1. Introduction
The Zemismart Smart Zigbee Ultrasonic Water Meter is an advanced device designed for precise water flow measurement and consumption tracking. Featuring an LCD display and integrated valve control, it offers both local and remote management capabilities. This water meter utilizes Zigbee technology for smart home integration, compatible with the Tuya App and Home Assistant (requires an add-on). It is available in DN15, DN20, and DN25 sizes to suit various plumbing requirements.
2. Safety Information
- This device is a precision measuring instrument. Handle with care to avoid damage.
- Installation should be performed by a qualified professional to ensure proper plumbing and electrical connections.
- Ensure the water meter is installed in a location protected from extreme temperatures and direct sunlight, unless specifically rated for such conditions.
- Do not attempt to disassemble or repair the device yourself. Contact customer support for assistance.
- Ensure all connections are watertight to prevent leaks.
3. Product Overview
The water meter features an LCD display for local data viewing, a photoelectric interface, and a control button. It is equipped with an integrated valve for water flow control.
3.1. Available Sizes
The water meter is available in three common pipe diameters:
- DN15
- DN20
- DN25
3.2. Key Features
- Water Quantity Measurement: Measures total water consumption, instantaneous flow rate, and pipe temperature.
- Data Display: Local LCD display and detailed historical data via Tuya App.
- Remote Control Protection: Control the integrated valve remotely via the Tuya App or locally via the panel button.
- Threshold Alarms: Sends alarm messages to the user via the app when abnormal conditions are detected.
- Smart Home Integration: Works with Tuya Zigbee Hub and can be integrated into Home Assistant (requires add-on).
4. Specifications
| Parameter | Description |
|---|---|
| Product Model | 214C |
| Diameter Options | DN15, DN20, DN25 |
| Q3 (m³/h) | DN15: 2.5, DN20: 4.0, DN25: 6.3 |
| Q3/Q1 | 250 |
| Pressure Loss | Δp40 |
| Accuracy Class | Class 2 |
| Maximum Working Pressure | 1.0Mpa |
| Temperature | T50 |
| Power | DC3.6V Lithium Battery |
| Protection Rating | IP68 |
| Installation | Horizontal or Vertical |
| Dimensions (DN15) | Length: 142mm, Height: 98.2mm, Width (with connectors): 165mm |
| Dimensions (DN20) | Length: 142mm, Height: 98.2mm, Width (with connectors): 195mm |
| Dimensions (DN25) | Length: 142mm, Height: 98.2mm, Width (with connectors): 225mm |
5. Setup
5.1. Installation Conditions
- The ultrasonic water meter is a precision measuring instrument; handle it lightly.
- When installing, ensure the arrow mark on the meter is consistent with the direction of water flow in the pipe.
- There should be enough space for maintenance during installation.
- To ensure measurement accuracy, at least 10 times the length of straight pipe should be reserved in front of the meter and at least 5 times the length of straight pipe should be reserved after the meter, as shown in the figure below.
5.2. Zigbee Network Pairing
This device requires a Tuya Zigbee Hub to function. The hub is not included with the water meter.
To pair the water meter with your Zigbee gateway:
- First, ensure your Tuya Zigbee gateway is successfully connected to your Wi-Fi network and added to the Tuya App.
- Open the water meter's cover to access the control button.
- Short press the button repeatedly until the LCD display shows the date page (e.g., '23-05-30').
- Once on the date page, long press the button until 'ConF1 9' appears on the display. This indicates the configuration menu.
- Long press the button again until 'AE253 00' appears. This signifies that the water meter is actively trying to pair with the Zigbee gateway.
- Follow the instructions in your Tuya App to add a new Zigbee device. The meter should be discovered and paired.
6. Operation
6.1. LCD Display Navigation
The water meter's LCD display provides various data points. Short press the control button to cycle through the main menu items:
The display shows various icons and data. Here's a guide to the LCD icons:
| LCD Icon | Meaning |
|---|---|
| Normal water flow | |
| Valve open | |
| Pipe burst | |
| Reverse water flow | |
| Leakage | |
| Reserved position | |
| Alarm warning | |
| TEST | Test Mode |
| Balance checking | |
| m³/h | Cubic meter per hour |
| Cumulative working hours | |
| °C | Water temperature |
| Low battery | |
| Charging (prepaid mode) | |
| Valve close | |
| Full screen |
6.2. Tuya App Control
Once paired with the Tuya Zigbee Hub, you can manage and monitor your water meter using the Tuya App:
- Remote Valve Control: Open or close the water meter's valve from anywhere using the app.
- Water Consumption Monitoring: View total water consumption, instantaneous flow rate, and pipe temperature.
- Historical Data: Access hourly water consumption data for the last 7 days and daily data for the last year.
- Alarm Notifications: Receive push notifications for abnormal conditions detected by the water meter.
6.3. Home Assistant Integration
The water meter can be integrated into Home Assistant via ZHA (Zigbee Home Assistant). This functionality requires an additional 'Add-on' to work. Please contact Zemismart support for more information on obtaining and configuring this add-on.
7. Maintenance
- Cleaning: Wipe the exterior of the water meter with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Battery: The device is powered by a DC3.6V Lithium Battery. Monitor the low battery indicator on the LCD display or in the app. Replace the battery as needed, following local regulations for battery disposal.
- Environmental Protection: The IP68 rating ensures protection against dust and water immersion. However, avoid unnecessary exposure to harsh conditions.
- Firmware Updates: Check the Tuya App periodically for any available firmware updates to ensure optimal performance and security.
8. Troubleshooting
- Device not pairing with Zigbee Hub:
- Ensure the Zigbee Hub is powered on and connected to your network.
- Make sure the water meter is in pairing mode ('AE253 00' displayed).
- Bring the water meter closer to the Zigbee Hub during the pairing process.
- Check for any obstructions or interference that might affect the Zigbee signal. - No data uploaded to Tuya App:
- Verify that the water meter is successfully paired with the Zigbee Hub.
- Check the automatic data upload frequency setting in the Tuya App (default is every 12 hours). Adjust if real-time data is expected more frequently.
- Ensure the Zigbee Hub has a stable internet connection. - Valve not responding to commands:
- Check the battery level of the water meter.
- Ensure the device is connected to the Zigbee network.
- Try controlling the valve locally using the meter's button to rule out app-related issues. - Inaccurate water flow readings:
- Verify that the water meter is installed correctly, with the arrow matching the water flow direction.
- Ensure sufficient straight pipe length before and after the meter as per installation guidelines. - LCD display is blank or dim:
- Check the battery level. Replace if low.
9. User Tips
- Data Upload Frequency: By default, the water meter uploads data to the Tuya App every 12 hours. You can adjust this frequency in the app to 1, 2, 4, 6, 8, or 24 hours after connecting to the Tuya gateway.
- Home Assistant Integration: For Home Assistant integration via ZHA, an additional 'Add-on' is required. Contact Zemismart support for details on how to obtain and set up this add-on.
- Power Source: The water meter operates on a DC3.6V Lithium Battery and does not require a direct electrical outlet connection for its operation. Only the Zigbee hub needs to be connected to power.
- Application: This water meter is suitable for various applications including water metering and billing management in farmhouses, shopping malls, and rental houses. It can also be used for controlling irrigation and domestic water valves.
10. Warranty and Support
For warranty information, technical support, or any inquiries regarding your Zemismart Smart Zigbee Ultrasonic Water Meter, please contact Zemismart customer service. Refer to your purchase documentation for specific warranty terms and contact details.
