Yokogawa wt210 digital power meter manual

For North American users please click here to learn more. The WT's advanced specifications and its wide range of functions let you handle all your measurement applications from low-frequency equipment to high frequency inverters using a single power meter. Measurement of DC Components In addition to using DC inputs, you can obtain precise measurements of signals containing DC components, such as intermittent signals and half-wave rectification signals.

You can also reduce the time per measurement for increased through put in production testing. Maximum Integration Time: 10, hours3 Time can be set between 1 second and 10, hours days in 1-second increments. Integrating Power Measurement by Polarity Power and current values can be integrated separately for positive and negative polarities. Integrated values are shown with the decimal point moving according to the integrated value.

This makes it possible to measure very low currents on such things as intermittent control equipment. Designing an instrumentation system for high current measurement requires careful consideration of the trade-offs associated with each type of sensing device. The purpose of this application note is to help engineers understand the sensing choices available and the corresponding trade-offs with each technology. Integrating Power Measurement by Polarity Power and current values can be integrated separately for positive and negative polarities.

Integrated values are shown with the decimal point moving according to the integrated value. This makes it possible to measure very low currents on such things as intermittent control equipment. Looking for more information on our people, technology and solutions?

Notice: This product was discontinued on Oct 14, Request a Quote. Technical Support. Instruction Manuals.

This necessity has led to the market demand for precisely measuring equipment's efficiency and extremely low stand-by power levels. These power meters are intended for accurately measuring the high power levels and marginally low stand-by power levels of such equipment as inverters. Figure 1 shows the external views of these power meters. The input unit consists of the voltage and current input units, which are electrically isolated from the housing.

The voltage input unit is based on resistance voltage division, while the current input unit is based on current division with resistors. Unlike the WT series with the fixed, 0. Data being measured is updated once per selected display update interval.

The user can shorten the interval to lock onto the waveform of comparatively quick load variations seen in high-frequency equipment, including inverters. Conversely, the user can also lengthen the interval to characterize cycloconverters or motors in their start-up sequence. In this characterization, the user can acquire sampled data equivalent to several periods of a signal, even in the case of signals with relatively low frequencies.

The waveform data is P-P compressed i. Thus, as many data points 1, points for normal measurement and 1, points for harmonics measurement as necessary to show waveforms on the application software screen are collected in a time-series manner. At the WT the element setting menu does not appear. In the following explanation a maximum of 50 analysis orders is assumed. Page 8. When starting storage, the recalling interval see next page is also set to the same value as the specified store interval.

Furthermore, by using the communication function, data can be output. Signal Pin No. Page 9. Contact Relay Output This instrument is equipped with four contact relays 4 ch as follows. If the relay is not operating, the NC Normally Closed contact is closed. Setting the limit values of a pair of relays e. Depending on the input signal used for determination, the instrument may display error codes i. The display is as follows, depending on whether the comparator function is set to single or dual mode.

PnL: All set-up parameters will be output. Page Example of Output to an External Printer Some sections in the following figure such as fonts and graph lines differ in appearance from the actual output. Page See the previous page. For the data output format in Page When the frequency is set by either of the following methods, only one value is measured, and that value will be output. Page For example, if the ch. Setting the Address A particular address is assigned to each device connected to the GP-IB interface so that each device can be recognized by every device.

Therefore, an address must be assigned to this instrument when it is connected to a personal computer. Page Commands Before The Ieee This interface permits remote control from a controller such as a personal computer, and output of various data.

Overview of the Serial Interface The table below shows functions that are available in each mode. Page Serial Interface Specifications Page Connecting The Interface Cable For details, refer to the following pages. Also make sure that the correct interface cable is used.

Handshaking To use an RSC interface to transfer data between this instrument and a computer, it is necessary to use certain procedures by mutual agreement to ensure the proper transfer of data. In start-stop synchronization, one character is transmitted at a time. Each character consists of a start bit, data bits, a parity bit, and a stop bit. Refer to the figure below. Refer to section However, the following commands are different.

The following setup parameters are being kept. Sets averaging type exponential or inquires about the current setting. Displays the current range. Query H? Page for CM0 measured value of both KV1. Up to four items can be number set. Page 2. Execution error 13 will occur. Query SR? Note A space or a tab can either exist or not exist between a command and a parameter. Query Commands A query command has a question mark attached to the end of the command. Page Sample Program Image Clear List1.

AddItem "Now Initializing. Page Overview Of Ieee This standard requires the following 23 points be stated in this document. This appendix describes these points. Page Program Format Section A response header sometimes precedes the response data. Response data must be separated from the header by a space. For details, refer to page Page Commands Page Responses A space must instrument returns a response message to the be included between the header and the data.

The controller. Page Synchronization With The Controller Response messages There are two kinds of command; overlap commands are expressed in the following form.

Queries all the display settings. Queries communication output settings of the normal measurement function. Queries all settings related to storing data. Executes zero-level compensation and queries the results.