What is the EM21 energy meter?

The EM21 is Carlo Gavazzi's three-in-one energy monitoring device that combines energy metering, power quality analysis, and data logging in a compact DIN rail package. It measures kWh, voltage, current, power factor, and harmonics with communication options for building management systems.

What communication protocols do Carlo Gavazzi energy meters support?

Carlo Gavazzi energy meters support Modbus RTU (RS485), Modbus TCP/IP, and BACnet protocols for integration with building automation systems, SCADA, and energy management software. Some models also offer pulse outputs for connection to utility meters or PLCs.

Can energy meters measure renewable energy production?

Yes, Carlo Gavazzi bi-directional energy meters can measure both imported (consumed) and exported (generated) energy. This is essential for solar PV installations, cogeneration systems, and any application where energy flows in both directions.

Energy / Power Quality Meters

Product Brochure Energy costs are becoming a significant expense in most processes. With increased energy unit costs, decreased generating capacity, and the environmental concerns with the burning of fossil fuels, it is important that companies reduce their electrical consumption.

Carlo Gavazzi offers a broad range of energy meters and power quality meters and transducers for monitoring energy consumption as well as problems with power quality.

In addition, with the move towards renewable energy, monitoring of photo-voltaic strings is becoming important in order to maximize generating capacity. The Gavazzi EOS Array system allows you to monitor the current, voltage, power, temperature, and irradiation levels of your entire solar installation.

In order to interface with external systems, output options include:

Relays
Analog
RS232
RS485
Ethernet (Modbus and BacNet)

In addition to the broad range of energy meters and power quality meters, Carlo Gavazzi also offers a number of software products for monitoring of a network of meters and transducers. This allows at-a-glance viewing of your complete power system.

Product Selector

CPT Series
Compact, cost effective transducer

• CPT Basic Version Datasheet
• CPT Advanced Version Datasheet

EM10 EM11 Series
Innovative single-phase energy meter

EM21 Series
Three-in-One energy monitoring device

EM26-96 Series
Energy Meters

WM5 Series
Advanced utility meter with revenue approval

EOS Array
Photovoltaic monitoring system