功率分析仪 WT500

Check for differences in the specifications or features of the instruments. For values that do not match when inputting a 50/60 sine wave Check whether the value is within the specifications (error) of each power ...

The Precision Power Analyzer WT3000  D/A output terminal is electrically isolated from the case. For all other models, the D/A output terminal is connected to the case.

The difference in measurement values can be attributed to the difference in calculation methods for normal mode and harmonic mode.   The voltage, current, and power in normal mode are displayed as the total of the ...

The peak value and crest factor may be unstable if they have not been captured accurately. If the peak value is not stable, neither will the crest factor be stable. The cause is the difficulty in capturing the narrow ...

In the three-phase three-wire, or 3V3A wiring scheme, the phase angle of voltage and current input to each input differs from that of the actual load because it is the line to line voltage that is measured.  In ...

• Power Analyzer/Power Meter 
• In the case of three-wire, or 3V3A wiring, or three phase power source, they do not match because it is the line to line voltage that is measured

Check for differences in the specifications or features of the instruments. For values that do not match when inputting a 50/60 sine wave Check whether the value is within the specifications (error) of each power ...

The measurement intervals of the measured I/O data must overlap exactly. Check the sync source setting. For example, route the input to a three-phase device under measurement to input elements 1-3 on the power meter, ...

The value depends on the model of the power analyzer. For Precision Power Analyzer 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 ...

The actual display update rate for the WT500 Power Analyzer will depend on the input signal and the trigger setting. In addition, there may be a very small trigger delay (several milliseconds) if the input signal does not match the ...

Check the Synch Source and Frequency Filter settings When a single-phase signal being measured fluctuates around power factor of 1.Slight fluctuations in the measured values of voltage, current, and power can cause a ...

The following may be causing the problem. 5V may have occurred during rating. Check the range setting again. DA output error can affect the values when the input is smaller than the rating. Have you checked the error ...

To use USB interface on the WT500 and WT1800 Power Analyzer from NI LabVIEW environment, you will need to use the USB driver from National Instruments. This USB driver is usually installed when you install NI-VISA and is called the ...

When the WT1600 Digital Power Analyzer is set into Integration mode, the averaged power (watt) values can be calculated and displayed. This is available only by using the User-Defined Function feature found in the MEASURE button menu.  The ...

 You can not use LabVIEW and WTviewer to communicate with the PC using same USB driver. The USB driver for LabVIEW and the USB driver for WTviewer is different. Yokogawa's YKMUSB driver is used by WTviewer ...

There are several items you will need to check and verify to solve this issue. Verify the GP-IB connectionSome instruments have a D/A output connector located next to the GP-IB connector. There have been some ...

• Power Analyzer Accuracy and Basic Uncertainty Calculator from Yokogawa Test&Measurement 
• Determine uncertainty in voltage, current, and active power (watts) measurement values
• Various frequency ranges and wiring systems

• Check the "Sync Source" and zero cross filter (frequency filter) settings.
• For the WT3000, "Sync Source" setting is irrelevant if the data update rate is 250 ms, 500 ms, 1 s, or 2 s.

The waveform may actually not be a pure sine wave. Even though a 50/60 Hz sine wave is expected, the following factors may be involved: The waveform is slightly distorted (harmonic components are mixed in) Small ...

• Power analyzers/power meters
• Binding posts on the direct current input terminals
• Prevent an open current circuit and safety hazards

• WTViewer Save Setting feature will only save WTViewer setting information
• Will NOT save the setting information of the instrument

The AC Power Input in all Yokogawa instruments is designed as a 3-pin connection (one of which is a GND pin). In some parts of the world, PCs are sold with AC power cables that are 2-pin. Often times this means the ...

• WT1800 High Performance Power Analyzer, WT500 STORE functions can only be used to record NUMERIC data   
• WT1600, WT3000 STORE functions can be used to record both NUMERIC and WAVEFORM data

• Current Knobs and Pads (Studder) Used on the Direct Input Terminals of the WT500 Part Numbers
• A9105ZG: Black Current Knob Set of 2 B9292GX: Pad (Studder) Set of 10

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 ...

Yes, please contact your nearest Yokogawa representative for more details.

The following product tutorial guides have been created for the WT and PZ Series Power Meter and Analyzer instruments and are available for download. Each tutorial contains quick and easy steps to help you get started ...

This training module covers the following topics:

• Introduction & Installation
• Connecting to Instrument
• Setup, Measure, and Analyze
• File Operations: Saving and Loading Data
• Video Demonstrations