Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the EIAAMRYMITE EWB4CH-D1 WiFi Smart Switch. Please read this manual thoroughly before using the device to ensure proper functionality and safety.
The EWB4CH-D1 is a 4-channel WiFi smart switch designed for remote control of various electrical appliances. It supports both AC 85-250V and USB 5V power inputs and features dry contact outputs.
Safety Information
- Ensure power is disconnected before installation or maintenance.
- Installation should be performed by a qualified electrician if you are unfamiliar with electrical wiring.
- Do not expose the device to moisture or extreme temperatures.
- Adhere to all local electrical codes and regulations.
Product Overview
The EIAAMRYMITE EWB4CH-D1 is a versatile smart switch module. Key features include:
- Model: EWB4CH-D1
- Input Voltage: AC 85-250V or USB 5V
- Max Load: 10A per gang, 16A total
- WiFi Standard: 2.4GHz b/g/n
- Channels: 4 independent channels
- Output Type: Dry Contact (NC, COM, NO)
Figure 1: Overview of the EWB4CH-D1 Smart Switch. The image displays the device from an angled top-down perspective, showing the input terminals (85-250V), four control buttons (K1-K4) with a reset button, and four sets of output terminals labeled NC, COM, NO for each channel.
Setup and Installation
1. Wiring the Device
The EWB4CH-D1 supports two power input methods: AC 85-250V or USB 5V. Choose one method for powering the device.
- AC Power Input: Connect the AC 85-250V power supply to the "Input 85-250V" terminals.
- USB Power Input: Connect a 5V USB power source to the USB port.
For controlling external devices, use the dry contact outputs. Each channel has three terminals: NC (Normally Closed), COM (Common), and NO (Normally Open). Connect your load according to the desired switching behavior.
2. Connecting to the EWelink App
- Download the EWelink app from your smartphone's app store (iOS or Android).
- Register or log in to your EWelink account.
- Power on the EWB4CH-D1 device.
- Press and hold the "Reset" button on the device for approximately 7 seconds until the LED indicator blinks rapidly. This indicates pairing mode.
- In the EWelink app, tap the "+" icon to add a new device.
- Follow the on-screen instructions to connect the device to your 2.4GHz WiFi network. Ensure your phone is connected to the same 2.4GHz network during pairing.
- Once successfully added, you can rename the device and individual channels within the app.
Operating Instructions
1. Remote Control via EWelink App
After successful pairing, you can control the EWB4CH-D1 from anywhere using the EWelink app:
- Open the EWelink app and select your EWB4CH-D1 device.
- You will see four individual switches (K1, K2, K3, K4) corresponding to the four channels.
- Tap on a switch icon to toggle the respective channel ON or OFF.
- The app also allows you to set schedules, timers, and create smart scenes for automated control.
2. Manual Control
The device features four physical buttons (K1, K2, K3, K4) on its top surface. Pressing these buttons will manually toggle the corresponding channel's relay state.
Maintenance
- Keep the device clean and free from dust. Use a dry, soft cloth for cleaning.
- Regularly check wiring connections to ensure they are secure.
- Ensure the device is operating within its specified voltage and current limits.
- Periodically check the EWelink app for firmware updates for improved performance and features.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on. | No power supply or incorrect wiring. | Check AC 85-250V or USB 5V power connections. Ensure power source is active. |
| Cannot connect to WiFi. | Incorrect WiFi password, 5GHz network, or device too far from router. | Ensure correct 2.4GHz WiFi password. Move device closer to router. Reset device and try pairing again. |
| Device offline in EWelink app. | Loss of internet connection, power outage, or router issues. | Check your home internet connection. Restart your WiFi router. Power cycle the smart switch. |
| Relay not switching. | Incorrect load wiring, overloaded circuit, or faulty relay. | Verify load connections (NC, COM, NO). Ensure load current does not exceed 10A per channel or 16A total. |
Specifications
- Model: EWB4CH-D1
- Brand: EIAAMRYMITE
- Input Voltage: AC 85-250V / USB 5V
- Max. Load: 10A/Gang, 16A/Total
- WiFi Standard: IEEE 802.11 b/g/n 2.4GHz
- Radio Frequency: 2.4G
- Channels: 4
- Output Type: Dry Contact (NC, COM, NO)
- Operating Temperature: -20°C to 70°C (approximate, typical for similar devices)
- Dimensions: (Dimensions are not provided in the source, typical for similar devices)
Support and Warranty
For technical support or warranty inquiries, please contact your retailer or the manufacturer, EIAAMRYMITE. Refer to your purchase documentation for specific warranty terms and contact information.
For EWelink app related support, please visit the official EWelink website or their in-app support section.