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Chroma’s New 3 and 4 Channel Power Meters – High Speed, High Accuracy and Low Cost

Chroma has introduced 66203/66204 Power Meters that are designed for multiple phase power measurement applications. The wiring mode function allows the user to take accurate power measurements for various wiring modes as well as providing accurate standard power measurements common for most electrical devices. A unique feature is its state-of-the-art DSP digitizing technology instead of less accurate and slower traditional analog circuits. The internal 16 bits analog/digital converters with sampling rates of up to 250kHz provide both high speed and high accuracy measurements not found anywhere else for this class of power meters.

Chroma’s entire 66200 family of power meters comply with power measurement requirements in accordance to many international standards such as Energy Star® / EN 50564 / IEC 62301 / ErP.

Chroma’s new model 66203 and 66204 Power Meters allow users to take accurate power measurements for various wiring modes including three phase WYE and DELTA and split phase. These power meters feature state-of-the-art DSP digitizing technology which replaces less accurate and slower traditional analog circuits. The internal 16 bit analog/digital converters with sampling rates of up to 250 kHz provide both high speed and high accuracy measurements.

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How to Perform a Radiated Emissions Measurement

Radiated emissions testing is the measurement of the electromagnetic field of the emissions that are unintentionally being generated by the equipment under test.

The 66203 and 66204 are packaged in a 3U high, half rack enclosure suitable for bench top or system integration. The 4 channel 66204 is ideal for functional and efficiency measurements of three 3 phase grid inverters as the fourth channel maybe be used to measure the DC voltage, current, and power on the input side of the inverter.

The 66203 and 66204 power meters include a 2-shunt design to provide high accurate readings for both low and high current measurements and are capable of supporting external shunts and current transformers for higher current applications. The power meters also support Inrush Current, Total Harmonic Distortion of V/I, and Energy measurements. These practical functions make Chroma’s new power meters ideal for meeting the demanding tasks of R&D, production and quality control departments.

The instruments include a four part display with 7-segment LED front panel readouts. Users can easily select desired parameters and readouts with a touch of a button. The 66203 and 66204 meters also include remote control using USB or GPIB interfaces via rear panel connections. Chroma provides optional software for increased operational efficiency and reporting.

The advanced graphical software package controls and captures measurement data via standard computer interfaces such as GPIB, and USB. Graphical panels are especially useful when performing industry standards testing such as pre-compliance testing of harmonic current limits to IEC61000-3-2 or Energy Star ® requirements.

For detailed specifications, visit www.chromausa.com/powermeters.php

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