Accuenergy – Acuvim II Power Meter

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.

Key Features:

Communication

• Modbus RTU protocol and BACnet MS/TP via RS485
• Wi-Fi and Ethernet Communication Channels (Modbus TCP, BACnet IP, HTTP, SMTP, SNTP, HTTPs, Post, FTP)
• PROFIBUS DP
• Dual RJ45 ports with RSTP daisy-chain and two individually configurable Ethernet ports

Data Logging

• Acuvim II meters offer three assignable historical logs and a real-time clock to record many metering parameters with accurate timestamping. Add the AXM WEB2 module to expand the memory to 8GB with an adjustable log size.
• WEB2 module offers additional granularity to data logging such as 1 second interval timing and max/min/average and instantaneous reading for real time parameters.

Fast Response

• 512 samples per cycle for measurement, 100ms and 20ms Modbus refresh rate, and 100ms and 50ms options Fast Logging for real time parameters including Frequency and Active Power.

Flexible Current Transformer Options

• The Acuvim II is directly compatible with Rogowski coils plus a variety of other current transformer outputs, including 5A, 1A, 80mA, 100mA, 200mA, and 333mV. All CTs are available from Accuenergy.

Power Quality Measurements

• Acuvim IIW offers IEC 61000-4-30 Class S compliant power quality event measurements. It is designed for monitoring and diagnosing power quality issues to improve efficiency and reliability, and enhance overall system performance. Perfect for energy management systems, building automation systems, and more.

Time of Use

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

Optional I/O Module

• Expand Acuvim II I/O functionality by connecting an optional I/O module. A maximum of three modules can be used per meter. Digital input, digital output, pulse output, relay output, analog input, and analogue output I/O modules are available.

Alarms

• Limits can be set for up to 16 indicated parameters with a specified time interval. Parameters that are over or under the setting limit and persist longer than the specified time interval will be recorded and trigger the Alarm DO. Choose from 80 available parameters.