Calculated Industries ElectriCalc Pro Manual de usuario
Pocket RefeRence Guide
— 1
ELECTRICALC®PRO
The ElectriCalc®Pro is an invaluable
calculator for today’s busy electrical
professional. It has intuitively labeled
“electrical keys” and conforms to 1996
through 2014 and future National
Electrical Codes. The most common
NEC tables are now at your ngertips!
The ElectriCalc®Pro instantly
solves for:
•
Volts, Amps, Volt-Amps,
Watts, PF%, and EFF%
•
Cu and Al Wire Sizes
•
Parallel and Derated Wire
Sizes
•
Voltage Drop Wire Sizes, and
Lengths
•
Kilowatt hours and BTU’s
•
Parallel Resistance
•
Grounding Conductors
•
Motor FLC
•
Fuse/Breaker Sizes
•
Conduit Sizes
•
And much more!
Pocket RefeRence Guide — 3
TABLE OF CONTENTS
GETTING STARTED.......................... 4
KEY DEFINITIONS ..................................4
Basic Function Keys .............................4
Mode Set-up Keys .................................6
Electrical Keys .......................................6
Motor Keys.............................................8
Wire Sizing Keys....................................8
Voltage Drop Keys .................................9
Grounding Conductor Keys..................10
Fuse/Breaker Keys ..............................10
Conduit Sizing Keys............................. 11
PREFERENCE SETTINGS....................13
BASIC MATH OPERATIONS ............. 14
PERCENT CALCULATIONS.............. 14
MEMORY OPERATIONS.......................14
Using M+..............................................15
Using Memory Storage Keys
(M1- M9) ..............................................15
USING THE ELECTRICALC PRO ...... 15
KIRCHHOFF’S LAW ..............................15
Finding Voltage ....................................16
Finding Amps .......................................16
Finding Volt-Amps................................17
Finding kW Rating ...............................17
OHM’S LAW ...........................................18
Finding Volts ........................................18
Finding Amps .......................................18
Finding Resistance (Ohms) .................19
MOTOR FUNCTIONS ............................20
Finding Full-Load Current ....................20
Finding Motor Wire Size ......................20
AMPACITY WIRE SIZING......................21
Wire Sizing...........................................21
Pocket RefeRence Guide
— 3
Wire Sizing Based on Material Type.......22
Sizing Parallel Conductors...................23
Finding Derated Wire Size ...................24
VOLTAGE DROP ...................................25
Finding Voltage Drop ...........................25
Finding Voltage Drop Wire Size ...........26
Finding Voltage Drop Distance ............27
Finding Voltage Drop Resistance.........28
GROUND CONDUCTOR
WIRE SIZE.............................................29
EQUIPMENT GROUNDING
COUNDUCTOR WIRE SIZE ..................29
FUSE AND CIRCUIT
BREAKER SIZE .....................................30
STARTER SIZE......................................31
OVERLOAD PROTECTION SIZE..........31
CONDUIT SIZE......................................32
Finding Motor Branch-Circuit Wire Size
and Conduit Size —
Same Wire Type and Size ...................33
Finding Conduit Size —
Multiple Conductors, Different Wire Sizes
and Types ............................................34
CONVERTING KILOWATT-HOUR
AND BTU ...............................................35
PARALLEL RESISTANCE......................36
APPENDIX A —
DEFAULT SETTINGS .......................... 37
APPENDIX B —
CARE INSTRUCTIONS ....................... 38
APPENDIX C —
ACCURACY/ERRORS, AUTO
SHUT-OFF, BATTERIES, RESET........ 39
REPAIR AND RETURN........................ 42
Pocket RefeRence Guide — 5
GETTING STARTED
KEY DEFINITIONS
Basic Function Keys
On/Clear Key — Turns on
power, clears the last entry
and clears all temporary
values.
Off — Turns all power off.
Arithmetic operation keys.
-
and
Keys used for entering
numbers.
Second Function —
Used to access secondary
functions.
Store —Stores values.
-
Storage Registers —
Store values in Memory.
Recall — Used to recall
stored values and settings.
Memory Clear — Clears
M+ and displays total.
M+ — Adds value to
Accumulative Memory.
Pocket RefeRence Guide
— 5
Memory Recall —
Displays the value
saved in M+.
Memory Clear (M-R/C)
—Clears M+ without
changing current display.
Percentage — Standard
% function.
x2— Squares the value
on the display.
Backspace Function
—Used to delete entries
one keystroke at a time.
!— Calculates the
Square Root of the
displayed value.
1/x— Finds the
Reciprocal of a number.
Clear All — Reset all
settings, other than
preferences to default.
+/– — Toggles sign of
value.
Pi — Displays value of
(3.1415927).
Pocket RefeRence Guide — 7
Mode Set-up Keys
Prefs — Use to
dene calculator modes.
1Ø — Sets calculator to
Single-Phase mode.
3Ø — Sets calculator to
Three-Phase mode.
Amb° — Enters ambient
temperature for nding
Wire Sizes.
Copper/Aluminum
(Cu/Al) — Toggles
between Copper and
Aluminum Wire.
Free Air (FrAir) — Sets
calculator to Free Air
mode.
60°C Wire Insulation —
Sets to 60°C Wire.
75°C Wire Insulation —
Sets to 75°C Wire.
90°C Wire Insulation —
Sets to 90°C Wire.
Electrical Keys
kilo- — Used to identify
“kilo-” values.
Pocket RefeRence Guide
— 7
(cont’d)
milli- — Used to identify
“milli-” values.
Amps — Enters or calcu-
lates Amps.
Volts — Enters or
calculates Volts.
Volt-Amps — Enters or
calculates Volt-Amps.
Watts — Enters or
calculates Watts.
DC Amps (Idc) — Enters
or calculates DC Amps.
DC Volts (Vdc) — Enters
or calculates DC Volts.
DC Resistance (R) —
Enters or calculates DC
Resistance in Ohms.
Power Factor (PF%)
—Enters or calculates
Power Factor.
Theoretical Horsepower
—Enters or calculates
Theoretical Horsepower.
Efciency (Eff %) —
Enters or calculates the
Power Efciencies.
Pocket RefeRence Guide — 9
Kw-hr ►Btu —
Converts Kw-hr to Btu.
BTU to Kilowatt–Hours
(Btu ►Kw-hr) —
Converts Btu to Kw-hr.
Parallel Resistance
(Par Res) — Calculates
total Resistance of
Parallel Resistors.
Motor Keys
Ind/Sync/DC — Toggles
between Motor Types.
Motor Horsepower —
Enters or calculates
Motor Horsepower.
Starter Size (Starter) —
Displays the Starter Size.
Wire Sizing Keys
Wire Size/Ampacity —
Enters or calculates Wire
Size. Additional presses
show smaller wire size
(if Length dened),
Ampacity, Circular Mils,
and referenced table.
(cont’d)
Pocket RefeRence Guide
— 9
(cont’d)
125% Ampacity — Used
to calculate Wire Size
using 125% of Amps.
Also shows Ampacity,
Circular Mils and NEC
table reference with
repeated presses.
Parallel Size — Provides
Wire Sizes using Parallel
Conductors. A second
press displays the
Ampacity.
Derated Wire Size (D/R
Size) — Calculates
Derated Wire Sizes given
a number of wires in the
raceway. Also shows
Adjusted Ampacity,
Deration Factor and NEC
table reference.
Voltage Drop Keys
Percent Voltage Drop
—Toggles between
Actual Voltage Drop and
Percent Voltage Drop
with repeated presses.
Length — Enters or
calculates the Length
used for Voltage Drop.
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