Calculated Industries 5070-B User Guide - Manual (Page 2)

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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)