User's GUide — 1
TABLE OF CONTENTS
ELECTRICALC
®
PRO .......................................................................... 3
GETTING STARTED ............................................................................ 4
KEY DEFINITIONS .................................................................................4
Basic Function Keys ..........................................................................4
Mode Set-up Keys ..............................................................................5
Electrical Keys ....................................................................................6
Motor Keys .......................................................................................... 8
Wire Sizing Keys ................................................................................. 9
Voltage Drop Keys ............................................................................ 11
Grounding Conductor Keys ...............................................................12
Fuse/Breaker Keys ...........................................................................13
Conduit Sizing Keys .......................................................................... 15
PREFERENCE SETTINGS ..................................................................18
BASIC MATH OPERATIONS .......................................................... 19
PERCENT CALCULATIONS ..........................................................19
MEMORY OPERATIONS .....................................................................19
Using M+ ...........................................................................................20
Using Memory Storage Keys (M1- M9) .............................................20
USING THE ELECTRICALC PRO ....................................................21
KIRCHHOFF’S LAW ............................................................................. 21
Finding Voltage .................................................................................21
Finding Amps ....................................................................................22
Finding Current Load ........................................................................22
Finding Amps From Kilowatts ...........................................................23
Finding Volt-Amps ............................................................................. 23
Finding kVA Rating ...........................................................................24
Finding Wattage ............................................................................... 24
Finding kW Rating ............................................................................25
OHM’S LAW .........................................................................................26
Finding Volts .....................................................................................26
Finding Amps ....................................................................................26
Finding Resistance (Ohms) ..............................................................27
MOTOR FUNCTIONS ..........................................................................27
Finding Single-Phase Full-Load Current ...........................................28
Finding Motor Wire Size and Ampacity .............................................28
Finding Synchronous Motor Horsepower ..........................................29
Finding Direct Current Motor Horsepower ........................................30
(cont’d)
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