Murata Power Solutions’ ACM20 series AC power meters display the most critical measure-

ments in mains-powered equipment: voltage, amperage, active power (watts), and power

factor. 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 three input ranges: 0-10A (with

0.001A resolution, 999.9 watts max.); 0-32A (with 0.01A resolution, 9999 watts max.); and

0-100A (0.1A resolution, 26.4kW 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 real power and true-rms current values of triangle waves, square waves, and

other irregularly shaped waveforms, with a typical 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 meters). 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 instrumenta-

tion, alternative energy applications, and any other products that require precise monitoring

of AC power.

PRODUCT OVERVIEW

FEATURES

(Measurement Category II)

10A, 32A, or 100A ranges

SIMPLIFIED SCHEMATIC DIAGRAM

A

B

85-264 Vac

47-63 Hz

AC/DC

CONVERTER

MICRO-

CONTROLLER

SEL

+5V

+5V

+5V

A/D

CONVERTER

LOAD CURRENT

L1

VOLTS

AMPS

WATTS

PF

Actual size

C

®

US E156931

New!

Low-W

attage

Models

Available

ACM20 Series

Four-Function AC Power Meters

For full details go to

www.murata-ps.com/rohs

www.murata-ps.com/dpm

www.murata-ps.com

email: sales@murata-ps.com

03 Mar 2011

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