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UL Listed
CE Mark
Measurement Canada
ANSI 0.1 Class
Modbus RTU
DNP3
MV90
WiFi

ADVANCED POWER QUALITY METER

Acuvim 3 Overview

What is a Power Quality Meter?

A power quality meter is an instrument that monitors electrical systems by measuring parameters like voltage, current, frequency, and harmonics. It can identify abnormal electrical deviations from normal conditions to diagnose power system issues that could affect equipment performance, system reliability, and energy efficiency.

The Acuvim 3 Series meter comes equipped with an optional touchscreen display for intuitive advanced power quality analysis to monitor power system for PQ events from interruptions, unbalance, flicker, and transient. It can capture waveform and record these events through a data logger for alarms and analysis.

What is IEC 61000-4-30 Class A?

The Acuvim 3 Series meter is IEC 61000-4-30 Class A compliant, a global standard established by the International Electrotechnical Commission (IEC) to specify the requirements for power quality measurement methods and is certified by NMi. Acuvim 3 exceeds the standard with IEC 61557-12 Class 0.1 accuracy for voltage and current RMS measurements and 40 to 70 Hz at 1mHz accuracy IEC 61557-12 Class 0.02. Harmonic measurement up to 127th.

NMi Certification

Acuvim 3 overview

Acuvim 3 Main Features

Acuvim 3 - Power Quality Analysis

POWER QUALITY ANALYSIS

Acuvim 3 is specialized to monitor and analyze the characteristics of electrical power signals for quality. IEC 61000-40-30 Class A compliant, it analyzes for abnormal harmonic, frequency, current, voltage and transient fluctuations. Waveform capture are sampled up to 512 samples/cycle and saved as a COMTRADE file or can be posted to a remote server via HTTP/FTP.

Key Specifications:

  • IEC 61000-4-30 Class A compliant metering and third party certified by NMi for frequency, phase angle, voltage, and current
  • Capture waveform events in COMTRADE file formats and posted to remote server via HTTP/FTP
  • Sample up to 60 cycles before and up to 300 cycles after PQ events
  • Fast log waveform capture for half-cycle voltage and current RMS. Stored in a CSV file for post transfer to remote server
  • Frequency 40Hz to 70Hz, 1mHz accuracy exceeds IEC 61557-12 Class 0.02
  • Voltage/Current Harmonics up to 127th
  • Examines half-cycle voltage RMS and current RMS to detect sags, swell, or unbalance events
  • Analyze transient voltage at a rate of 32,000 samples per second
  • Detect voltage interruption based on threshold and hysteresis triggers
Acuvim 3 - PMU Synchrophasor

PMU SYNCHROPHASOR

IEEE C37.118 compliant for precise, high rate synchronized measurements and data transmission used in power grid systems for real-time monitoring, control, and analysis of electrical parameters.

Key Specifications:

  • IEEE C37.118 compliant meter for synchrophasor measurements
  • Real-time synchronized measurement of frequency, rate of change of frequency, and phasors for magnitude and phase angle of voltage and current
  • Timestamp accuracy ensures different PMU data are synced across a power grid
  • Ideal for Frequency Control Ancillary Service (FCAS) or Dynamic Containment (DC) application
  • Frequency and rate of change of frequency (ROCOF) detection against islanding
Acuvim 3 - Revenue Grade Metering

REVENUE GRADE METERING

The highest standard of accuracy and data reliability when used for measurement and verification. Allows monitoring of real-time power and energy parameters for analysis and management. Use the time of use (TOU) function to schedule calendar tariff and structure assignments.

Key Specifications:

  • ANSI C12.20 Class 0.1 and IEC 62053-22 Class 0.1s Accuracy for Active Energy
  • IEC 62053-24 Class 0.5s Accuracy for Reactive Energy
  • Import/export/net/total and Four-Quadrant energy measurements
  • Time of Use (TOU) support with 8 tariff rates and up to 12 historic billing periods
Acuvim 3 - Multi-protocol Support

MULTI-PROTOCOL SUPPORT

Communicate seamlessly with the Acuvim 3 meter across different systems. Support for multiple industrial protocols can be used for data transmission. Provides interoperability between different networks and devices, and is ideal for future proofing new or existing integrations.

Key Specifications:

  • IEC 61850, EtherNet/IP, PMU Modbus-RTU, Modbus-TCP/IP, BACnet-IP, DNP3 TCP, & SNMP
  • Communicate via serial over RS485, Ethernet, Wi-Fi, digital I/O, analog I/O, or relay output
Acuvim 3 - HMI Display and Web Interface

HMI DISPLAY AND WEB INTERFACE

Acuvim 3 features a wide 7-inch touchscreen display screen in full colour for easy meter control and management. Access the meter from a remote location using the remote access feature or webpage interface to configure meter settings or view real-time energy parameters.

Key Specifications:

  • Easily setup remote access with a static URL for external network access
  • Generate secure authentication token to access Acvuim 3 meter via any web browser
  • Full colour 800x480 resolution optional display unit for DIN rail or panel mount
Acuvim 3 - Power Quality Analysis Icon
Power Quality Analysis
Acuvim 3 - Power Quality Analysis

POWER QUALITY ANALYSIS

Acuvim 3 is specialized to monitor and analyze the characteristics of electrical power signals for quality. IEC 61000-40-30 Class A compliant, it analyzes for abnormal harmonic, frequency, current, voltage and transient fluctuations. Waveform capture are sampled up to 512 samples/cycle and saved as a COMTRADE file or can be posted to a remote server via HTTP/FTP.

Key Specifications:

  • IEC 61000-4-30 Class A compliant metering and third party certified by NMi for frequency, phase angle, voltage, and current
  • Capture waveform events in COMTRADE file formats and posted to remote server via HTTP/FTP
  • Sample up to 60 cycles before and up to 300 cycles after PQ events
  • Fast log waveform capture for half-cycle voltage and current RMS. Stored in a CSV file for post transfer to remote server
  • Frequency 40Hz to 70Hz, 1mHz accuracy exceeds IEC 61557-12 Class 0.02
  • Voltage/Current Harmonics up to 127th
  • Examines half-cycle voltage RMS and current RMS to detect sags, swell, or unbalance events
  • Analyze transient voltage at a rate of 32,000 samples per second
  • Detect voltage interruption based on threshold and hysteresis triggers
Acuvim 3 - PMU Synchrophasor Icon
PMU Synchrophasor
Acuvim 3 - PMU Synchrophasor

PMU SYNCHROPHASOR

IEEE C37.118 compliant for precise, high rate synchronized measurements and data transmission used in power grid systems for real-time monitoring, control, and analysis of electrical parameters.

Key Specifications:

  • IEEE C37.118 compliant meter for synchrophasor measurements
  • Real-time synchronized measurement of frequency, rate of change of frequency, and phasors for magnitude and phase angle of voltage and current
  • Timestamp accuracy ensures different PMU data are synced across a power grid
  • Ideal for Frequency Control Ancillary Service (FCAS) or Dynamic Containment (DC) application
  • Frequency and rate of change of frequency (ROCOF) detection against islanding
Acuvim 3 - Revenue Grade Metering Icon
Revenue Grade Metering
Acuvim 3 - Revenue Grade Metering

REVENUE GRADE METERING

The highest standard of accuracy and data reliability when used for measurement and verification. Allows monitoring of real-time power and energy parameters for analysis and management. Use the time of use (TOU) function to schedule calendar tariff and structure assignments.

Key Specifications:

  • ANSI C12.20 Class 0.1 and IEC 62053-22 Class 0.1s Accuracy for Active Energy
  • IEC 62053-24 Class 0.5s Accuracy for Reactive Energy
  • Import/export/net/total and Four-Quadrant energy measurements
  • Time of Use (TOU) support with 8 tariff rates and up to 12 historic billing periods
Acuvim 3 - Multi-Protocol Support Icon
Multi-Protocol Support
Acuvim 3 - Multi-Protocol Support

MULTI-PROTOCOL SUPPORT

Communicate seamlessly with the Acuvim 3 meter across different systems. Support for multiple industrial protocols can be used for data transmission. Provides interoperability between different networks and devices, and is ideal for future proofing new or existing integrations.

Key Specifications:

  • IEC 61850, EtherNet/IP, PMU Modbus-RTU, Modbus-TCP/IP, BACnet-IP, DNP3 TCP, & SNMP
  • Communicate via serial over RS485, Ethernet, Wi-Fi, digital I/O, analog I/O, or relay output
Acuvim 3 - HMI Display and Web Interface Icon
HMI Display and Web Interface
Acuvim 3 - HMI Display and Web Interface

HMI DISPLAY AND WEB INTERFACE

Acuvim 3 features a wide 7-inch touchscreen display screen in full colour for easy meter control and management. Access the meter from a remote location using the remote access feature or webpage interface to configure meter settings or view real-time energy parameters.

Key Specifications:

  • Easily setup remote access with a static URL for external network access
  • Generate secure authentication token to access Acvuim 3 meter via any web browser
  • Full colour 800x480 resolution optional display unit for DIN rail or panel mount

Acuvim 3 Diagram

Power Quality MonitoringFCAS/DC
Acuvim 3 - Power Quality Monitoring
Acuvim 3 - FCAS/DC

Acuvim 3 Product Map

Acuvim 3 Product Map
1

Status Bar

Connection status (Wi-Fi, Ethernet, I/O) and date/time

 8

Current Input

Current wiring terminal for 333mV/Rogowski coil, 5A/1A input

2

Touchscreen HMI Display

Full-colour 7-Inch LCD (800 x 480) touchscreen

 9

Dual Ethernet Ports

Two RJ45 connectors with IEEE1588 support
3

Display Controls

Home key and status/alarm/energy pulse output LEDs

 10

USB-C Port

Modbus RTU connection
4

Antenna Input

2.4GHz Wi-Fi interface for Access Point/Station mode

 11

Digital Output

Terminals for single digital output (dry contact)
5

Digital Input

Terminals for four digital inputs

 12

IRIG-B

PMU time synchronization
6

Power Supply

Control power input terminals

 13

RS-485

Modbus RTU connection
7

Voltage Input

Voltage wiring terminals
1

Status Bar

Connection status (Wi-Fi, Ethernet, I/O) and date/time
2

Touchscreen HMI Display

Full-colour 7-Inch LCD (800 x 480) touchscreen
3

Display Controls

Home key and status/alarm/energy pulse output LEDs
4

Antenna Input

2.4GHz Wi-Fi interface for Access Point/Station mode
5

Digital Input

Terminals for four digital inputs
6

Power Supply

Control power input terminals
7

Voltage Input

Voltage wiring terminals
8

Current Input

Current wiring terminal for 333mV/Rogowski coil, 5A/1A input

9

Dual Ethernet Ports

Two RJ45 connectors with IEEE1588 support
10

USB-C Port

Modbus RTU connection
11

Digital Output

Terminals for single digital output (dry contact)
12

IRIG-B

PMU time synchronization
13

RS-485

Modbus RTU connection

Acuvim 3 Models

Acuvim 3
Application Revenue Grade Metering & Power Quality Monitoring
Standard Compliance IEC 61000-4-30 Class A (Power Quality)
IEC 61557-12 Class 0.1 (Voltage/Current RMS)
IEC 62053-22 Class 0.1s (Active Energy)
ANSI C12.20 Class 0.1 (Active Energy)
IEC 62053-24 Class 0.5s (Reactive Energy)
IEEE C37.118 (Phasor Measurement Unit)
Data Logging 32GB Internal Memory
Time-of-use
Waveform Capture
Current Sensing Input 5A/1A, 333mV or RCT (Rogowski)
Power Supply P1: 100-415Vac / 100-300Vdc
P2: 20-60Vdc
Panel Mount Option
DIN-Rail Option
Acuvim 3
Application Revenue Grade Metering & Power Quality Monitoring
Standard Compliance IEC 61000-4-30 Class A (Power Quality)
IEC 61557-12 Class 0.1 (Voltage/Current RMS)
IEC 62053-22 Class 0.1s (Active Energy)
ANSI C12.20 Class 0.1 (Active Energy)
IEC 62053-24 Class 0.5s (Reactive Energy)
IEEE C37.118 (Phasor Measurement Unit)
Data Logging 32GB Internal Memory
Time-of-use
Waveform Capture
Current Sensing Input 5A/1A, 333mV or RCT (Rogowski)
Power Supply P1: 100-415Vac / 100-300Vdc
P2: 20-60Vdc
Panel Mount Option
DIN-Rail Option

Acuvim 3 I/O Modules

Acuvim 3 I/O Module Product Image
AXM-IO1
 Acuvim 3 I/O Module Product Image
AXM-IO2
 Acuvim 3 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
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 3 Accessories

USB-to-RS485 Converter
USB-to-RS485 Converter

This plug-and-play USB to Serial RS485 Converter is designed to provide a convenient and reliable connection from the Acuvim 3 meter to other devices with a USB port.

AC Current Transformers
AC Current Transformers

The Acuvim 3 power meter supports multiple current inputs: 5A/1A, 333mV and Rogowski Coil. They are among the industry’s highest accuracy metering CTs which offer exceptional results.

Inline Fuse
Inline Fuse

In-line fuse holders are used in places with spatial constraints to provide circuit protection in the event of a fault. It is designed to be safe to the touch and flexible for use in different types of applications.

Test Lead & Voltage Clip
Test Lead & Voltage Clip

Testing leads are interfaced with two banana insertions for a secure fit. The voltage clip is insulated in a EPR case for a CAT IV safety rating and a strong installation alligator clamp.

Standard or Custom-made Enclosures
Standard or Custom-made Enclosures

As a UL 508A panel shop, Accuenergy builds pre-wired and factory-tested enclosures to save you time and cost on installation. With the support of panel mount option, the Acuvim 3 can be easily fit into the NEMA-rated panels.

Acuvim 3 FAQ

What is the sampling rate per cycle for the Acuvim 3?

Acuvim 3 has a sampling rate of 1024 samples/cycle, and generates waveforms form voltage and current at up to 512 samples/cycle, with RMS values updated every half-cycle. It detects transient voltage by analyzing voltage samples at 32,000 samples/second.

What is the frequency range of the Acuvim 3?

The Acuvim 3 has a frequency range of 40Hz to 70Hz under 50Hz/60Hz nominal condition.

What is the refresh rate for the Acuvim 3's screen?

The refresh rate of the meter's screen is about 3 second.

How many modules can be attached to the Acuvim 3 simultaneously?

A maximum of three I/O modules can be attached to the meter at the same time.

What is the cut-out size needed for a panel mount installation?

The Acuvim 3 meter can fit in a standard 92mm x 92mm rectangular or 102mm diameter circular cutout.

Can the Acuvim 3 be DIN-mounted?

The meter can be panel mounted or, DIN rail mounted with or without remote display.

If the Acuvim 3 is wired incorrectly, can I correct the wiring without shutting it down?

Yes, you can correct wiring errors easily and safely with phase mapping or phase polarity via meter web server without causing a costly shutdown by doing it physically.

Can the Acuvim 3 record based on an event?

Yes, you can trigger data logging based on alarms, events, or user-configurable intervals.

Can the Acuvim 3 generate reports?

Yes, the meter can generate standard Power Quality reports such as EN50160, IEEE519, ITIC (CBEMA) Curve, and SEMI-F47 Curve. The reports can be easily downloaded or posted.

Do I need special CTs?

The Acuvim 3 supports industry-standard 5A/1A, 333mV and Rogowski coil CTs.