User`s guide

Making Measurements 2

Measuring AC and DC Signals

U1273A/U1273AX User’s Guide 43

Measuring AC and DC Signals

Your multimeter is capable of displaying both AC and DC

signal components, voltage or current, as two separate

readings or one AC+DC (RMS) value combined.

Set up your multimeter according to your desired

measurement (voltage or current measurement). Press the

key twice to cycle the measurement function to the

AC+DC option. Probe the test points, and read the display.

Table 2- 4 Rotary switch positions allowing AC+DC signal measurements

Legend Default function Function when is pressed

DC V

Cycles between

• AC V,

• AC+DC V, or

• DC V

DC mV

Cycles between

• AC mV,

• AC+DC mV, or

• DC mV

DC A (or mA)

Cycles between

• AC A (or mA),

• AC+DC A (or mA), or

• DC A (or mA)

DC µA

Cycles between

• AC µA,

• AC+DC µA, or

• DC µA