Scope and Multimeter Operations General Reference (Testing Strategies)
148
(kΩ) kiloohm 1 kΩ = 1000 Ω
(MΩ) megaohm 1 MΩ = 1,000,000 Ω
Amperes
(µA) microamps 1 µA = 0.000001 amps
(mA) milliamps 1 mA = 0.001 amps
(A) amps 1A = 1000 mA
(ka) kiloamps 1 ka = 1000 amps
Frequency
(MHz) megahertz 1 MHz = 1,000,000 Hertz
(kHz) kilohertz 1 kHz = 1000 Hertz
Pressure Units
(Symbol) / Description Equivalents
(psi) pounds per square inch
1 psi = 6894.757 Pa
1 psi = 0.06894757 bar
1 psi = 2.036021 inHg
(bar)
1 bar = 14.50377 psi
1 bar = 100000 Pa
1 bar = 29.52999 inHg
(Mbar) Millibar 1 Mbar = 0.001 bar
(Pa) pascal
1 Pa = 0.0001450377 psi
1 Pa = 0.00001 bar
1 Pa = 0.0002952999 inHg
(kPa) KiloPasca 1 kPa = 1000 Pa
(MPa) Megapascal 1 MPa = 1,000,000 Pa
(inHg) inches of mercury
1 inHg = 0.03386388 bar
1 inHg = 0.4911541 psi
1 inHg = 3386.388 Pa
Pressure Conversions
psi x 0.0689 = bar
psi x 6.8950 = kPa
psi x 0.0703 = kg/cm²
Electrical Units
(Symbol) / Description Equivalents bar x 14.5030 = psi
bar x 100.0000 = kPa
bar x 29.5300 = inHg (60°F)
kPa x 0.1450 = psi
kPa x 0.0100 = bar
kPa x 0.0102 = kg/cm²
kPa x 0.295299 = inHg
kg/cm² x 98.0700 = psi
kg/cm² x 0.9807 = bar
kg/cm² x 14.2200 = kPa
inHg (60°) x 0.0333 = bar
inHg (60°) x 3.3770 = kPa
inHg (60°) x 0.0344 = kg/cm²
inHg x 25.4 = mmHg
mmHg x 0.003994 = inHg
Temperature Units
(Symbol) / Description Conversions
(°C) degree Celsius °C = 0.556 x (°F - 32)
(°F) degree Fahrenheit °F = (1.8 x °C) + 32
Time Units
(Symbol) / Description Equivalents
(µs) microsecond 1 µs = 0.000001 of a second
(ms) millisecond 1 ms = 0.001 of a second
(s) second 1 s = 1000 ms
Duty % to Dwell Conversions
Duty Cycle Dwell
% 4 cyl 6 cyl 8 cyl
10 9.0 6.0 4.5
20 18.0 12.0 9.0
30 27.0 18.0 13.5
40 36.0 24.0 18.0
Pressure Conversions
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