A front panel selector-switch provides two modes of operation: a fixed reading of any of the four parameters, or a continuous cycling through all four measurements. An optional model displays line frequency with 0.1Hz resolution. All ACM20 multi-function power meters include built-in current transformers—no other user-supplied components are required.

ACM20 series AC power meters are available in a choice of two input ranges: 0-30A (with 0.01A resolution, 7200 watts max.); 0-100A (0.1A resolution, 9999 watts max.). An 85-264Vac (47-63Hz) operating supply range makes these power meters perfect for worldwide power monitoring applications. And, unlike conventional, average-responding products, ACM20 power meters can accurately display the true-rms voltage and current values of triangle waves, square waves and other irregularly shaped waveforms, with an accuracy of ±1% of full scale.

Their large (0.36"/9.2mm), bright red LED display makes ACM20 AC power meters easily readable from as far as 15 feet (5 metres). All units are packaged in a one-piece, vibration resistant, polycarbonate housing that can be installed in vertical ‘0U’ and ‘1U’ rack spaces. Their miniature size is perfect for UPS power sources, power strips, laboratory instrumentation, alternative energy applications and any other products that require precise monitoring of AC power.

FEATURES

• Displays AC Volts, Amps, Watts and Power Factor
• User-selectable display modes: continuous auto cycling, or fixed reading
• Universal 85-264Vac (47-63Hz) operating range
• Built-in current transformers simplify installation; choice of 30A or 100A ranges
• Ideal for power distribution units (PDUs) and power strips
• True-rms readings of complex voltage and current waveforms
• Low-power consumption: less than ¼watt from 120Vac
• One-piece polycarbonate housing fits ‘0U’ & ‘1U’ racks
• Surface mount design occupies minimal panel space
• Bright red LED-display with four annunciators
• Optional Frequency reading models (0.1Hz resolution)