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WEM3080T Quickstart

If you are looking for a power meter , please read this article first. It will help you to confirm whether IAMMETER`s product meets your requirements quickly. How to choose the power meter with regard to your requirements

1. Hardware Installation

Video: How to install WEM3080T

3 phase energy monitor

No. Item Qty Remark
1 Wi-Fi Energy Meter 1 Wi-Fi Module Embedded
2 Split-core Current Transformer 3 150A, 250A or 500A CT optional
3 2.4G Wi-Fi Antenna 1

2. Typical Wiring Diagram

Please note:

  1. The break for the meter is optional. You can connect the meter directly to the main breaker or without the breaker.
  2. The CT direction (K->L) must align with the installation's wiring diagram.
  3. The phases are not pre-assigned for particular uses. This means you have the option to utilize Phase B and Phase C for grid monitoring, or Phase A and Phase B for tracking the inverter's output. Your task is simply to select the corresponding meter type in IAMMETER-cloud that matches your actual installation setup.

Wiring in a Single Phase Solar PV System

All IAMMETER three-phase meters are versatile and can operate in split phase, functioning as three individual single-phase meters.

In cases where both the solar PV and the grid are single-phase, a single three-phase meter is sufficient. You can install one phase on the grid side and another on the inverter side. The third phase is available for monitoring any special loads you may have. If there's no specific load to monitor, this third phase does not need to be connected.

3 phase energy meter wiring diagram in solar pv system

If you set up the phases as shown in the above picture, you should define the "meter-type" accordingly(Please refer to chapter 6).

Phase Meter Type
1 A Grid
2 B Load
3 C Solar

Wiring in a Single Phase Residential Electricity System

When using the three-phase meter in a single-phase system, it can operate as three individual single-phase meters. One phase can be designated as the main meter, with the remaining two serving as sub-meters. Please refer to the wiring diagram below for guidance on this setup.

three phase energy meter wiring diagram in single phase grid systeme

If you set up the phases as shown in the above picture, you should define the "meter-type" accordingly(Please refer to chapter 6).

Phase Meter Type
1 A Grid
2 B Load
3 C Load

Wiring in a Three Phase Residential Electricity System

The primary application of the three-phase meter is for installation in a three-phase system. The appropriate wiring diagram for this setup is provided below.

Please be aware that the WEM3080T is designed exclusively for use in 3-phase 4-wire systems (WYE/Star connection). It is not compatible with 3-phase 3-wire systems (Delta connection). If you have a 3-phase 3-wire system, you should opt for the WEM3080TD model instead.

three phase energy monitor in 3 phase grid system

If you set up the phases as shown in the above picture, you should define the "meter-type" accordingly(Please refer to chapter 6).

Phase Meter Type
1 A Grid
2 B Grid
3 C Grid

Split Phase Solar PV System

A split-phase or single-phase three-wire system is a prevalent type of single-phase electric power distribution in North America, commonly used in residential and light commercial applications. It involves supplying two 120 V AC lines to premises that are 180 degrees out of phase with each other concerning the neutral, along with a common neutral.

The WEM3080T is suitable for monitoring split phase solar PV systems. See the wiring diagram below for this setup.

Split Phase system

If you set up the phases as shown in the above picture, you should define the "meter-type" accordingly(Please refer to chapter 6).

Phase Meter Type
1 A Grid
2 B Grid
3 C inverter

Due to the balanced nature of the two-phase output, a single phase suffices for measuring the inverter output. This is achieved by internally configuring the meter to double the reading obtained from that single phase. Using a 3-Phase Energy Meter for Solar PV and Grid Consumption in a Split-Phase System

Three-Phase Solar PV System and 3-Phase Grid System

If you have both a 3-phase inverter and a 3-phase grid and wish to monitor both (although you have the option to monitor just one), you will require two 3-phase meters, and the wiring diagram is as below.

iammetermanual-20191113-L1

More wiring diagram

please refer to Energy meter Wiring diagram in solar pv system

3. Wi-Fi Setup

There are two ways to configure meter's WiFi settings. Setting up by mobile App is recommended by us. However, you can also set up it in the browser if you meet any problems when using App.

3.1 Set up by mobile App

Video: WiFi set up by mobile App

Step1, scan the QR code and download the mobile App

Download IAMMETER app

Step 2, search and connect the iMeter's access point signal iMeter_xxxxxxxx by your phone

Connect to the SSID of wifi energy meter

Step 3, Open app and find the iMeter

configure the wifi parameter by app

Tips: If the app prompts "Invalid device version", you need to setup the WiFi network by browser, same as 3.1 WEM3162 QuickStart

Step 4, Select the SSID of your home WiFi network;

select the wlan ssid of your router

Step 5, Enter password and save. After succesfully configure the WiFi settings, you will see that the IP address allocated for the iMeter.

input the password of your wifi networking

3.2 Set up in the browser

Video: WiFi set up in the browser

If you have successfully set up the meter's WiFi settings by step 3.1, then you can skip this step 3.2.

Wi-Fi Setup by web browser

4. Sign up by Mobile App

Sign up process in IAMMETER app

Tips: SN is the unique Serial Number of your iMeter. You can copy it from the iMeter's access point signal (iMeter_xxxxxxxx, xxxxxxxx is the SN).

5. Set the Time Zone

Time Zone

Tips: Time zone must be set according to where your meter located for correct data display and report on time basis.

6. Edit the Meter Type

Edit the Meter

Tips: It is "single phase" as default meter type in Iammeter system. You need to change the meter "Type" as "Three Phase"

7. Set the Use Type of Each CT

set the meter type of each CT

Tips: Please set the use type of each CT according to the actual CT installation. For example, if you clamp the CT of phase A onto grid, then you set its use type as "grid".

8. View the Data

8.1 Overview page of residential electricity system monitoring

Monitor your energy consumption in IAMMETER0-Cloud

Monitor your energy consumption in IAMMETER

8.2 Overview page of solar PV system monitoring

Monitor your solar PV system in IAMMETER-Cloud

View on Mobile App Monitor your solar PV system in IAMMETER APP

View on Web browser

View the web data from IAMMETER solar pv monitoring system

Tips: Please visit https://www.iammeter.com to login to the web portal. Same username and password as app. You can see more analysis report on web.

9. How to know that the meter already connected to your router

  1. After connected the meter to your home WiFi router, the iMeter's Wi-Fi access point signal (iMeter_xxxxxxxx) will be disappeared for security reason;
  2. You can find you iMeter in the network of your PC which is connected to the same home Wi-Fi network
  3. If you want to see the iMeter's signal (iMeter_xxxxxxxx), you can switch off your WiFi router or take the meter away to where there is no WiFi network coverage of your WiFi router.

Network

10. Home Assistant integration

Four ways (MQTT, Modbus/TCP, HACS, core integration) to integrate the Wi-Fi energy meter into the home assistant

Integrate the wifi energy meter into Home Assistant

11 More video tutorials

IAMMETER Energy monitor video tutorials

Please note that these videos tutorial only introduce a part of the functions of IAMMETER. For more detailed introductions, please refer to IAMMETER Docs

12 Integrate IAMMETER energy meter to third-party platforms other than Home assistant

Integrate IAMMETER energy meter to third-party platforms other than Home assistant

USE the wifi energy meter in the area that not has internet access

Reference

Use the 3 phase energy meter the way you like

Monitor your solar pv system with Home Assistant

Integrate IAMMETER energy meter to third-party platform

Monitor your solar pv system in IAMMETER cloud

Monitor your electricity usage in IAMMETER-cloud

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