KNOWLEDGEBASE
(42) Results were found. Showing 11-20.
Why are There Binding Posts on the Direct Current Input Terminals?
This is to prevent an open current circuit. Among non-Japanese power meters, there are products that also use safety terminals for current terminals. Safety terminals can be said to be safe because the terminal is not ex...
item: 1270 | http://tmi.yokogawa.com/my/service-support/faqs/1270/
What is the Part Number for the Current Knobs and Pads (Studder) Used on the Direct Input Terminals of the WT500?
The part numbers for the black current knobs and pads (studder) is listed below: A9105ZG: Black Current Knob Set of 2 B9292GX: Pad (Studder) Set of 10...
item: 940 | http://tmi.yokogawa.com/my/service-support/faqs/940/
When Measuring the Balanced Three-Phase Load and Displaying the Waveform, the Phase Angle of the Voltage Across Each Input Element Does Not Equal 120 Degrees
In the three-phase three-wire, or 3V3A wiring scheme, the phase angle of voltage between each input element is 60 degrees because it is the line to line voltage that is measured. Please download and refer to the attache...
item: 1260 | http://tmi.yokogawa.com/my/service-support/faqs/1260/
Why WT210/230 and WT3000 can not calculate Urms, Unm, and Udc simultaneously?
There are restrictions of the DSP hardware. WT230 and WT210 are low-cost power meters. So, a low-cost, modest performance DSP utilized.This DSP has slow calculation. WT3000 is performing complicated calculation ...
item: 1377 | http://tmi.yokogawa.com/my/service-support/faqs/1377/
Is WTViewer Supported Under the Linux Environment?
Although WTViewer is not officially supported under the Linux environment, users have successfully done so using WINE (flavor of Linux) via RS232. For connectivity to WT210/WT230, WTViewer requires that the meter be set ...
item: 1038 | http://tmi.yokogawa.com/my/service-support/faqs/1038/
What is the Difference Between the DL/DLM Series IEC Harmonic Measurement and the WT3000 IEC Harmonic Measurement via the Harmonic Analysis Software?
The IEC Harmonic analysis on the DL/DLM series oscilloscopes provides a rough analysis and estimation for harmonic testing. The scope will perform an FFT on the current waveform and can be used to measure the general cha...
item: 537 | http://tmi.yokogawa.com/my/service-support/faqs/537/
When Displaying the Harmonic Content of Each Order on the WT Series Power Analyzer, What Value is Used for the Denominator?
The value depends on the model of the power analyzer. For WT1000, WT2000, WT100, and WT200, it is fixed to the fundamental wave. For power analyzers with 7 segments LED, the relative harmonic content is fixed to the fu...
item: 642 | http://tmi.yokogawa.com/my/service-support/faqs/642/
Why Does the Measurement of Inverter Efficiency Exceed 100%?
This could be caused by any of the following: Is there any crosstalk (especially around the 2nd order)? Are there any effects of CMRR (especially around the 2nd order)? Is the location of measurement immediately next ...
item: 1266 | http://tmi.yokogawa.com/my/service-support/faqs/1266/
Why are the Input Terminals on the Rear Panel of the Power Meter?
The input terminals on all Yokogawa power meteras are located on the rear panel. This takes into account safety when handling the measuring instrument. The signal input to the power meter normally carries high voltage...
item: 1269 | http://tmi.yokogawa.com/my/service-support/faqs/1269/
How Do the Line & Frequency Filters Affect Signals Close to the Filter Cutoff Frequency?
The circuit design for the line filters used on the WT & PZ series instruments are similar to Butterworth filters but have been redesigned. We redesigned the original filtering characteristic to obtain a sharper rolloff ...
item: 912 | http://tmi.yokogawa.com/my/service-support/faqs/912/
