Hioki FT6380 Manual De Instrucciones página 36

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2.4 Measurement Procedure
Do not input current that exceeds the maximum continu-
ous input of the electric current range.
• Measurement may not be accurate in the cases below.
(1) When there is large current (of about 100 A) flow-
ing through a nearby electric line
(2) Note that a value of several tens of amperes may
be displayed when opening or closing the clamp
sensor, or when changing the electric current
range. This is not an error. It may take some time
for the display to return to zero. However, starting
measurement before the display returns to zero will
not affect measurement.
• Enable the "Filter function (Rejecting noise) (p.34)"
when conducting measurement in the cases below.
(1) When meaningless data is displayed due to noise.
(2) When using the instrument to measure special
waveforms, such as those on the secondary side of
an inverter
The instrument may not be able to perform measure-
ment in the cases below.
(1) When using input current that is 1/10 or less of the
full electric current range
(2) When measuring high frequencies with the filter
function enabled.