CEM-D211 and CEM-D311 — 3-Phase Energy Meters for Industrial and Commercial Facilities

The CEM-D211 and CEM-D311 from Circutor are intelligent 3-phase energy meters that combine the functionality of an Energy Meter and Power Analyzer in a single device. Designed for comprehensive energy measurement and management, both models support seamless integration with SCADA, BMS, and Energy Management Systems across industrial plants, commercial buildings, and data centers.

As energy costs become one of the most significant operating expenses for businesses today, real-time energy monitoring gives engineers, facility managers, and procurement teams the data they need to cut costs, improve efficiency, and meet sustainability targets.

What Can the CEM-D211 and CEM-D311 Measure?

Both meters deliver complete electrical parameter measurement in a single unit:

• Accumulated energy (kWh)
• Voltage and Current
• Active, apparent, and reactive power (kW, kVA, kvar)
• Frequency and Power Factor (PF)
• Import and export energy (4-Quadrant measurement)

All values are displayed on an LCD screen and transmitted directly to SCADA, BMS, or Energy Management Systems via RS-485 Modbus RTU.

Plug-and-Play Integration with Energy Management Systems

The CEM-D211 and CEM-D311 communicate via RS-485 Modbus RTU, enabling direct connection to energy management software such as PowerStudio SCADA, Building Management Systems (BMS), or existing SCADA infrastructure — no additional middleware required.

Engineers and facility managers can use the data to analyze consumption trends, monitor equipment performance, and build actionable energy reduction strategies.

2-Channel Digital Input — Manage All Utilities from One Point

Beyond electrical measurement, the CEM-D211 and CEM-D311 feature 2 digital input channels for integrating external utility signals, including:

• Water meter and gas meter pulse inputs
• Separating grid power from generator (GenSet) consumption
• Monitoring energy drawn from UPS systems

This gives operations teams and procurement managers a unified view of all utility costs in a single dashboard.

Solar Rooftop Ready — 4-Quadrant Measurement

Both meters support 4-Quadrant energy measurement, making them fully compatible with on-site solar generation systems:

• Grid consumption (Import)
• Solar energy generated (Generation)
• Surplus energy exported back to the grid (Export)

Ideal for factories and buildings with Solar Rooftop installations that require accurate generation reporting for performance tracking and ROI analysis.

Choose the Right Model for Your Load

CEM-D211 — Direct Measurement up to 100A

A direct-connect meter requiring no Current Transformer (CT). Best suited for:

• Office buildings, apartments, retail outlets
• Medium-scale loads
• Sub-metering and tenant billing systems

CEM-D311 — Indirect Measurement via Current Transformer (CT)

Designed for high-power applications, working in conjunction with external CTs. Best suited for:

• Industrial plants and large commercial buildings
• Main Distribution Boards (MDB) and primary electrical systems
• High-current loads exceeding 100A

International Accuracy Standards

The CEM-D Series is certified to internationally recognized measurement standards:

• IEC 62053-21 Class 1 for Active Energy
• IEC 62053-23 Class 2 for Reactive Energy
• MID (EN 50470) — European standard for fiscal metering and utility billing

MID certification makes the CEM-D211 and CEM-D311 suitable for commercial sub-metering in office buildings, shopping centers, and multi-tenant properties where legally traceable billing is required.

CEM-D211 and CEM-D311 — Application Overview

Install CEM-D211 / CEM-D311 with AVERA

AVERA provides end-to-end Energy Monitoring system design and installation by a team of qualified engineers, supplying and commissioning the CEM-D211, CEM-D311, and the full range of Circutor energy management products.

For spec sheets, quotations, or expert advice on your energy metering project, contact the AVERA team today.