4.2 Viewing Power Measurements, and Changing the Measurement Configuration
62
The instrument includes a low-pass filter function to limit the measurement frequency range.
Enable the filter to remove harmonic components or extraneous noise when measuring.
Filter cut-off frequency can be selected from the following four settings, and can be set differently for each
wiring system.
The low-pass filter setting appears below [LPF] on the Measurement screen.
4.2.7 Setting the Low-Pass Filter
OFF Specified accuracy applies only at 200 kHz and below. (Default setting)
100 kHz
Specified accuracy applies only at 20 kHz and below.
except 10 kHz to 20 kHz, add ±1% rdg.
5 kHz Specified accuracy applies only at 500 kHz and below.
500 Hz
Specified accuracy applies only at 60 kHz and below.
add ±0.1% f.s.
The low pass filter rejects harmonic components and may impede accurate measurement of
power, efficiency, and loss. It is recommended to set the low-pass filter to [OFF] to allow accu-
rate measurement unless you wish to reject harmonic components.
Setting the Cut-Off Frequency on the Measurement Screen
The setting can be made from the [Vector], each [CH], [Wave + Noise], and [Select] page on the
Measurement screen.
Display any of
these pages
Press the LPF or
key to make the setting
Use this sides key. (LPF key)
Selecting the Cut-Off Frequency on the Setting screen.
Display the
[Input] page
Select with the F keys
Select a [LPF] for
the channel being
set.
About [All CH Set], see "2.2 Basic Operations" (p. 18).
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