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2
Making Measurements
Measuring Frequency
Never measure the frequency where the voltage or current level exceeds the
WARNING
specified range. Manually set the voltage or current range if you want to
measure frequencies below 20 Hz.
Your multimeter allows simultaneous monitoring of real- time voltage or current
with frequency, duty cycle, or pulse width measurements.
the functions allowing frequency measurements in your multimeter.
Table 2-20
Rotary switch positions allowing frequency measurements
Legend
Defaul t function
AC V
AC mV
DC V
DC mV
DC A (or mA)
DC µA
100
is pressed
Function when
AC V with LPF
AC mV with LPF
Cycles between
– AC V,
– AC+DC V, or
– DC V
Cycles between
– AC mV,
– AC+DC mV, or
– DC mV
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)
Cycles between
– AC µA,
– AC+DC µA, or
– DC µA
Keysight U1273A/U1273AX User's Guide
Table 2-20
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