XPR3SS EM07 3-Phase Bidirectional WiFi Energy Meter Instruction Manual

1. Introduction

The XPR3SS EM07 is an advanced 3-Phase 4-Wire WiFi Smart Energy Meter designed for accurate and intelligent real-time electricity monitoring. This device is suitable for residential, commercial, industrial, solar, EV charging, generator, and heavy-load applications. It provides live monitoring of electrical parameters directly through a smartphone application.

Key features include:

• 3 Phase 4 Wire Energy Meter for L1, L2, and L3 phase monitoring.
• 200A CT Clamp Support for high-capacity electrical systems.
• WiFi Smart Connectivity compatible with Tuya Smart App and Smart Life App.
• Real-Time Electrical Monitoring: Voltage, Current, Power, Energy Consumption, Frequency, Power Factor.
• Bidirectional Energy Measurement, ideal for solar installations.
• LCD Digital Display for simultaneous viewing of multiple electrical values.
• DIN Rail Installation for standard electrical panels.
• Non-contact current sensing via Mutual Induction CT Measurement.

2. Safety Information

Warning: Professional installation is strongly recommended for electrical safety and proper configuration of this device. Incorrect installation can lead to electrical hazards or damage to the equipment.

• Always disconnect power before installation or maintenance.
• Ensure all wiring complies with local electrical codes and regulations.
• Do not attempt to open or repair the device yourself. Refer to qualified personnel.
• Use appropriate personal protective equipment (PPE) when working with electrical systems.

3. Package Contents

Verify that all items are present in the package:

• 1 x XPR3SS EM07 3-Phase WiFi Smart Energy Meter (Protector)
• CT Clamp Sensors (Quantity may vary based on model, typically 3 for 3-phase)
• 1 x User Manual
• 1 x Warranty Card

4. Product Overview

The XPR3SS EM07 meter provides comprehensive monitoring and protection features. Its compact design allows for easy integration into existing electrical panels.

Figure 4.1: XPR3SS EM07 3-Phase WiFi Energy Meter with included CT Clamps. The meter features an LCD display and control buttons for navigation and settings.

4.1. Open-Type Current Transformers (CT Clamps)

The EM07 uses open-type current transformers for non-invasive current measurement. These CT clamps are easy to install and disassemble without disconnecting power supply wires.

Figure 4.2: Detailed view of open-type current transformers, showing installation method and a table of dimensions for various current ratings (80A to 1000A). Ensure the CT direction (P1→P2 or K→L) matches the energy flow for correct bidirectional sensing.

4.2. Display Modes and Interface

The meter's LCD provides various display modes to show electrical parameters. Press the 'MODE' button to cycle through different parameters.

Figure 4.3: Illustration of different display modes (Mode 1 and Mode 2) showing total electricity consumption, forward/reverse consumption, voltage, current, power, power factor, and frequency. Also includes a table defining the meter's interface terminals (e.g., L1, L2, L3, N, DI1, R0, R1, Vn, V1, V2, V3).

5. Setup and Installation

This section provides instructions for installing and wiring the XPR3SS EM07 energy meter.

5.1. DIN Rail Mounting

The EM07 is designed for standard 35mm DIN rail installation. Simply clip the device onto the DIN rail within your electrical panel or distribution board.

5.2. Wiring Diagrams

Follow the wiring diagrams carefully. Incorrect wiring can damage the device or pose safety risks.

Figure 5.1: Basic wiring diagram for the pure energy meter using three-phase split-core current transformers. Connect the AC input line to the socket near the electrical box to supply power to the power clamp. Apply the CT to the cable, ensuring correct direction.

Figure 5.2: Comprehensive wiring diagram for the energy meter integrated with a protector and an external contactor. This setup allows for advanced protection functions and remote control.

Figure 5.3: Wiring instructions for integrating a residual current transformer (not included) and a shunt trip release with a three-phase circuit breaker. Terminal 15 is COM, Terminal 16 is NO (max 5A). Connect one wire of the shunt trip release to the C-phase (Phase C) point of the circuit breaker's output line. Warning: This wire must connect to the circuit breaker output line, not input line, to prevent damage to the shunt trip release.

6. Operating Instructions

Learn how to use your XPR3SS EM07 for effective energy monitoring and protection.

6.1. Smart App Monitoring

The EM07 supports WiFi connectivity for remote monitoring via the Tuya Smart App or Smart Life App. Download the app from your device's app store and follow the in-app instructions to pair your meter.

Figure 6.1: The Tuya Smart App interface displaying real-time energy data, allowing users to monitor voltage, current, power, and energy consumption from anywhere.

6.2. Alarm Settings and Protection Functions

The device includes various protection functions and customizable alarm settings. These can be configured via the mobile app.

Figure 6.2: Screenshot of the app's alarm settings interface, showing configurable thresholds for current leakage, temperature, under/over voltage, and current limit protection. The image also lists various protection features like over/under voltage, current, leakage, temperature, delay, timer switch, phase sequence, and remote control.

7. Maintenance

To ensure optimal performance and longevity of your XPR3SS EM07 energy meter, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
• Inspection: Periodically check all wiring connections to ensure they are secure.
• Environment: Ensure the operating environment remains within the specified temperature and humidity ranges (refer to Specifications).
• Firmware Updates: Check the Tuya Smart or Smart Life app for any available firmware updates to ensure the device has the latest features and security patches.

8. Troubleshooting

If you encounter issues with your XPR3SS EM07, refer to the following common troubleshooting steps:

• Device Not Powering On: Check the main power supply to the meter. Ensure all wiring connections are correct and secure.
• WiFi Connection Issues:
  • Ensure your WiFi network is 2.4GHz. The device may not support 5GHz networks.
  • Verify the WiFi password is correct.
  • Move the meter closer to your WiFi router or use a WiFi extender.
  • Restart your WiFi router and the energy meter.
  • Attempt the pairing process multiple times if initial attempts fail.
• Inaccurate Readings:
  • Verify that the CT clamps are installed correctly and in the right direction (P1→P2 or K→L).
  • Ensure the CT clamps are securely closed around the correct phase wires.
  • Check for any loose wiring connections.
• App Not Displaying Data: Ensure the meter is successfully connected to WiFi and the app. Check your internet connection.
• Protection Function Not Triggering: Verify that the alarm thresholds are set correctly in the app and that the wiring for any external protection devices (e.g., shunt trip release) is accurate.

For persistent issues, contact customer support.

9. Specifications

10. Warranty and Support

The XPR3SS EM07 3-Phase Bidirectional WiFi Energy Meter comes with a 1-year warranty from the date of purchase, covering manufacturing defects.

For technical support, troubleshooting assistance, or warranty claims, please contact XPR3SS customer service. Refer to the contact information provided on the warranty card or the official XPR3SS website.

Manufacturer: Yueqing Taixin Electric Co., Ltd
Importer/Packer: XPR3SS, Bengaluru