Idiomas disponibles
Idiomas disponibles
2
Making Measurements
Measuring Frequency
Never measure the frequency where the voltage or current level exceeds the
WARNING
specified range.
This measurement function is applicable for U1192A, U1193A, and U1194A
models only.
Your clamp meter allows simultaneous monitoring of real- time voltage or current
with frequency measurements.
– Measuring the frequency of a signal helps detect the presence of harmonic
NOTE
– Frequency is the number of cycles a signal completes each second.
– The clamp meter measures the frequency of a voltage or current signal by
64
currents in neutral conductors and determines whether these neutral
currents are the result of unbalanced phases or non-linear loads.
Frequency is defined as 1/Period. Period is defined as the time between the
middle threshold crossings of two consecutive, like-polarity edges, as shown
in the figure below.
Rise Time
+ Width
counting the number of times the signal crosses a threshold level within a
specified period of time.
Fall Time
– Width
Period
Keysight U1190A Series User's Guide
90%
50%
10%
