User Manual

User’s Guide — 47
Finding Voltage Drop
Resistance
What is the resistance of 85 feet of #2
90°C copper conductor?
Steps Keystrokes Display
Reset calculator [Set] [x] [On/C] 0.
Set to 90°C mode [Set] [9] 3Ø 90 Cu 0.
Enter wire size 2 [WireSz] 2 CU
AWG WIRE SIZE
Find resistance [Set] [Length] 0.2033993
OHMS WIRE
Find 85 ft resist* [÷] 1000 [x] 85 [=] 0.0172889
*NOTE: Given resistance per 1000 feet,
divide by 1000 to get a per foot resis-
tance, then multiply by 85.
Finding DC Resistance
What is the equivalent resistance of a
12 volt DC circuit pulling 5 amps?
Steps Keystrokes Display
Reset calculator [On/C] 0.
Enter voltage 12 [Volts] 12. VOLT
Enter amps 5 [Amps] 5. AMPS
Find resistance [Set] [Volts] 2.4 OHMS
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