The EV300 Series power and energy panel meter is an affordable, user-friendly three-phase metering solution for monitoring power, voltage, current, and bi-directional energy. Certified to utility revenue grade accuracy standards, its standard panel mount design, Modbus-RTU communications, and array of I/O and alarm options make this economical meter a valuable tool in any industrial or commercial environment.
| NAME | CATEGORY | |
|---|---|---|
| Product Datasheet | Download PDF | |
| Installation User's Manual | Download PDF | |
| Utility Software | ViewSoftware |
A linear load is a non-distorted, sinusoidal (sine) wave with symmetrical transitions between peaks and valleys and can be accurately measured with an "average sensing" meter. However, because electronic loads, such as VFDs, LED lighting systems, or computers, can create non-sinusoidal or distorted AC waveforms, a true-RMS ("root mean square") meter must be used to collect accurate data. True-RMS meters do not rely on the "averaging" method to calculate AC current. Instead, they use the Root Mean Square formula to accurately calculate distorted waveforms. When measuring a distorted load, a true-RMS meter will precisely calculate the amperage while the average sensing meter may under- or over-report the same load by 15% or more. Any measurement project can benefit from the superior accuracy of a true-RMS meter.
The EV300 is a capable, multifunction power and energy meter that delivers robust, accurate measurements in industrial settings at an affordable price. Available with a variety of I/O options, the EV300 can be configured to meet any advanced project requirements.
| Select an EV300 Model |
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| Choose the EV387 to monitor voltage & current or the advanced EV390 to monitor kW, kVar, kVA, energy, & more. |
| Choose an I/O Option |
| Equip the meter with various input/output options like DI, DO (pulse), AO (4-20mA), or RO. |
| Choose Optional Accessories |
| Customize your meter with a range of helpful accessories. |
The EV300 Series panel meter meets utility revenue grade accuracy standards, making it a suitable choice for any application that requires exceptional metering precision.
Measure the flow of energy in two directions: The EV300 Series panel meter is capable of bi-directional metering, making it ideal for renewable energy applications such as solar or wind.
The EV300 Series includes a built-in RS485 port designed for Modbus-RTU communication protocol, ensuring easy interoperability between devices within industrial environments.
Configure the EV300 Series with a variety of I/O options. Whether monitoring switch status, providing energy information to a data acquisition server, interfacing with a PLC, or triggering an alarm, there is a I/O combination suited to your application.
 Revenue Grade Accuracy |
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The EV300 Series panel meter meets utility revenue grade accuracy standards, making it a suitable choice for any application that requires exceptional metering precision.
 Bi-Directional Energy Metering |
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Measure the flow of energy in two directions: The EV300 Series panel meter is capable of bi-directional metering, making it ideal for renewable energy applications such as solar or wind.
 Modbus-RTU Communications |
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The EV300 Series includes a built-in RS485 port designed for Modbus-RTU communication protocol, ensuring easy interoperability between devices within industrial environments.
 Multiple I/O Options |
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Configure the EV300 Series with a variety of I/O options. Whether monitoring switch status, providing energy information to a data acquisition server, interfacing with a PLC, or triggering an alarm, there is a I/O combination suited to your application.
EV387 | EV390 | |
|---|---|---|
| Application | Revenue-grade voltage & current panel meter | Revenue-grade power & energy panel meter |
| Metering | Voltage, Current, Reactive Energy | Voltage, Current, Power, Reactive Power, Apparent Power, Power Factor, Frequency, & Energy |
| I/O Options | 2 DI (See table for more I/O options) | |
| Modbus-RTU | ||
| Panel Mount Option | ||
| Current Sensing Input | 5A/1A | |
| Power Supply | Choose from: P1 (100-415Vac, 50/60Hz, 100-300Vdc) or P2 (20-60Vdc) | |
EV387 |
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| Application | Revenue-grade voltage & current panel meter |
|---|---|
| Metering | Voltage, Current, Reactive Energy |
| I/O Options | 2 DI (See table for more I/O options) |
| Modbus-RTU | |
| Panel Mount Option | |
| Current Sensing Input | 5A/1A |
| Power Supply | Choose from: P1 (100-415Vac, 50/60Hz, 100-300Vdc) or P2 (20-60Vdc) |
EV390 |
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| Application | Revenue-grade power & energy panel meter |
|---|---|
| Metering | Voltage, Current, Power, Reactive Power, Apparent Power, Power Factor, Frequency, & Energy |
| I/O Options | 2 DI (See table for more I/O options) |
| Modbus-RTU | |
| Panel Mount Option | |
| Current Sensing Input | 5A/1A |
| Power Supply | Choose from: P1 (100-415Vac, 50/60Hz, 100-300Vdc) or P2 (20-60Vdc) |
BASE METER | E1 | E2 | E3 | E4 | |
|---|---|---|---|---|---|
| Digital Input | 2 | 6 | 6 | 6 | 6 |
| Digital Output (Pulse) | 2 | 2 | |||
| Analog Output (4-20mA) | 2 | 2 | |||
| Relay Output | 2 | 2 | |||
| Power Supply for DI (24Vdc) | 1 | 1 |
BASE METER |
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| Digital Input | 2 |
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E1 |
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| Digital Input | 6 |
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| Relay Output | 2 |
| Power Supply for DI (24Vdc) | 1 |
E2 |
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| Digital Input | 6 |
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| Digital Output (Pulse) | 2 |
| Power Supply for DI (24Vdc) | 1 |
E3 |
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| Digital Input | 6 |
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| Digital Output (Pulse) | 2 |
| Analog Output (4-20mA) | 2 |
E4 |
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| Digital Input | 6 |
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| Analog Output (4-20mA) | 2 |
| Relay Output | 2 |
Designed for EV300 Series energy meter’s 96mm by 96mm display. Crucial in harsh environments, it increases the IP environmental rating of a meter's display to IP66 or NEMA 4X.
This plug-and-play USB to Serial RS485 Converter is designed to provide a convenient and reliable connection from EV300 meters to other devices with a USB port.
Pre-configured, pre-wired panel solution is ideal for on-site installations need to meet regional regulatory safety and environmental compliance. All panels are quality tested to be reliable and fault-free.
High Specification Line of AC Current Transformers. Our high accuracy industrial split-core and flexible current transformers are among the industry's highest specification CT and offer exceptional value.
The EV300 comes with an RS485 communication port capable of Modbus-RTU protocol.
Yes, the EV300 is capable of measuring voltage and current in highly-distorted, non-linear loads such as VVVF (variable voltage variable frequency), electric ballasts, or computer systems.
The EV300 can be field-configured to work with either 5A or 1A industrial output current transformers.
