Yieryi WiFi Online PH EC TEMP Meter User Manual

1. Introduction

The Yieryi WiFi Online PH EC TEMP Meter (Model: PH-W2823EU/PH-W2823US) is an advanced 3-in-1 water quality controller designed for precise monitoring and control of pH, Electrical Conductivity (EC), and Temperature. This upgraded version features smart range control and real-time data transmission via the Tuya Smart APP, making it ideal for applications such as swimming pools, hydroponics, aquariums, and various water quality measurements. It allows for intelligent control of dosage pumps or other instruments based on user-defined pH and EC ranges.

2. Key Features

• Upgraded Smart 3-in-1 Functionality: Measures pH, EC, and Temperature simultaneously.
• PH & EC Range Control: Set a specific pH and EC control range. The device will activate or deactivate connected equipment (e.g., dosage pumps) when the measured value falls within or exceeds this range.
• Tuya Smart APP Integration: Connects via WiFi for real-time data monitoring, historical data viewing, and abnormal high/low data alarms on your mobile phone.
• Data Export: Export data to Excel/email for analysis and sharing.
• Multi-Device Control: One mobile phone can control multiple devices, and multiple devices can be connected simultaneously.
• Easy Operation: Simple immersion of electrodes provides instant readings.
• Backlight Control: Mobile APP allows one-touch backlight control for easy reading in various lighting conditions.
• APP Alarm Settings: Set high or low alarm values for pH and EC. The device will trigger an alarm if the set value is exceeded.
• Smart Scene Creation: Create smart scenes in the Tuya APP to automate actions based on water quality parameters.
• Product Use Safety: Integrated fuse protection for the entire circuit against abnormal current.
• High Precision Replaceable Electrodes: Fast measurement, quick response, stable data, corrosion resistance, and long service life.
• Wide Application: Suitable for swimming pools, spas, koi ponds, hydroponics, aquariums, seawater, and saltwater fish tanks.

3. Package Contents

Please check the package for the following items:

• 1 x 3-in-1 Water Tester (Controller Unit)
• 1 x PH Electrode
• 1 x EC Electrode
• 1 x Temperature Electrode
• 2 x Suction Cups
• 4 x Screws
• 4 x Anchor Bolts
• 1 x User's Manual (English)

4. Setup Guide

1. Unpack: Carefully remove all components from the packaging.
2. Connect Electrodes: Connect the PH electrode, EC electrode, and Temperature electrode to their corresponding sockets on the controller unit. Ensure a secure connection.
3. Mounting (Optional): Use the provided suction cups, screws, and anchor bolts to mount the controller unit and electrodes in a suitable location, such as on the wall or inside an aquarium. The rear hanging hole allows for wall mounting.
4. Power Connection: Plug the controller's power cord into a suitable power outlet (AC230V for EU, AC120V for US).
5. External Device Connection (Optional): If using the range control feature, plug your 110V/220V equipment (e.g., air pump, CO2 regulator, solenoid valve, dosage pump) into the appropriate relay output power sockets on the double controller.
6. Initial Cleaning: Before first use, wash the electrodes in distilled water and gently dry them with filter paper.

5. Operation

5.1. Basic Measurement

1. Immerse the electrodes (pH, EC, Temperature) into the liquid you wish to test.
2. Stir gently and wait a few seconds for the readings on the controller's display to stabilize.
3. Read the pH, EC, and Temperature values directly from the display.

5.2. Tuya Smart APP Connection & Monitoring

1. Download App: Search for "Tuya Smart" or "Smart Life" in your mobile APP store and download it.
2. Register/Login: Create an account or log in to the app.
3. Add Device: Follow the in-app instructions to add your Yieryi WiFi Online PH EC TEMP Meter. Ensure your device is powered on and in pairing mode (refer to the app for specific pairing instructions, usually involving a button press on the device).
4. Real-time Monitoring: Once connected, you can view current data, historical data (daily, weekly, monthly), and receive alerts directly on your mobile phone.

5.3. APP Alarm Settings

You can set high or low alarm values for pH and EC. If the measured value exceeds or falls below the set range, the device will trigger an alarm.

1. Open the Tuya Smart APP and navigate to the device's interface.
2. Locate the alarm settings section.
3. Set your desired high and low alarm values for pH and EC.
4. Choose your preferred alarm method (e.g., notification).

5.4. PH & EC Range Control (Advanced Feature)

This upgraded feature allows you to set a control range for pH and EC. When the measured value falls within or exceeds this range, the connected power sockets will turn on or off, controlling external equipment.

Specific Operation:

1. Access Settings: Long press the SET1 key for 1 second and release. The bottom of the display will show "C-1".
2. Navigate Control Modes: Briefly press SET1 repeatedly to cycle through the following modes:
   • C-1: Alarm out of the range of high and low ends of PH adjustment.
   • C-2: PH adjustment of high and low end of the range of alarms (power activated when pH value is between the set low and high values).
   • C-3: Alarm out of the high and low end of the temperature control range.
   • C-4: Alarm within the high and low end of the temperature adjustment range (power activated when temperature value is between the set low and high values).
3. EC/TDS/SALT/ORP Control: For EC (TDS/SALT/ORP) control, press the SET key (not SET1) for 1 second and release. "C-1" will appear at the bottom of the display. Briefly press SET to switch between:
   • C-1: Regulating EC (TDS/SALT/ORP) high and low end out of the range of the alarm.
   • C-2: Adjusting the EC (TDS/SALT/ORP) alarm within the high and low end of the range (power activated when EC value is between the set low and high values).
4. Confirm Setting: After selecting the desired mode, wait for 5 seconds. The code will disappear, and the setting will be saved.

Note: Be careful not to set high and low alarms simultaneously when using the product, as this may lead to incorrect power activation.

6. Calibration

For accurate readings, regular calibration of the electrodes is essential, especially if the device has not been used for a long time, is used continuously, or requires high precision.

6.1. pH Calibration

The video demonstrates pH calibration using buffer solutions. Typically, pH meters require 2 or 3 point calibration (e.g., pH 4.00, pH 6.86, pH 9.18). Refer to the detailed instructions in the included English User Manual for the precise calibration procedure for your device.

6.2. EC Calibration

EC electrodes also require calibration using standard conductivity solutions. Consult the English User Manual for specific EC calibration steps.

7. Maintenance

• Electrode Cleaning: Always rinse electrodes with distilled water before and after each use.
• Electrode Storage: Store pH electrodes in a suitable storage solution (or pH 4.0 buffer solution if storage solution is unavailable) to prevent drying out. EC and Temperature electrodes can typically be stored dry after rinsing.
• Fuse Replacement: The control socket includes a fuse for protection. If the device stops functioning due to an electrical surge, check and replace the fuse if necessary. Ensure the replacement fuse matches the original specifications.
• General Care: Keep the controller unit clean and dry. Avoid exposing it to extreme temperatures or direct sunlight for prolonged periods.

8. Troubleshooting

Q: I cannot see the PH value in the application.

A: Ensure the PH electrode is correctly connected to the controller and fully immersed in the liquid. Also, verify that the device is properly connected to the Tuya Smart APP and that the app has refreshed the data. If the issue persists, try restarting both the device and the app.

Q: The device is not turning on/off external equipment based on the set range.

A: Double-check your range control settings (C-1/C-2/C-3/C-4 modes) on the device. Ensure the external equipment is correctly plugged into the double controller's output sockets and that the power requirements of the external device do not exceed the controller's capacity. Verify that the fuse is intact.

Q: What is the maximum power of devices to connect to the outlets and the fuse capacity?

A: The specifications for maximum power and fuse capacity are crucial for safe operation. Please refer to the detailed specifications section in this manual or the physical label on the device for exact values. Exceeding these limits can damage the device and connected equipment.

Q: The readings are inaccurate.

A: The electrodes may require calibration. Follow the calibration procedures outlined in the user manual. Ensure electrodes are clean and not damaged. Replace electrodes if they are old or show signs of wear.

9. Specifications

10. User Tips

• For optimal performance and longevity, ensure electrodes are always kept moist when not in use, preferably in a storage solution.
• When setting alarm values, avoid setting high and low alarms simultaneously for the same parameter if they conflict, as this can lead to unintended control actions.
• Regularly check the fuse in the control socket, especially if connected external devices are not responding.
• If you encounter any difficulties with specific operations or app functionality, refer to the detailed English User Manual or contact customer service for assistance.

11. Warranty and Support

For any product-related inquiries, technical support, or warranty claims, please contact the seller or manufacturer directly. Refer to your purchase documentation for specific contact information.