JEMStar II Revenue Meter Quantifies Power Quality

Monday, February 19, 2018

CONTACT: Steve Bleier (585) 238-4078,

AMETEK JEMStar II Revenue Meter Quantifies Power Quality, Identifies Anomalies on Electric Grids

ROCHESTER, NY, U.S.A. – The Electric Power Research Institute (EPRI) has completed a performance assessment of the JEMStar II revenue meter from AMETEK Power Instruments, a recognized leader in power monitoring and fault detection devices.

The JEMStar II is designed to accurately monitor power quality. The meter measures steady state power quality and identifies power quality anomalies on electric grids. It detects voltage sags and swells, harmonics, transients, flicker and power interruptions.

Among the JEMStar II’s features is 1 gigabyte of memory to store triggered waveforms, high-speed RMS (root mean square) captures and long-term trending of power quality measurements. Power quality data is stored inside the device using the PQDIF format and can be sent to a server. The easy-to-use software offers a graphical display to help users perform root-cause assessments of power quality issues.

AMETEK Power Instruments is a unit of AMETEK, Inc., a leading manufacturer of electronic instruments and electromechanical devices with annualized sales of $4.3 billion.

For more information, contact AMETEK Power Instruments, 255 North Union Street, Rochester New York 14605. Telephone: 1-585-263-7700. Fax: 1-585-454-7805. E-mail: Web site: