13-2
IM WT3001E-51EN
• Limitations on the Function and Measurement Function
In cycle-by-cycle measurement mode, internal computation is processed differently
from other measurement modes. Therefore, some functions such as waveform
and bar graph displays on the screen and storage function cannot be used in this
measurement mode. In addition, some measurement functions such as integration
and efficiency computation cannot be carried out. For a list of functions with limitations
and measurement functions that cannot be measured, see appendices 10 and 11 in
the
User’s Manual IM WT3001E-01EN
.
Note
In cycle-by-cycle measurement, the equation for apparent power and reactive power is fixed to
TYPE 2. If TYPE 1 or TYPE 3 is selected and you select cycle-by-cycle measurement mode,
the equation switches to TYPE 2. For details on the type of equations, see section 2.5 and 5.9
in the
User’s Manual IM WT3001E-01EN
.
• Data Update Interval
The data update interval setting is invalid in cycle-by-cycle measurement mode. The
display data is updated when the measurement of the specified number of cycles
is completed. The display data is not updated until then. For example, if you are
measuring a 50-Hz (20-ms) input signal for 1000 cycles, it takes at least 20 s from
the start of the measurement until the measurement is completed and the measured
values are displayed.
• Saving the Cycle-by-Cycle Measurement Data
To save the cycle-by-cycle measurement data on this instrument, select Numeric for
the item to be saved. For details, see section 9.3 in the
User’s Manual IM WT3001E-
01EN
.
13.1 Cycle-by-Cycle Measurement Function
