www.murata-ps.com
ACM20 Series
Four-Function AC Power Meters
New!
ttage
ow-Wa
L
Models
le
Availab
PRODUCT OVERVIEW
Actual size
C
®
US E156931
FEATURES
Displays AC Volts, Amps, Watts, and Power Factor or Hertz
Two display modes: continuous auto cycling or fixed
Universal 85-264Vac (47-63Hz) operating range
(Measurement Category II)
Built-in current transformers simplify installation; choice of
10A, 32A, 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)
Approvals to UL/CSA/IEC/EN 61010-1
SIMPLIFIED SCHEMATIC DIAGRAM
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.
VOLTS
LOAD CURRENT
+5V
L1
AMPS
WATTS
PF
A/D
CONVERTER
+5V
B
85-264 Vac
47-63 Hz
+5V
AC/DC
CONVERTER
MICRO-
CONTROLLER
A
For full details go to
www.murata-ps.com/rohs
SEL
www.murata-ps.com/dpm
email: sales@murata-ps.com
03 Mar 2011 MPM_ACM20 Series.A09
Page 1 of 6
MURATA [ MURATA MANUFACTURING CO., LTD. ]
