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Frequency Measurement
3.3 Frequency Measurement
During AC voltage measurement (p. 60) and AC current
measurement (p. 69), the frequency can be checked in the sub
display. The frequency display is autoranging. The AC voltage and
current ranges can be changed by pressing the RANGE key.
Frequency
• If signals out of the range of frequency measurement are
measured, [−−−−] appears.
• In a measurement environment with a large amount of noise, the
frequency may be displayed even with no input. This does not
indicate a malfunction of the instrument.
• The sensitivity of the frequency measurement is regulated by
range.
See: “5. Voltage frequency” (p. 116)
“13. Current frequency” (p. 123)
When the value is less than the minimum sensitivity voltage
(minimum sensitivity current), the indicated value may uctuate.
When the voltage (current) range is lowered, the value stabilizes.
This does not apply to cases where the value uctuates due to
noise.
• During the measurement of low frequency voltage (current), if
the auto range does not stabilize and the frequency cannot be
measured, x the voltage (current) range and measure again.
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