ACM20-5-AC1-R-F-C DATEL, ACM20-5-AC1-R-F-C Datasheet - Page 2

• Manufacturer Part Number: ACM20-5-AC1-R-F-C
• Description: DPM, AC POWER, 32A, FREQUENCY
• Manufacturer: DATEL

Specifications of ACM20-5-AC1-R-F-C

• No. Of Digits / Alpha: 4
• Meter Function: AC Volts, Amps, Watts, And Hertz
• Digit Height: 9.14mm
• Supply Voltage Range: 85VAC To 264VAC
• Operating Temperature Range: 0°C To +60°C
• Input Current Range: 0A To
• Meter Range: 85V To 264V / 0A To 32A / 0W To 9999W / 47Hz To 63Hz
• Power Consumption: 250mW
• Meter Output: Frequency
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Performance/Functional Specifi cations
Typical at TA=+ 25ºC, 120Vac @ 60Hz, unless otherwise noted
➀ Specifi ed full-scale currents are those passing through the power meter’s built-in current
➁ The overcurrent rating of 1.5 x the rated full-scale current is a continuous rating and applies
➂ ACM20 Power Meters are calibrated with near full-scale 60Hz sine-wave inputs.
➃ All specifi ed maximum supply currents are steady state; larger surge currents can occur at
➄ Applies to 10A and 32A models only.
Measurement Limits
AC Voltage
AC Current, 10A models ➀
AC Current, 32A models ➀
AC Current, 100A models ➀
Active Power: 10A models
Active Power:
Active Power:
Frequency
Power Factor
Overcurrent Rating ➁
Performance
Sampling Rate
Voltage Accuracy ➂
Current Accuracy ➂
Power Accuracy ➂
Frequency Accuracy ➂
Power Factor Accuracy
Measurement Bandwidth
Temperature Drift (0 to 60ºC)
Zero-Current Reading (within 2 sec.)
Zero-Power Reading (within 2 sec.)
Supply Voltage (TB1) (Measurement Category II)
All Models – 47-63 Hz
Supply Current ➃
All Models
Power Supply Terminal Block
Wire Size
Insulation Strip Length
Screw Tightening Torque
Rated Voltage
Display
Display Type and Size
Overrange Indication
Decimal Point Selection
Physical/Environmental
Operating Temperature
Storage Temperature
Humidity (non-condensing)
Dimensions
Weight: 32A models
Weight:
Hex Nut Tightening Torque
transformer’s primary load-circuit.
to the current passing through the built in current transformer. Accuracy is guaranteed up to
the rated current.
initial application of line power.
100A models
32A models
100A models
Min.
85.0
0.00
0.00
47.0
–40
0.0
.00
4 Digit LED, 9.14mm (0.36in) high
0
0
0
0
0
140Hz (Voltage), 14kHz (Current)
85
35
See mechanical specifi cations
1.5 x rated full-scale current
16-22AWG, solid or stranded
Flashing ‘9999’ Watts ➄
0.14 N-m (20 ozf-in)
2-3 samples / sec
Automatically Set
6.4mm (0.250 in)
0.4Nm (3.6 lb-in)
1.00
Typ.
0.00
0.5 Counts/ºC
120
1.3oz (37.9g)
1.5oz (43.5g)
–
–
–
-
-
-
-
-
-
-
-
0
50
300Vac
264.0
9.999
32.00
100.0
999.9
Max.
9999
±1%
±1%
±2%
±0.1
±3%
26.4
63.0
+60
+75
264
110
85
-
www.murata-ps.com/dpm
Amperes
Amperes
Amperes
Units
Watts
Watts
Amps
Watts
Volts
Vac
kW
mA
Hz
Hz
°C
°C
%
-
!
TECHNICAL NOTES
1. Measurement Type: ACM20 series multifunction AC power meters
2. Basic Operation: Upon application of ac power to TB1, the unit will
ORDERING INFORMATION
ACM20-2-AC1-R-C
ACM20-5-AC1-R-C
ACM20-4-AC1-R-C
ACM20-2-AC1-R-F-C
ACM20-5-AC1-R-F-C
ACM20-4-AC1-R-F-C
IMPORTANT! To ensure safe and reliable operation, ACM20 power
meters must be installed and serviced by qualifi ed technical person-
nel. Contact Murata Power Solutions if there is any doubt regarding
their installation or operation.
employ a precision energy metering integrated circuit and a low-
power microcontroller to measure and display the rms voltage and
current, active (real) power, power factor (or line frequency on ‘–F’
suffi x models) of ac mains supplies from 47-63Hz. Please note,
ACM20 power meters use the voltage present at their TB1 terminal
block and the secondary current of their built-in current transformer
L1 to calculate and then display VOLTS, AMPS, WATTS, power factor
(PF), or line frequency on ‘-F’ HERTZ models.
While the ACM20 displays the rms value of line voltage and line
current, the VOLTS reading has an upper limit of 140Hz (-3db point),
which means rectangular-shaped voltage waveforms, and waveforms
with sharp transitions, will read lower than their true-rms value. For
example, a square wave line voltage will read approximately 1-2%
lower, a triangle wave will read 3% lower, and a modifi ed sine wave
will read 18% lower. The oscillograms on page seven illustrate typical
ACM20 VOLTS readings when powered from four ac waveforms.
The 140Hz bandwidth limit does not apply to the WATTS reading nor
to the AMPS reading. The circuitry used for these two measurements
has an upper bandwidth of 14kHz. ACM20 power meters are mains
operated devices designed to measure ac currents and voltages,
within the specifi ed limits previously noted. DC currents and voltages
will not be measured accurately.
fi rst perform a self-test routine and then continuously display ac volts
with the VOLTS LED annunciator illuminated. The display will remain
in the VOLTS mode as long as the front panel ‘SEL’ button is not
touched.
After the unit powers up to normal operation in the VOLTS reading
mode, momentarily (approximately one second) touching the ‘SEL’
button on the unit’s front panel three times in succession will cycle
the display to AMPS, WATTS, and end at PF (or HERTZ for ‘–F’ mod-
els). Momentarily touching ‘SEL’ a fourth time will return the display
back to the VOLTS reading mode.
Holding the ‘SEL’ button down for 3 seconds will place the unit in a
continuous auto-cycling mode, and the display will repetitively scroll
through all four measurements, with each measurement remaining
displayed for 3 seconds.
03 Mar 2011 MPM_ACM20 Series.A09 Page 2 of 6
10A, 85-264Vac Supply (Power Factor Reading)
32A, 85-264Vac Supply (Power Factor Reading)
100A, 85-264Vac Supply (Power Factor Reading)
10A, 85-264Vac Supply (Frequency Reading)
32A, 85-264Vac Supply (Frequency Reading)
100A, 85-264Vac Supply (Frequency Reading)
Four-Function AC Power Meters
ACM20 Series
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