YOKOGAWA wt3000, Руководство пользователя, Страница: 325 / 384

12-11
IM 760301-01E
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App
Index
Specifications
Item Specifications
Accuracy ± (Power accuracy (or current accuracy) + timer accuracy)
Timer accuracy ± 0.02% of reading
Computation
Item Specifications
User-defined function Computes numeric data of equations (up to 20 equations) that are created by combining the
measurement function symbols and operators.
Average active power setting Set with the user-defined function.
Efficiency equation setting Computes numeric data of equations (up to four equations) that are created by combining the
measurement function symbols.
Compensation setting Computes wiring compensation, efficiency compensation, and two-wattmeter compensation.
Equation for apparent Select TYPE1, TYPE2, or TYPE3. TYPE3 is selectable only in normal measurement mode on
power and reactive power models with the advanced computation (/G6) or harmonic measurement (/G5) option.
Corrected Power Correction of active power as defined by the applicable standard IEC76-1(1976), IEEE C57.12.90-
1993, and IEC76-1(1993).
Phase difference display Select whether to display the phase difference using 180 ° lead and lag format or 360 ° format.
Delta computation Computes other numeric data of the measured circuit from the computed results of the difference of
the instantaneous values. Applicable only on models with the delta computation option.
Equation for distortion Set the denominator of factor the equation to the total waveform or fundamental waveform.
Applicable only to models with the advanced computation (/G6) or harmonic measurement (/G5) option.
Numeric Display
Item Specifications
Displayed items Displays the measurement functions of section 12.3 and those of the motor evaluation function,
delta computation, and harmonic measurement options as described in the
Expansion Function
User’s Manual IM760301-51E .
Display resolution 600000
Number of displayed items Select from 4, 8, 16, ALL, single list*, dual list*.
* Applicable only to models with the advanced computation (/G6) or harmonic measurement (/G5) option.
Scrolling of displayed items Displays up to nine pages of the numeric data of the measurement functions by page scrolling.
Display reset Resets the display order of the numeric data to default.
Waveform Display
Item Specifications
Number of display rasters 501
Display format Peak-Peak compressed data
Sample rate Approx. 200 kS/s
Waveforms can be reproduced accurately up to approximately 10 kHz.
Time axis In the range of 0.5 ms/div to 2 s/div. However, less than or equal to 1/10 of the data update rate.
Trigger • Trigger type: Edge type
• Trigger mode: Select auto or normal. Trigger automatically turns OFF when integration is in progress.
• Trigger source: Select from the voltage or current applied to the input element and external clock.
• Trigger slope: Select from (rising), (falling), or (rising and falling).
• Trigger level
•
When the trigger source is a voltage or current applied to the input element
Set in the range of
± 100% (to the top or bottom edge of the screen) from the screen center.
Resolution: 0.1%.
• When the trigger source is Ext Clk (external clock)
TTL level. For the specifications of the external clock, see section 6.3.
Vertical zoom on the Zoom in/out vertically for each voltage or current applied to the input element. Set the zoom rate in
waveform the range from 0.1 to 100 times.
Waveform display ON/OFF Select ON/OFF for each voltage or current applied to the input element.
Waveform display format 1, 2, 3, and 4 split window displays are possible.
12.5 Functions