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Request available label and connector photos. Have your maintenance team compare the offered 3720-ACM with the installed equipment and applicable Power Measurement documentation.
Technical specifications for 3720-ACM
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Manufacturer:POWER MEASUREMENT
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Product Category:General Automation
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Spare Part Number:3720-ACM
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Weight:2.8 kg
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Tariff Code:8537101190
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Instrument family:3720 ACM advanced digital power instrumentation
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Measurements:Voltage, current, real/reactive/apparent power, frequency and power factor
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Energy and demand:Energy registers and demand measurements
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Power-quality functions:Harmonic analysis and waveform capture/recording
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Setpoint functions:High-speed and standard setpoints
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Field setup:Front-panel programming and diagnostic display
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Basic supply design:100-240 V AC or 110-300 V DC; verify rear label
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Optional supply design:P24/48: 20-60 V DC; only when fitted
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Communication options:Optional cards include serial and Ethernet interfaces; inspect installed card
Information
Overview
Downloads
Applications / Compatibility
Product Precautions
- Power Measurement 3720-ACM. In a 3720-ACM installation, CT/PT ratios and wiring mode determine the meaning of meter readings; preserve those settings before an instrument exchange.
Instrument family: 3720 ACM advanced digital power instrumentation
Measurements: Voltage, current, real/reactive/apparent power, frequency and power factor
Energy and demand: Energy registers and demand measurements
Power-quality functions: Harmonic analysis and waveform capture/recording
Measurements: Voltage, current, real/reactive/apparent power, frequency and power factor
Energy and demand: Energy registers and demand measurements
Power-quality functions: Harmonic analysis and waveform capture/recording
Its power-quality functions include harmonic analysis and waveform capture or recording. Setpoint actions and log functions are configured for the application rather than inferred from the bare 3720-ACM reference.
The rear-panel label identifies the fitted supply option. The basic and P24/48 supplies have different ranges. Communications likewise depend on the fitted ISOCOM, MPCC or MPE hardware.
Commissioning requires verification of safe isolation, supply option, measurement wiring, CT/PT ratios, communications card and firmware before accepting readings and alarms.
The rear-panel label identifies the fitted supply option. The basic and P24/48 supplies have different ranges. Communications likewise depend on the fitted ISOCOM, MPCC or MPE hardware.
Commissioning requires verification of safe isolation, supply option, measurement wiring, CT/PT ratios, communications card and firmware before accepting readings and alarms.
Installed-system reference: 3720 ACM power-monitoring platform. Confirm the rear-label supply and fitted communication card.
Technical downloads for Power Measurement 3720-ACM: an Apter Power technical reference and an Apter Power installation and commissioning guide.
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Power Measurement 3720-ACM technical reference
Prepared by Apter Power - PDF, 5 pages. Model-specific technical data, options and verification boundaries. -
Power Measurement 3720-ACM installation guide
Prepared by Apter Power - PDF, 5 pages. Installed-system review, configuration checks, commissioning and handover.
The technical reference and installation guide are prepared by Apter Power from the identified Power Measurement document. Verify fitted options and use the complete site procedure.
Measurement-system context: 3720-ACM operates in an industrial power-monitoring installation. The fitted inputs, CT/PT ratios and communication hardware define the measured circuit.
Application scope: Use energy, demand and power-quality functions only where the installed options and firmware support them.
Application scope: Use energy, demand and power-quality functions only where the installed options and firmware support them.
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Circuit metering
The 3720 ACM measures voltage, current, power, frequency and power factor in the configured circuit. -
Energy and demand
Energy registers and demand measurements support consumption and peak-load review. -
Power quality
Harmonic analysis and waveform capture or recording depend on the installed setup. -
Supervisory integration
Setpoints and communications can feed a monitoring system when the required card and settings are fitted.
Installation and commissioning checks for Power Measurement 3720-ACM.
Electrical safety
Isolate measured circuits and control supply before wiring; treat CT and PT circuits under the site procedure.
Option identification
Record the rear label and installed communications card before applying option-specific settings.
Verification
Compare live readings and setpoint responses with known circuit conditions before release.
Scaling
Record CT/PT ratios and voltage mode before changing the meter.
Communications
Verify the fitted card and serial or Ethernet settings rather than assuming an option is present.
Diagnostics
Check displayed measurements, alarm states and logs after wiring and setup.
Alternative Names
3720ACM
POWER MEASUREMENT 3720-ACM
Technical notes
Installation relationship: Set the CT/PT ratios and wiring mode to the measured circuit before interpreting power and energy values.
Option boundary: Supply input and communication ports depend on rear-panel and card markings; do not assign optional features to the bare model.
Technical reference: Power Measurement 3720 ACM Installation and Operation Manual, MRP 70000-0004.
FAQ View All FAQ
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Which electrical values can 3720-ACM monitor?The 3720 ACM family measures voltage, current, power, frequency, power factor, energy and demand; applicable wiring and setup determine the displayed values.
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Does 3720-ACM include waveform and harmonic functions?The 3720 ACM platform supports harmonic analysis plus waveform capture and recording. Verify firmware and installed configuration for the intended function.
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How is the supply option identified on 3720-ACM?Read the rear-panel label. The basic supply and P24/48 optional supply have different input ranges.
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Does the 3720 ACM family give 3720-ACM an Ethernet port by default?No. Ethernet belongs to the optional MPE communications card; inspect the fitted communication hardware.
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What is the role of setpoints on 3720-ACM?The 3720 ACM uses high-speed and standard setpoints to monitor configured measurement conditions and trigger the selected response.
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How are measurement scaling values set on 3720-ACM?Use the front-panel programming mode to set voltage and current scales and the applicable wiring mode for the installed transformers.
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What must be checked before wiring 3720-ACM to a power circuit?Confirm the rear-label supply option, system voltage, CT/PT ratios, protective isolation and the terminal assignment in the installation manual.
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Which communication protocol can 3720-ACM use?Protocol support depends on the installed communication card and firmware; the optional ISOCOM2 arrangement supports PML and Modbus.
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