Measurement Operation (12)
Duty Cycle Measurement
The duty cycle measurement range is 0.01% ~ 99.99%.
To measure duty cycle:
1. Set up the Meter to measure frequency.
2. To select duty cycle, press Hz again (or until the %
symbol is shown on the display).
3. Connect the test leads across with the object being
measured.
The measured value shows on the display.
Note
l It is recommended to use mV
range.
l The polarity of trigger slope is positive.
l The attenuate amplitude of signal is different from
different measuring positions and ranges, therefore
the required input amplitude is different when
measuring duty cycle at different measuring positions
and ranges.
l When duty cycle measurement has been completed,
disconnect the connection between the testing leads
and the circuit under test.
Model UT70C: OPERATING MANUAL
27
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