Hioki PW3336-01, Instruction Manual

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3.3 Integration
62
The instrument performs integration for the current and active power in the positive direction (Ah+, Wh+), in the
negative direction (Ah-, Wh-), and as sums (Ah, Wh) simultaneously for all channels and can display the inte-
grated value for each. Integration can be started and stopped, and the integrated value can be reset, using either
the instrument’s keys or the external control function. Additionally, by setting the integration time, it is possible to
perform timer integration in 1-minute units from 1 minute to 10,000 hours (approximately 417 days). Further-
more, it is also possible to measure the time average current and time average active power as calculated from
the integrated value at that point in time and the integration elapsed time while integration is being performed.
The effective measurement range for integration is the effective measurement range for current or active
power, and values up to the maximum effective peak voltage or maximum effective peak current (until the
PEAK OVER U or PEAK OVER I lamp lights up) are integrated as valid data.
Maximum effective peak voltage: ±600% of the voltage range (up to ±1,500 Vpeak for the 300 V, 600 V,
and 1,000 V ranges)
Maximum effective peak current: ±600% of the current range (up to ±100 Apeak for the 20 A and 50 A ranges)
Example: When performing DC current integration using the 1 A range, the current display value (A) will change
to [ o.r ] when 1.4 A is exceeded, but the effective measurement range for current integration (Ah)
extends from ±10 mA (1% of the 1 A range) to ±6 A, so the values will be integrated as valid data.
Display parameters and descriptions related to integration
Displaying the rectifier and integrated values
Internally, the following integrated values are all integrated simultaneously, regardless of the rectifier. Conse-
quently, integrated value data with simultaneity can be obtained simply by switching the display parameter.
3.3 Integration
Display parameter Description
Ah + Positive current integrated value
Ah - Negative current integrated value
Ah Sum of current integrated values
Wh + Positive active power integrated value
Wh - Negative active power integrated value
Wh Sum of active power integrated values
TIME Integration elapsed time
T.AV A Time average current (obtained by dividing the sum of current integrated values by the integration elapsed time)
T.AV W
Time average active power (obtained by dividing the sum of active power integrated values by the integra-
tion elapsed time)
Current (Ah+, Ah-, Ah)
Rectifier Integration operation and display
AC+DC
AC+DC Umn The results of integrating current RMS value data (display values) once every display update interval (200
ms) are displayed as integrated values.
DC The results of integrating sampled instantaneous data separately by polarity are displayed as integrated values.
AC
FND
[
- - - - -
] (no integrated data) is shown.
Active power (Wh +, Wh -, Wh)
Rectifier Integration operation and display
AC+DC
AC+DC Umn
The results of integrating active power values calculated once for every cycle of the selected synchroniza-
tion source separately by polarity are displayed as integrated values. This rectifier is used to integrate ac-
tive power values of cyclic waveforms.
DC
The results of integrating sampled instantaneous data separately by polarity are displayed as integrated
values. This rectifier is used to integrate active power values of non-cyclic waveforms such as a DC or oth-
ers. (When a waveform to be measured includes both a DC and an AC component, the integrated value
will not be an integration of only a DC component.)
AC
FND
[
- - - - -
] (no integrated data) is shown.