User`s guide

Making Measurements 2
Measuring Frequency
U1273A/U1273AX User’s Guide 81
Measuring Frequency
Your multimeter allows simultaneous monitoring of real-
time voltage or current with frequency, duty cycle, or pulse
width measurements. Table 2- 20 highlights the functions
allowing frequency measurements in your multimeter.
Never measure the frequency where the voltage or current level
exceeds the specified range. Manually set the voltage or current
range if you want to measure frequencies below 20 Hz.
Table 2- 2 0 Rotary switch positions allowing frequency measurements
Legend Default function Function when is pressed
AC V AC V with LPF
AC mV AC mV with LPF
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)
% Scale of 4-20 mA (or 0-20 mA),
or
DC A (or mA)
DC µA
Cycles between
AC µA,
AC+DC µA, or
DC µA
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