowing you to solve

Code-related problems quickly and

accurately. Common NEC tables are

built in, providing instant solutions for

the following:

♦Volts, Amps, Volt-Amps, Watts,

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

Resistance

♦Copper or Aluminum Wire Sizes

♦Parallel & Derated Wire Sizes

♦Voltage Drop Wire Sizes, % and

Actual Voltage Drops, Voltage

Drop Distances and Wire Resis-

tances

♦Grounding Conductors Sizes

♦And much more!

2 — ElectriCalc LT

Table of Contents

Key Definitions

................................

.................

Default Settings

................................

..............

Basic Math Operations

................................

Percent Calculations

................................

......

Memory Functions

................................

.........

Kerchoff’s Law

................................

................

Ampacity Wire Sizing

................................

.....

Voltage Drop

................................

...................

Error Codes

................................

.....................

1999 NEC References

................................

.....

Battery Information

................................

........

Settings

................................

...........................

Warranty

................................

..........................

Legal Notices

................................

..................

User's Guide — 3

Key Definitions

Standard Calculator Functions

[On/C] — On/Clear

Turns on power. Pressing once clears

the last entry and the display. Pressing

twice clears all non-permanent values.

[Off] — Off

Turns all power off. Clears the memory

and most internal registers.

[Set] — Second Function

Accesses the secondary functions

shown above the keys when pressed

prior to selection.

[Rcl] — Recall

Recalls a value stored in a register

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

[Rcl] [VD%]).

[Rcl] [Rcl] — Display/Clear Memory

Displays and clears the value saved in

(M+).

[Set] [Rcl] — Clear Memory

Clears the value saved in [M+] without

changing displayed value.

4 — ElectriCalc LT

[M+] — Cumulative Memory

Adds displayed value to Memory (e.g.,

10 [M+], 20 [M+], [Rcl] [M+] = 30).

Clears when the calculator is shut off.

[Set] [M+] — Memory Minus (M−)

Subtracts the displayed value from

Memory.

[+] [–] [x] [÷] [=]

Arithmetic operation keys.

[Set] [–] — Change Sign (+/–)

Toggles the sign of the displayed value

(from positive to negative or from nega-

tive to positive).

[Set] [÷] — Reciprocal (1/x)

Reciprocal, or 1/x function.

[0] – [9] & [ • ]

Digits used for keying in numbers.

[Set] [ . ] — x2

Squares the displayed value.

[%] — Percent

Four function percent key.

[Set] [%] — Square Root ( x )

Square root function.

User's Guide — 5

Mode "Set-Up" Functions

[Set] [x] — All-Clear (AC)

Resets all settings and values to their

default settings.

[CU/AL] — Copper/Aluminum

Used to toggle between copper (default)

and aluminum wire types. When the

wire type is revised, any calculated wire

size will be re-calculated automatically.

If a wire size is entered with the wrong

wire type, pressing [CU/AL] will change

the material type without changing the

size.

Displays: Al or Cu

[Set] [1] — Single-Phase (1Ø)

Sets calculator to single-phase mode.

Displays: 1Ø.

[Set] [3] — Three-Phase (3Ø)

Sets calculator to three-phase mode.

Displays: 3Ø.

[Set] [6] — 60°C Wire Insulation

Sets calculator to 60°C wire insulation

type for wire size calculations. This is

the default setting. Displays: 60.

[Set] [7] — 75°C Wire Insulation

Sets calculator to 75°C insulation type

for wire size calculations. Displays: 75.

6 — ElectriCalc LT

[Set] [9] — 90°C Wire Insulation

Sets calculator to 90°C insulation type

for wire size calculations. Displays: 90.

[Set] [2] — Ambient Temperature

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 ([Set] [x]).

Defaults to 30°C (86°F). Amb° will dis-

play when the ambient temperature is

other than 30°C (86°F).

Displays: Amb°.

[Set] [4] — Feet/Meters Toggle

Toggles between feet and meters.

Displays: FEET or MET.

[Set] [5] — Free Air (FrAir)

Sets calculator into Free Air mode,

which refers to NEC Table 310-17 for

wire size calculations. Revises back to

Raceway mode when calculator is pow-

ered down. Displays: FrAir.

[Set] [+] — °C/°F Toggle

Toggles ambient temperature format

between °C and °F. Converts displayed

temperature value automatically.

Displays: °C or °F.

User's Guide — 7

Electrical Functions

[kilo-] — Kilo-

This key is used with watts, amps, volts,

and volt-amps to identify "kilo-" values.

[Set] [kilo-] — Milli-

This key is used with other keys watts,

amps, volts, and volt-amps to identify

"milli-" values.

[Amps] — Amps

Enters or calculates amps (using volts

and VA or watts). Displays: AMPS,

KAMP.

[Volts] — Volts

Enters or calculates volts (using amps,

HPth, and VA or watts). Default value is

240 volts. Displays: VOLT, KV, or mV.

[Set] [Volts] — DC Resistance

Calculates and displays DC resistance.

Displays: OHMS.

[VA] — Volt-Amps

Enters or calculates volt-amps (using

amps, volts and horsepower or watts).

Displays: VA, KVA, or mVA.

8 — ElectriCalc LT

[Watts] — Watts

Enters or calculates watts (using amps,

volts, and VA or horsepower).

Displays: WATT, KW, or mW.

[Set] [Watts] —Power Factor

Enters or calculates power factor per-

centage (based on watts and VA). De-

faults to 100%. Entered or calculated

power factors greater than 100% will

result in an error. Displays: PF%.

[HPth] — Horsepower (Theoretical)

Enters or calculates theoretical horse-

power (based on Amps, VA, watts, effi-

ciency%, PF%, and/or volts). 1.0 HPth

correlates to 746 watts at 100% effi-

ciency. Displays: HPth.

NOTE: This horsepower should not be

confused with the motor horsepower

keys used to determine motor load.

[Set] [HPth] — Efficiency

Enters or calculates the percent ratio

between real power (watts) and theo-

retical horsepower. Default: 100%. En-

tered or calculated efficiencies greater

than 100% will result in an error. Dis-

plays: EFF%.

Tabla de contenidos

Otros manuales de Calculadora de Calculated Industries

Calculated Industries

Calculated Industries ConcreteCalc Manual de usuario

Calculated Industries

Calculated Industries 4030 Manual de usuario

Calculated Industries

Calculated Industries 3423 Manual de usuario

Calculated Industries

Calculated Industries Construction Master 5 Manual de usuario

Calculated Industries

Calculated Industries Qualifier Plus IIcx Manual de usuario

Calculated Industries

Calculated Industries 8305 KitchenCalc Pro Manual de usuario

Calculated Industries

Calculated Industries Pocket Handyman IV Manual de usuario

Calculated Industries

Calculated Industries Construction Master IV Manual de usuario

Calculated Industries

Calculated Industries PlumbingCalc Pro Manual de usuario

Calculated Industries

Calculated Industries PIPE TRADES PRO 4095 Manual de usuario

Calculated Industries

Calculated Industries Measure Master 4018 Manual de usuario

Calculated Industries

Calculated Industries 8527 Manual de usuario

Calculated Industries

Calculated Industries Hot Rod Calc 8703 Manual de usuario

Calculated Industries

Calculated Industries ULTRA MEASURE MASTER 8020 Manual de usuario

Calculated Industries

Calculated Industries Time Master II Manual de usuario

Calculated Industries

Calculated Industries Construction Master ConcreteCalc Pro 4225 Manual de usuario

Calculated Industries

Calculated Industries 4325 Manual de usuario

Calculated Industries

Calculated Industries 6260 Manual de usuario

Calculated Industries

Calculated Industries Construction Master IV Manual de usuario

Calculated Industries

Calculated Industries 3442 Manual de usuario

Calculated Industries

Calculated Industries Construction Master plus EZ 4067 Manual de usuario

Calculated Industries

Calculated Industries 4065 Construction Master Pro v3.0 Manual de usuario

Calculated Industries

Calculated Industries Sheet Metal/HVAC Pro Calc Manual de usuario

Calculated Industries

Calculated Industries Construction Master 5 Manual de usuario

Manuales populares de Calculadora de otras marcas

HP 35s Manual

Casio

Casio CFX-9970G Manual de usuario

LEXIBOOK

LEXIBOOK EL350 Manual de usuario

HP HP-97 Manual de usuario

Citizen

Citizen SDC-414N Manual de usuario

Casio

Casio fx-3800P Manual de usuario

Canon

Canon P26-DHIII Manual de usuario

Citizen

Citizen 520DPA Manual de usuario

Sharp

Sharp EL-9900 Manual de usuario

Casio

Casio FX-9860GII - SOFTWARE VERSION 2-00 Manual de usuario

Casio

Casio MS-7UC Manual de usuario

Sharp

Sharp WriteView EL-W506 Manual técnico

Casio

Casio FC-200 Manual de usuario

Casio

Casio fx-CG50 Manual de usuario

HP HP-67 Guía del usuario

Royal

Royal CBC2000 Manual de usuario

Heathkit

Heathkit IC-2009 Manual de usuario

Universal

Universal UNV-15907 Manual de usuario