## FAQ

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(35) Results were found. Showing 1-10.

### Why do I Need to use a Hub When Communicating With the Instrument via Ethernet?

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 PC d...

### Power Analyzer Accuracy and Basic Uncertainty Calculator

The Power Analyzer Accuracy and Basic Uncertainty Calculator can be used to determine the uncertainty in voltage, current, and active power (watts) measurement values for various frequency ranges and wiring systems. To u...

### Why is the Theoretical Calculated Power Factor and Phase Angle Different Than the Measured Values?

When measuring input signals of distorted waves, signals that are DC-offset or signals that include superimposed harmonic components, will result in different values for power factor and phase angle than those expected w...

### Why Doesn't WTViewer Communicate with my WT Series Power Meter via GPIB?

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 instance...

### Why is the Peak Value and Crest Factor Unstable?

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 spi...

### How do I Update the Voltage and Current Range for the PZ4000 and WT1600 Using Communication Commands?

To change the voltage range on element 1 to 30 V, send the "INPUT:VOLTAGE:RANGE:ELEMENT1 30V" command to the measuring instrument.To change the current range on element 1 to the 1 A range, send the "INPUT:CURRENT:RANGE:...

### Is the DA Output Terminal Connected to the Case of the WT Series Power Analyzer?

The 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. ...

### How do I Retrieve Specific Items From the PZ4000 and WT1600 Using the Communications Commands?

Send the "NUMERIC:FORMAT:ASCII" command This sets the data format for the data you want to read out. Measured data read out using the "NUMERIC:NORMAL:VALUE?" command is output as an ASCII string. Send the "NUMERIC:NORM...

### 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...

### 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...

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Yokogawa Deutschland GmbH
Niederlassung Herrsching
Test & Messtechnik
D-82211 Herrsching (bei München)
Tel.: +49 (0)8152 9310-0

info.herrsching@de.yokogawa.com

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