Options expand precision power analyser

A number of new features are now available to boost the measurement and communications functions of the Yokogawa WT3000 precision power analyser.

A number of new features are now available to boost the measurement and communications functions of the Yokogawa WT3000 precision power analyser.

The instrument now comes equipped with 30Mbyte of internal memory and an auto-print function as standard, and USB and Ethernet options provide enhanced communications with external PCs, peripherals and networks.

A USB port for connection to PC uses a type B connector on the rear panel of the WT3000.

Instruments with this option installed can be used in conjunction with the communication functions of Yokogawa's WTViewer software for data acquisition via the USB.

A USB port for peripherals with type A connectors can also be added.

This allows data stored in the main unit to be saved in binary or ASCII format on a peripheral such as a USB storage device.

It also allows a keyboard to be connected for easy input of user-defined mathematical expressions.

The Ethernet communications function conforms to 100Base-TX and 10Base-T and provides for data exchange with PCs or networks.

The option supports file transfers via an FTP server, as well as FTP client (network drives), LPR client (network printers), and e-mail (SMTP client) functions.

The WT3000 does not have a built-in hard disk, and the FTP server function is available when a PC card or USB storage device is inserted or connected to the PC.

The expanded internal storage capability (30Mbyte) allows data on measured parameters such as voltage, current and power to be saved in binary or ASCII format on a PC card or USB storage device.

Each measured item can be stored for every data update interval (maximum 50ms), and the user can specify to store only the desired measured items, thus saving memory.

Files saved in ASCII format can be opened in general-purpose applications such as Excel, allowing display of data in graphs.

The auto-print function allows the user to set a time interval at which measured values are automatically printed on the built-in printer.

A start and stop time can also be set to allow data to be recorded over a desired time period.

The user can also choose to print only the desired measured items.

Yokogawa has also released an upgraded version of its WTViewer software (sold separately) with support for the WT3000.

WTViewer allows users to load numerical and waveform data measured by the power analyser onto a PC via GPIB, serial (RS232), Ethernet or USB communications for display, analysis and storage.

Up to four WT3000 instruments can be networked together using the Ethernet interface as well as GPIB and USB links.

Current users of WTViewer will be able to download the new version upgrade from the company's website.

The Yokogawa WT3000 power analyser claims "best in class" precision and stability with a basic power accuracy of (0.02% of reading, DC and 0.1Hz-1MHz measurement bandwidths, and up to four input elements.

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