Acuvim III

The New and Improved Standard for Power & Energy Measurement

Acuvim 3 is the ultimate power quality and revenue grade energy meter fully compliant to IEC 61000-4-30 Class A standard. Designed with an industry-leading ANSI C12.20 Class 0.1/IEC 62053-2 Class 0.1S measurement accuracy and able to precisely detect power quality anomalies in critical distributed energy systems. Data, analysis and control reports are easily accessible anywhere when using the optional 7-inch colour touch screen remote display unit or web interface

Core Product Features

Core Features

The Acuvim II is able to be updated and flashed with custom firmware to ensure compatibility with your environment. This is normally completed at the factory during manufacturing

ANSI C12.20/IEC 62053-22 Class 0.1S accuracy for revenue metering
IEC 61000-4-30 Class A compliant power quality monitor & IEC 61000-4-15 compliant flicker measurement for voltage fluctuations
Waveform capture detection up to 512 sample per cycle
Multi-protocol communications: IEC 61850, EtherNet/IP, Modbus-RTU, Modbus-TCP/IP, BACnet-IP, BACnet MS/TP, DNP3 TCP, SNMP, and IPv6/IPv4
Dual Ethernet port, RS485, Wi-Fi (2.4GHz), IRIG-B, 4 digital I/O, and USB-C interface
32 GB Data logger and data post: Multiple configurable dataloggers with user-selectable logging interval and parameters
Touchscreen HMI display, web interface and remote access for easy control and management

Ordering Options

To order the correct specifications for this meter, please select one from each of the following options

Select Meter

Acuvim 3

Select Mount

D: LCD Display
M: DIN-Rail Mount (opt. display avail.)

Select Current Input

5A: 5/1 (A)
mV: 333 & RIK Coil

Select Power Input

P1V3: 100~415Vac, 50/60Hz, 100~300Vdc
P2V3: 20~60Vdc

Ordering Example: Acuvim-3-D-5A-P1V3 (Acuvim 3, with LCD Display, suited for 5A/1A Current Input and with 100-415Vac @60Hz)

Product Use Case

In the below example use case, the Acuvim II is connected to Tesla Solar arrays to moniter power generation. For ease of deployment, these meters are separately connected to AcuMesh network devices that create a mesh network for sending and reporting data to the AcuLink data acquistion server.

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Acuvim 3 Power Monitoring Meter - Power Quality Analysis

IEC 61000-4-30 Class-A compliant metering:
+ Voltage/Current RMS measurement updated at half-cycle, with IEC 61557-12 Class 0.1 accuracy
+ Frequency 40Hz to 70Hz, 1mHz accuracy exceeds IEC 61557-12 Class 0.02 requirements
+ IEC 61000-4-15 Class F1 flicker voltage fluctuation measurement updated at 10-minute/2-hour intervals
+ Voltage/Current Harmonics up to 127th

PQ event monitoring:
+ 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 II Power Monitoring Meter - Waveform Capture and Logging

• Sample up to 60 cycles before and up to 300 cycles after PQ events
• High resolution waveform sampling rate up to 512 samples per cycle for voltage and current
• DI triggered waveform
• 10-second extended waveform capture
• Capture waveform events in COMTRADE file formats and posted to remote server via HTTP/FTP
• Fast log waveform capture for half-cycle voltage and current RMS. Stored in a CSV file for post transfer to remote server
• Configure alarms to automatically send waveform capture event-based emails

Compatible Communication Protocols

• Modbus RTU Protocol via RS485
• DNP3 Level 2 over IP
• IEC 61850
• Ethernet (Modbus TCP, HTTP, SMTP, SNTP, HTTPs Post, FTP)
Profibus DP
• BACnet IP, BACnet MS/TP
• Dual RS485 Communication Ports
• Wi-Fi and Ethernet dual communication (Modbus TCP, HTTP, SMTP, SNTP, HTTPs Post, FTP)
• Mesh wireless slave module 868Hz or 900Hz

Power Quality Event / Data Logging

Acuvim IIR/IIW offers 3 assignable historical logs where the majority of the metering parameters can be recorded. The onboard memory is up to 8 MB and each log size is adjustable. A real time clock allows for any logged events to be accurately time stamped. With AXM-WEB2 module added, the memory size expands to industry-leading 8GB memory with 1-second interval datalogging. When a power quality event happens, such as voltage sag and swell, etc., Acuvim IIW will record the timestamp and the triggering condition of the event. It can save up to 50, 000 power quality events

I/O Expansion Modules

The E-module® technique was adopted for its flexibility and easy expansion of the I/O function of Acuvim II. A maximum of 3 modules can be used for one meter. Digital input, digital output, pulse output, relay output, analog input and analog output are provided by I/O option modules

Time of Use (TOU)

Users can assign up to 4 different tariffs (sharp, peak, valley and normal) to different time periods within a day according to the billing requirements. The Acuvim IIE meter will calculate and accumulate energy to different tariffs according to the meter’s internal clock timing and TOU settings

Waveform Capture

Acuvim IIW can record 100 groups of voltage and current waveforms. It provides the waveform record of 10 cycles before and after the triggering point. It also supports a settable triggering condition. COMtrade wavefrom file format is available from waveform capture

Automatic Frequency Adaptation

Rated frequency is adjusted automatically to local frequency such as 50Hz or 60Hz. The same meter can be used in countries with different electrical frequencies.Compatible with different current transformers such as 5A, 1A, 80mA, 100mA, 200mA, 333mV output CT and Rogowski coils