Posted to News on 16th May 2007, 19:00
New 2A current input module for power analyser
A new 2A current input module is being introduced to further enhance the functionality of the Yokogawa WT3000 precision power analyser. The module is particularly suitable for testing power electronics systems in areas such as motors and drives, lighting, domestic appliances and mobile telephones.
With a crest factor of 3, the module can measure voltage across eight ranges from 15V to 1kV and current (using direct input) across nine ranges from 5mA to 2A. Furthermore, by using an external sensor input, the voltage ranges are from 50mV to 10V.
Input impedance for voltage measurement is approximately 10 megohms, and input capacitance is approximately 5pF. For current measurements, the input impedance is approximately 500 milliohms plus 0.07uH for direct input, and approximately 1 megohm with an input capacitance of 40pF for external sensor input.
Voltage and current ratings
Instantaneous maximum allowable input voltage for one second or less is 2500V peak or 1500V RMS, whichever is less. Corresponding current vales are 9A peak or 3A RMS for direct input, and the peak value less than or equal to 10 times the measurement range for external sensor input.
Continuous maximum allowable input voltage is 1600V peak or an RMS value of 1100V RMS, whichever is less. Maximum current value is 6A peak or 2.2A RMS, whichever is less (direct input), or less than or equal to five times the measurement range (external sensor input).
The Yokogawa WT3000 precision power analyser provides 'best in class' precision and stability. With a basic power accuracy of +/-0.02 per cent of reading, a measurement bandwidth of DC and 0.1Hz to 1MHz, and up to four input elements, the WT3000 provides high-accuracy measurement for testing all types of power electronics products.
About Yokogawa Test & Measurement
Yokogawa Test & Measurement Division, which trades in Europe under the name of Yokogawa Measurement Technologies, is a major player in the worldwide market for test and measurement instrumentation, with products that include portable test instruments, recorders and data-acquisition systems, semiconductor-related test systems, oscilloscopes, power meters, and wireless and optical communications test equipment.
Yokogawa Measurement Technologies is the new identity that has been created for the electronic test and measurement activities of Yokogawa within Europe.
Yokogawa has recently restructured its measurement business following the acquisition of Ando Electric Co Ltd, which is the first stage in Yokogawa's plans to become one of the top three suppliers of test and measurement instrumentation in the world by 2008.
