5.3 Power Line Frequency Manual Setting
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5
For proper electrical noise suppression, the instrument needs to be set to match the power line fre-
quency. With the default setting (AUTO), the instrument attempts to automatically detect the line fre-
quency, but manual setting is also available.
Unless the line frequency is set correctly, measured values may be unstable.
An error message appears if line noise is high enough to prevent correct frequency detection
(ERR:041(p. 181)). In that case, set the instrument’s line frequency manually.
When the AUTO setting is selected, the line frequency is automatically set to 50 or 60 Hz when the instrument
is turned on or reset.
However, automatic detection is not available when the line frequency changes after turning power on or
resetting.
If the actual line frequency deviates from 50 or 60 Hz, select the closest frequency.
Examples:
If the actual line frequency is 50.8 Hz, select the 50 Hz setting.
If the actual line frequency is 59.3 Hz, select the 60 Hz setting.
5.3 Power Line Frequency Manual Setting
1
Open the Basic Settings screen.
2
Open the System screen.
3
Select the line frequency being used.
4
Return to the Measurement screen.
The Basic Settings screen appears.
The System screen appears.
[SYSTEM]
1
Selection
2
Selection
1
2
Automatically detect local line frequency
(default)
When the line frequency is 50 Hz
When the line frequency is 60 Hz
The confirmation screen appears.
Return to the setting screen.
Save setting and return to
previous screen.
Discard setting and return to
previous screen.
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