Advanced Power & Energy Meter – Acuvim II Series

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Acuvim II product images.
Acuvim II - front view.
Acuvim II - left quarter angle view.
Acuvim II - bottom view.
Acuvim II - right quarter angle view.
UL Listed
CE Mark
BTL Listed
ANSI 0.2 Class
Modbus RTU
DNP3
MV90
WiFi

Advanced Power &
Energy Meter

The Acuvim II Series power and energy meters are the simple, robust solution for power monitoring, kWh metering, power quality analysis, and more. This multifunction meter is engineered for easy integration into any project environment and a wide array of plug-in expansion modules facilitate communication on over 15 different industry-standard protocols.

  • Revenue grade: ANSI C12.20 class 0.2 & IEC 62053-22 class 0.2s
  • Data Logging available in 8MB, 16MB, 4GB, and 8GB with WEB2 module
  • Modbus-RTU & DNP 3.0 ready. Optional modules add support for multiple industrial protocols & interfaces such as Modbus, BACnet, IEC 61850, WiFi, and Ethernet
  • Available compatibility with multiple CT output options including 5A, mA, RCT (Rogowski), or 333mV
  • Designed with industry-leading cybersecurity and an anti-tampering seal
  • Configure as a panel mount meter with digital display or DIN rail mount transducer
  • 5 year warranty

Acuvim II Overview

What is AC Energy Metering?

An AC energy meter is a specialized device engineered to collect a variety of AC power or energy data for a single load or an entire system. Generally installed adjacent to an electrical panel or within switchgear, an AC energy meter may continuously gather data to provide detailed insight into consumption patterns, load profiles, and system performance. In addition, some AC energy meters also measure power quality parameters, allowing facilities professionals to stay ahead of harmful PQ issues, protect sensitive equipment, and reduce downtime.

Customize Your Meter Configuration

The Acuvim II is a premium power and energy measurement instrument capable of delivering superior results across a wide range of AC measurement applications. With a variety of customizable options including form factor, current sensor choices, & communication protocols, easily configure the meter to match any project objective.

Acuvim II front quarter angle view.
Select an Acuvim II Model
Available in four different configurations, each one engineered for a specific project environment.
Choose a Form Factor
Configure as a Panel Mount meter with a digital display or as a DIN Rail Transducer.
Choose a Current Input Option
Choose a current input option for the Acuvim II: 5A/1A, Rogowski Coil (RCT), 333mV, or 80/100/200mA.
Select a Power Supply
Two power supply options: P1 is for 100-415Vac (50/60Hz) and 100-300Vdc systems. P2 is compatible with a 20-60Vdc source.
Select an Optional Communication Module
The AXM line of expansion modules increases the range of available protocol options.
Choose Optional Accessories
Customize your meter with a range of helpful accessories.

Acuvim II Main Features

Acuvim II - Data Logging.

DATA LOGGING

Access robust data logging capabilities by pairing the Acuvim II energy & power meters with the AXM-WEB2 module. With 8GB of internal memory, capture an array of metering parameters for future download or analysis.

Key Specifications:

  • Generate historical logs for selected parameters
  • Equip the AXM-WEB2 module to expand the memory to 8GB with an up to 50ms logging interval
  • The real time clock accurately timestamps all logged events
Acuvim II - Power Monitoring.

POWER QUALITY MONITORING

The Acuvim IIW power meter can detect energy deviations using harmonic analysis, event logging, and waveform capture. Use the detailed PQ data to diagnose power quality issues before they cause system inefficiency.

Key Specifications:

  • Capture sags, swells, and other critical events with a timestamp and triggering information
  • Supports logging individual harmonics up to the 63rd
  • Save up to 50,000 power quality events
  • All events are stored in non-volatile memory
  • Gain insight into power quality by capturing waveforms when voltage sags or swells occur
Acuvim II - Waveform Capture.

WAVEFORM CAPTURE

The Acuvim IIW can record voltage & current waveforms. The instrument supports a settable triggering condition and data can be stored for later analysis.

Key Specifications:

  • Trigger a waveform from voltage sag or swell, over current, or switch status digital input
  • Record 100 groups of voltage & current waveform data at a sampling rate of 64 points per cycle
  • Data is saved in the COMTRADE format (when using AXM-WEB2)
Acuvim II - Industry Accuracy.

INDUSTRY-LEADING ACCURACY

The Acuvim II meter monitors over 400 essential measurement parameters with superior accuracy. Ideal for revenue submetering projects, such as tenant billing or cost allocation, the Acuvim II meter's revenue grade accuracy delivers precise, reliable data in critical applications.

Key Specifications:

  • ANSI C12.20 Class 0.2 & IEC 62053-22 Class 0.2s
  • 100ms refresh rate with true RMS measurements
  • Power and energy measurement accuracy is 0.2% while monitoring all four quadrants
Acuvim II - Multi Protocol.

MULTI-PROTOCOL SUPPORT

Connect a variety of communications modules directly to the Acuvim II meter to support numerous industrial, open protocols for seamless integration into nearly any existing building management system.

Key Specifications:

  • Built-in Modbus-RTU compatibility
  • Add BACnet-IP, Modbus-TCP/IP, PROFIBUS, EtherNet/IP, MQTT, and other popular industrial protocols. Learn More
  • Communicate via Serial over RS485, Ethernet, or WiFi for ultimate flexibility
Acuvim II - Guaranteed Data Security

GUARANTEED DATA SECURITY

Avoid insecure or unreliable port forwarding solutions by using a dedicated remote access URL to access critical data from any device with an internet connection. The built-in web server offers comprehensive meter access without complicated network configuration.

Key Specifications:

  • Industry-leading cyber security: Compliance with IEC 61850 2nd Edition, SSL encryption, TLS 1.2, and SNMP v3
  • Compliance with IEC 62443 standard for cyber security for industrial controlled devices
  • Strong security over WiFi with WPA 2 Enterprise compliance
  • HTTPS and sFTP to safeguard remote connections
  • Use a web browser on any device for anytime, anywhere access
  • View energy information, real-time meter readings, energy trends, alarms, and more
Acuvim II - Data Logging Icon.
Data Acquisition
Acuvim II - Data Logging.

DATA LOGGING

Access robust data logging capabilities by pairing the Acuvim II energy & power meters with the AXM-WEB2 module. With 8GB of internal memory, capture an array of metering parameters for future download or analysis.

Key Specifications:

  • Generate historical logs for selected parameters
  • Equip the AXM-WEB2 module to expand the memory to 8GB with an up to 50ms logging interval
  • The real time clock accurately timestamps all logged events
Acuvim II - Power Quality Monitoring Icon.
Power Quality Monitoring
Acuvim II - Power Monitoring.

POWER QUALITY MONITORING

The Acuvim IIW power meter can detect energy deviations using harmonic analysis, event logging, and waveform capture. Use the detailed PQ data to diagnose power quality issues before they cause system inefficiency.

Key Specifications:

  • Capture sags, swells, and other critical events with a timestamp and triggering information
  • Supports logging individual harmonics up to the 63rd
  • Save up to 50,000 power quality events
  • All events are stored in non-volatile memory
  • Gain insight into power quality by capturing waveforms when voltage sags or swells occur
Acuvim II - Waveform Capture Icon.
Waveform Capture
Acuvim II - Waveform Capture.

WAVEFORM CAPTURE

The Acuvim IIW can record voltage & current waveforms. The instrument supports a settable triggering condition and data can be stored for later analysis.

Key Specifications:

  • Trigger a waveform from voltage sag or swell, over current, or switch status digital input
  • Record 100 groups of voltage & current waveform data at a sampling rate of 64 points per cycle
  • Record 100 groups of voltage & current waveform data at a sampling rate of 64 points per cycle
  • Data is saved in the COMTRADE format (when using AXM-WEB2)
Acuvim II - Industry Accuracy Icon.
Industry-Leading Accuracy
Acuvim II - Industry Accuracy.

INDUSTRY-LEADING ACCURACY

The Acuvim II meter monitors over 400 essential measurement parameters with superior accuracy. Ideal for revenue submetering projects, such as tenant billing or cost allocation, the Acuvim II meter's revenue grade accuracy delivers precise, reliable data in critical applications.

Key Specifications:

  • ANSI C12.20 Class 0.2 & IEC 62053-22 Class 0.2s
  • 100ms refresh rate with true RMS measurements
  • Power and energy measurement accuracy is 0.2% while monitoring all four quadrants
Acuvim II - Multi Protocol Icon.
Multi-Protocol Support
Acuvim II - Multi Protocol.

MULTI-PROTOCOL SUPPORT

Connect a variety of communications modules directly to the Acuvim II meter to support numerous industrial, open protocols for seamless integration into nearly any existing building management system.

Key Specifications:

  • Built-in Modbus-RTU compatibility
  • Add BACnet-IP, Modbus-TCP/IP, PROFIBUS, EtherNet/IP, MQTT, and other popular industrial protocols. Learn More
  • Communicate via Serial over RS485, Ethernet, or WiFi for ultimate flexibility
Acuvim II - Guaranteed Data Security Icon.
Guaranteed Data Security

GUARANTEED DATA SECURITY

Avoid insecure or unreliable port forwarding solutions by using a dedicated remote access URL to access critical data from any device with an internet connection. The built-in web server offers comprehensive meter access without complicated network configuration.

Key Specifications:

  • Industry-leading cyber security: Compliance with IEC 61850 2nd Edition, SSL encryption, TLS 1.2, and SNMP v3
  • Compliance with IEC 62443 standard for cyber security for industrial controlled devices
  • Strong security over WiFi with WPA 2 Enterprise compliance
  • HTTPS and sFTP to safeguard remote connections
  • Use a web browser on any device for anytime, anywhere access
  • View energy information, real-time meter readings, energy trends, alarms, and more

Acuvim II Diagram

Acuvim II - Diagram Energy Metering.
Acuvim II - Diagram Industrial Automation.
Acuvim II - Diagram Power Monitoring.

Acuvim II Product Map

Acuvim II Product Map.
1

LCD Screen

Large, backlit LCD screen

6

Power Supply

Connection for control power input

2

Enclosure

Made of high-strength, UL 94V-0 plastic

7

Communication Terminal

Meter's communication output

3

Function Keys

Four keys are used to interface with the meter

8

Module Connection

Connection for communication module

4

Voltage Input

Terminal for connecting voltage wiring

9

UL Listed

Meets UL safety standards

5

Current Input

Terminal for connecting current wiring

1

LCD Screen

Large, backlit LCD screen

2

Enclosure

Made of high-strength, UL 94V-0 plastic

3

Function Keys

Four keys are used to interface with the meter

4

Voltage Input

Terminal for connecting voltage wiring

5

Current Input

Terminal for connecting current wiring

6

Power Supply

Connection for control power input

7

Communication Terminal

Meter's communication output

8

Module Connection

Connection for communication module

9

UL Listed

Meets UL safety standards

Acuvim II Models

Acuvim II
Acuvim IIR
Acuvim IIE
Acuvim IIW
Application All-Purpose Use Data Logging Time-of-Use/Billing Power Quality
Metering 400 Parameters 400 Parameters 400 Parameters 400 Parameters
Data Logging 8MB 8MB 16MB
Time-of-use
Power Quality
Current Sensing Input Choose from: 5A/1A, 80mA/100mA/200mA, 333mV, or RCT (Rogowski)
Power Supply Choose from: P1 (for 100-415Vac, 50/60Hz or 100-300Vdc) or P2 (for 20-60Vdc)
Panel Mount Option
DIN rail Transducer Option
Acuvim II
Application All-Purpose Use
Metering 400 Parameters
Current Sensing Input Choose from: 5A/1A, 80mA/100mA/200mA, 333mV, or RCT (Rogowski)
Power Supply Choose from: P1 (for 100-415Vac, 50/60Hz or 100-300Vdc) or P2 (for 20-60Vdc)
Panel Mount Option
DIN rail Transducer Option
Acuvim IIR
Application Data Logging
Metering 400 Parameters
Data Logging 8MB
Current Sensing Input Choose from: 5A/1A, 80mA/100mA/200mA, 333mV, or RCT (Rogowski)
Power Supply Choose from: P1 (for 100-415Vac, 50/60Hz or 100-300Vdc) or P2 (for 20-60Vdc)
Panel Mount Option
DIN rail Transducer Option
Acuvim IIE
Application Time-of-Use/Billing
Metering 400 Parameters
Data Logging 8MB
Time-of-use
Current Sensing Input Choose from: 5A/1A, 80mA/100mA/200mA, 333mV, or RCT (Rogowski)
Power Supply Choose from: P1 (for 100-415Vac, 50/60Hz or 100-300Vdc) or P2 (for 20-60Vdc)
Panel Mount Option
DIN rail Transducer Option
Acuvim IIW
Application Power Quality
Metering 400 Parameters
Data Logging 16MB
Power Quality
Current Sensing Input Choose from: 5A/1A, 80mA/100mA/200mA, 333mV, or RCT (Rogowski)
Power Supply Choose from: P1 (for 100-415Vac, 50/60Hz or 100-300Vdc) or P2 (for 20-60Vdc)
Panel Mount Option
DIN rail Transducer Option

Acuvim II Communication Modules

Acuvim II Standard Model is MODBUS-RTU and DNP 3.0 ready. Our AXM line of pluggable expansion modules offer you the ability to customize your protocol choice.

METER
ONLY
AXM
WEB2 FOLC
AXM
WEB2
AXM
WEB PUSH
AXM
BIP
AXM
BMS
AXM
PROFI
AXM
RS485
AXM
MESH
Data Logging Modules
Local Memory 8MB 8GB 8GB 4GB
Ethernet Modules
Modbus TCP/IP
BACnet-IP
IEC 61850
DNP 3.0 Over IP
EtherNet/IP
IPv6
MQTT
Networking Modules
RSTP
SNMP
Wi-Fi
Data Post Modules
HTTP/HTTPs
FTP/sFTP
JSON
Web Server Modules
Remote Access URL
Trend Logs / Load Profile
OTA Updates
COMtrade format for waveform capture
Serial Modules
Modbus-RTU
Additional RS485 for Modbus RTU
Profibus-DP (V0)
BACnet MS/TP
Wireless Mesh Modules
Frequency 900 MHz
868 MHz
I/O Support Modules
Acuvim II I/O Module Product Image.
AXM-IO1
Acuvim II I/O Module Product Image.
AXM-IO2
Acuvim II I/O Module Product Image.
AXM-IO3
Digital Input 6 4 4
Digital Output 2
Analogue Input 2
Analogue Output 2
Relay Output 2 2
Power Supply 24Vdc
METER ONLY
Local Memory 8MB
Modbus-RTU
AXM WEB2 FOLC
Local Memory 8GB
Modbus TCP/IP
BACnet-IP
IEC 61850
DNP 3.0 Over IP
EtherNet/IP
IPv6
MQTT
RSTP
SNMP
Wi-Fi
HTTP/HTTPs
FTP/sFTP
JSON
Remote Access URL
Trend Logs / Load Profile
OTA Updates
COMtrade format for waveform capture
AXM WEB2
Local Memory 8GB
Modbus TCP/IP
BACnet-IP
IEC 61850
DNP 3.0 Over IP
EtherNet/IP
IPv6
MQTT
RSTP
SNMP
Wi-Fi
HTTP/HTTPs
FTP/sFTP
JSON
Remote Access URL
Trend Logs / Load Profile
OTA Updates
COMtrade format for waveform capture
AXM WEB PUSH
Local Memory 4GB
Modbus TCP/IP
DNP 3.0 Over IP
SNMP
HTTP/HTTPs
FTP/sFTP
Remote Access URL
OTA Updates
AXM BIP
BACnet-IP
AXM BMS
BACnet MS/TP
AXM PROFI
Profibus-DP (V0)
AXM RS485
Additional RS485 for Modbus RTU
AXM MESH
Frequency 900 MHz
868 MHz
I/O Support Modules
AXM-IO1
Digital Input 6
Relay Output 2
Power Supply 24Vdc
AXM-IO2
Digital Input 4
Digital Output 2
Analogue Output 2
AXM-IO3
Digital Input 4
Analogue Input 2
Relay Output 2

Acuvim II Accessories

Acuvim II protect display cover.
Protective Display Cover

The Protective Display Cover is designed for Acuvim II Series energy meters and other 96mm by 96mm display panel meters. Crucial in harsh environments, it increases the IP environmental rating of a meter's display to IP66 or NEMA 4X.

USB RS485 coverter close-up.
USB RS485 Converter

This plug-and-play USB to Serial RS485 Converter is designed to provide a convenient, reliable USB connection to the Acuvim II Series power meters and other serial devices.

Acuvim II DIN rail adapter.
DIN Rail Adapter

The AXM-DIN Rail Adapter is the easy way to mount the Acuvim II Series energy meter on either horizontal or vertical DIN rail. The adapter quickly secures to the meter and is compatible with all AXM communication modules as well as I/O options.

Acuvim II AcuvPanel 9100X.
AcuPanel

The AcuPanel is a convenient pre-configured, pre-wired solution that is ideal for situations where installation inside an electrical distribution panel is not an option or in harsh environments where additional protection is needed. The factory pre-wiring will greatly save installation time and reduce frustrating wiring errors.

AC Current Transformers.
AC Current Transformers

High Specification Line of AC Current Transformers. Custom built in-house, our high accuracy industrial split-core and flexible current transformers are among the industry's highest specification CT and offer exceptional value.

Acuvim II FAQ

How many modules can be attached to the meter simultaneously?

A maximum of three modules may be attached to the meter at the same time.

  • If a communication module is used (e.g. AXM-WEB-PUSH), it must be installed on the back of the meter FIRST before other modules are attached.
  • There can only be one communication module connected to the meter.
  • No more than two, identical I/O modules may be attached to the meter. Additionally, the two I/O modules must have a different component number. For example, two AXM-IO2 will be designated AXM-IO2-1 and AXM-IO2-2.
Does the meter support single phase applications?

The meter supports single phase systems. Single phase 2-wire and single phase 3-wire are supported. The wiring configuration should be set to 1LN, 1CT for single phase 2-wire and 1LL, 2CT for single phase 3-wire systems.

Can I use the voltage input for the control power of the meter?

Yes, you can use a jumper to power the meter as long as the voltage input is within the meter's control power limit of 100-415Vac for P1 meters and 20-60Vdc for P2 meters. V1 on the voltage input can be jumped to "L" on the meter's power supply terminal and V2 of the voltage input can be jumped to "N." NOTE: If there is a neutral in the system you can jump the neutral from the voltage input to the ‘N’ terminal of the meters power supply, and use one of the voltage inputs to connect to 'L'.

What is the refresh rate for the Acuvim II meter's screen and registers?

The LCD screen refresh rate is 1 second while the Modbus data updates in the registers at a 100ms refresh rate.

Does the Acuvim II support SunSpec registers?

Yes, the Acuvim II meter supports SunSpec. The SunSpec registers can be found in the download section of the website as well as in the meter's user manual.

Can the Acuvim II monitor 400Hz systems?

Yes, the Acuvim II can be used to monitor 400Hz systems. In addition, the meter can automatically detect and adapt to the frequency of the electrical system.

What is the meter's sampling rate per cycle?

The meter takes 512 samples per cycle.

Where can I download Acuview Software?

Acuview software can be downloaded by using the link below and scrolling down to the 'Acuvim II' Section. www.accuenergy.com/support/product-support-documents/

Can the meter be powered using the Voltage references (V1,V2,V3,VN)?

Yes, the meter may be powered up using only one voltage wire (V1) and the neutral wire (Vn). This may be accomplished by jumping the voltage phase wires.

What is the maximum length a CT lead can be extended?

We do not recommend extending over 50m. If you choose to extend the CT leads according to this guideline, we suggest that using a twisted pair of cables. Adding shielding is also recommended best practice.

View all Acuvim II FAQs