Circuit Monitors provide disturbance direction detection.

Press Release Summary:

PowerLogic® Series 3000/4000 Circuit Monitors provide historical trends and summaries, as well as energy, power quality, and alarm summaries. Units characterize disturbances as upstream or downstream with confidence indication that can be shown in active alarm window, on-board event log, e-mail, or error-checking/correction html page. Alarm summary keeps track of number of occurrences, average magnitude, and average duration for 15 categories.

Original Press Release:

New Circuit Monitors from Schneider Electric Lead Power Management Industry

PALATINE, Ill. - January 15, 2004 - Newly reengineered PowerLogic® Series 3000 and Series 4000 Circuit Monitors from Schneider Electric provide historical analysis trends and summaries, and energy, power quality and alarm summaries - capabilities unmatched in the industry.

"This tool has been submitted for a patent for the unique manner in which it uses comprehensive algorithms to analyze wave-shape and disturbance alarm data, telling the user whether the disturbance occurred upstream or downstream from the meter," said Gregg Morasca, director of sales and marketing for Schneider Electric's Power Management Operations.

Disturbance direction detection adds immediate troubleshooting capability to the CM3350/4000 meters by characterizing a disturbance as upstream or downstream with a confidence indication that can be shown in an active alarm window, on-board event log, e-mail or error-checking/correction html page. PowerLogic systems also make extensive energy and power quality measurements easier to use by condensing historical trends into summarized information, Morasca said.

Drawing on the IEEE 1159 and EN50160 standards of electromagnetic phenomena, simplified reporting is available directly from Ethernet Communications Card meter HTML pages in four support levels, with a fifth level available to PowerLogic System Manager Software (SMS) users.

The power quality summary evaluates over voltage, voltage sags, under voltage, voltage swells, voltage imbalance, interruptions, waveform distortion, flicker, frequency variations and transient over-voltages, producing an index for each category.

The alarm summary keeps track of the number of occurrences, average magnitude and average duration for 15 categories. In addition to the 10 power quality categories, it includes the following categories: over- current, over voltage THD, under power factor, over KVA demand and over KW demand. The energy summary provides summaries and trends for real and apparent energy, and four input metering channels on hourly, daily, weekly and monthly time scales.

These new technologies can be downloaded to installed CM3000 and CM4000 PowerLogic meters from

The Power Management Organization of Schneider Electric provides a full range of power monitoring hardware and software, lighting control hardware and software, and a variety of engineering services. For more information about the PowerLogic Series 3000 and Series 4000 circuit monitors or the complete line of Square D® power management equipment, contact Square D/Schneider Electric at 1-800-392-8781, or

Headquartered in Palatine, Ill., the North American Operating Division of Schneider Electric had sales of $2.7 billion in 2002. The North American Operating Division is one of four geographic divisions of Schneider Electric, headquartered in Paris, France, and markets the Square D, Telemecanique and Merlin Gerin brand products to customers in the United States, Canada and Mexico. In the United States, Schneider Electric is best known by its flagship Square D brand, with Telemecanique becoming increasingly known in the industrial control and automation markets and supported by many Square D distributors. For 100 years, Square D has been a market-leading brand of electrical distribution and industrial control products, systems and services. Schneider Electric is a global electrical industry leader with 2002 sales of approximately $9.5 billion. Visit Schneider Electric at,, or

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