PH-803W 2-in-1 pH/ORP Controller User Manual

1. Introduction

The PH-803W is a digital WiFi monitoring acid-base and redox controller designed to simultaneously measure and display pH and ORP values. It features two BNC electrodes (pH and redox) and two output sockets, offering fast response and easy pH calibration. The detachable electrodes allow for convenient replacement without needing to purchase a new device. This controller enables precise, easy, and automatic monitoring and control of pH and ORP values, as well as other related equipment in liquid environments. It is suitable for various applications such as hydroponics, aquariums, and general water quality testing. The device is available in 110V and 220V versions and can be wall-mounted or hung in a solution container.

2. Package Contents

Please check the package contents carefully upon receipt:

• PH-803W Controller Unit
• PH Electrode (BNC connector)
• ORP Electrode (BNC connector)
• Power Socket Box (EU or US plug, depending on model)
• Mounting Bracket
• Screwdriver
• User Manual (PDF available: PH-803W User Manual PDF)

3. Technical Specifications

4. Setup and Initial Operation

4.1. Initial Connections

1. Connect the AC power supply to the PH-803W controller. Ensure the correct voltage (110V or 220V) is used for your region.
2. Connect the PH electrode and ORP electrode into their respective input terminal sockets on the controller.

4.2. Electrode Preparation

3. Remove the protective caps from both electrodes. Inspect them to ensure they are clean and intact. Note: Avoid touching the electrodes with your bare hands.
4. Clean the electrodes with distilled water or alcohol. Gently dry the plastic housing and shake off any small droplets from the electrodes.
5. Immerse the measuring electrodes into the solution to be tested. Ensure the electrodes are fully immersed but do not exceed their full length.
6. Gently shake the device to dislodge any small air bubbles that may be clinging to the electrodes.
7. Allow the electrodes to stabilize in the solution until a stable display number is read.
8. After use, switch off the power supply, clean the electrodes with clean water, and replace the protective caps.
9. For long-term use, ensure the device and electrodes are securely fixed in place.

4.3. Panel Functions Overview

• ESC/WIFI Button:
  • Long press: Enters WiFi network configuration mode.
  • Short press: Exits the current mode without saving modifications and returns to the main interface.
• ▲ (6.86 CAL) Button:
  • Long press: Enters 6.86 pH calibration mode.
  • Short press (during limit setting): Increases the reading by 1, or selects upper limit control.
• OK Button:
  • Short press: Confirms and saves settings.
• ◄ (SET) Button:
  • Long press: Enters the upper and lower limits settings interface.
  • Short press (during limit setting): Selects digits, symbols, and functions.
• ▼ (4.00 CAL) Button:
  • Long press: Enters 4.00 pH calibration mode.
  • Short press (during limit setting): Decreases the reading by 1, or selects lower limit control.
• ► (VIEW) Button:
  • Long press: Views the saved upper and lower limits settings and function settings.
  • Short press (during limit setting): Enters the upper and lower limit setting and cursor movement.

5. Calibration

It is crucial to follow a strict calibration sequence: first with pH 6.86 solution, then with pH 4.00 solution. Always clean the electrodes before each calibration.

5.1. pH Calibration

5.1.1. pH 6.86 Calibration

1. Connect the AC power supply.
2. Immerse the pH electrode in a pH 6.86 buffer solution. Gently shake it until the reading stabilizes.
3. Long press the ▲ (6.86 CAL) button until the "pH" indicator light flashes and "PH6.86" is displayed on the first line.
4. If calibration is not performed, short press the ESC/WIFI button to exit and return to measurement mode.
5. To complete calibration, short press the OK button when the second line reading is stable. The device will automatically return to measurement mode.

5.1.2. pH 4.00 Calibration

1. Connect the AC power supply.
2. Immerse the pH electrode in a pH 4.00 buffer solution. Gently shake it until the reading stabilizes.
3. Long press the ▼ (4.00 CAL) button until the "pH" indicator light flashes and "PH4.00" is displayed on the first line.
4. If calibration is not performed, short press the ESC/WIFI button to exit and return to measurement mode.
5. To complete calibration, short press the OK button when the second line reading is stable. The device will automatically return to measurement mode.

5.2. ORP Calibration

This meter is accurately pre-calibrated for the mV range at the factory. User calibration for ORP is generally not required.

6. Setting Upper and Lower Limits

This device allows for independent control of pH and ORP values by switching the power socket box on and off based on set limits.

1. Enter Setting Mode: Long press the ◄ (SET) button until the pH, mV, and WiFi indicators disappear from the LED display.
2. Modify Digits: Use the ▲ (6.86 CAL) or ▼ (4.00 CAL) buttons to modify the ten-digit of the pH value. After modification, short press the ► (VIEW) button, and the unit digit of the pH value will flash. Use ▲ (6.86 CAL) or ▼ (4.00 CAL) to modify the unit digit. Repeat for other digits as needed.
3. Select Control Function: After modifying the pH value, short press the ▲ (6.86 CAL) button to select between upper limit control, lower limit control, or blank (no control). Use ▲ (6.86 CAL) or ▼ (4.00 CAL) to cycle through these options.

• Upper Limit Control (▲): If the measured solution value is higher than the set value, the pH plug of the power socket box is energized, and connected equipment starts working. If lower, the plug is powered off, and equipment stops.
• Lower Limit Control (▼): If the measured solution value is lower than the set value, the pH plug of the power socket box is energized, and connected equipment starts working. If higher, the plug is powered off, and equipment stops.
• Blank (No Control): Turns off pH control.

4. Save Settings: Short press the OK button to confirm and save the settings. The interface will show the saved settings.
5. Exit Setting Mode: Short press the ESC/WIFI button to exit the upper and lower limits settings without saving and return to the main interface.

7. Networking Configuration and App Use

The PH-803W supports WiFi mobile connection, allowing you to monitor data in real-time from your smartphone.

7.1. App Download and Installation

Scan the QR code below to download the app for Android. The download password is 778856.

7.2. Networking Configuration Steps

1. Ensure your mobile phone and the PH-803W device are connected to the same WiFi network. The supporting app must be installed on your phone.
2. Register and log in to the app. (Refer to image p1 in the manual for login screen).
3. In the "My Devices" interface, click the "..." icon in the upper right corner, then select "Add Device". (Refer to image p2 in the manual).
4. Enter your WiFi network ID and password in the app, then click "Next". (Refer to image p3 in the manual).
5. Enter the interface for module type selection. Click "ESP". (Refer to image p4 in the manual).
6. Long press the ESC/WIFI button on the PH-803W controller until the WiFi signal icon starts flashing on the screen. (Refer to image p5 and p6 in the manual).
7. Once the app indicates "Steps have been completed" and reaches 100%, click "Next". (Refer to image p7 in the manual).
8. You can now check the device successfully connected to the Internet in the "My Devices" interface of the app. Click on the device to view pH and ORP readings and the on-off status of the power control box. (Refer to image p8 and p9 in the manual).
9. You can rename the device in the "Settings Device Information" interface. You can check readings of your bound device anywhere through the phone. (Refer to image p10 in the manual).
10. When the upper and lower limit signals are flashing, the switch is automatically turned ON and displayed as "ON" in the app. (Refer to image p11 in the manual).

Video: Overview of the PH-803W controller and its features.

8. Maintenance

• Environment: Ensure the instrument is located in a dry environment and that all connections between the instrument and electrodes are dry.
• Electromagnetic Interference: The product is sensitive to electromagnetic waves. Avoid operating high-power appliances near the instrument when it is in use.
• Electrode Signal Lines: Ensure electrode signal lines are not disturbed by external magnetic fields or tangled/overlapped with other appliance wires, as this can affect test results.
• Electrode Cleaning: If the water being tested is cloudy, the electrodes should be cleaned with alcohol approximately once every half month.
• Electrode Immersion: Do not immerse the electrodes in water for prolonged periods, as this will shorten their lifespan.
• Electrode Lifespan: The electrodes have a service life of approximately one year and should be replaced regularly for accurate readings.

9. Troubleshooting

• Network Setup Failure: If the initial WiFi network setup fails, check the status of your indoor network. Try changing the router or restarting it, then attempt the connection again.
• Inaccurate Readings: Ensure electrodes are clean and properly calibrated. Verify that the electrodes are fully immersed in the solution and free of air bubbles. Check for any electromagnetic interference from nearby appliances.
• Device Not Responding: Verify the power supply is correctly connected and the correct voltage is being used. Ensure all electrodes are securely plugged in.

10. User Tips

• Calibration Solutions: The PH-803W does not typically come with pH calibration solutions. These will need to be purchased separately to perform accurate pH calibration.
• WiFi Connection: Connecting the device to WiFi and the mobile app can sometimes be challenging. Carefully follow all steps in the "Networking Configuration and App Use" section, paying close attention to the timing of button presses and app prompts. Ensure your phone and the device are on the same 2.4GHz WiFi network (5GHz networks are not supported).

11. Warranty and Support

11.1. Warranty Statement

The PH-803W comes with a warranty service valid for one year (365 days) from the date of purchase. In case of product failure due to quality problems within this period, please contact your dealer with your purchase invoice or order voucher.

11.2. Warranty Exclusions

Warranty service may not be available, or repairs may be charged, in the following cases, even within the warranty period:

• Damage caused by failure to use, maintain, or store the product according to the instructions.
• Malfunction or damage caused by dismantling, repairing, or modifying the product without the Company's permission.
• Failure or damage to the apparatus caused by force majeure.
• Delivery of consumables and random wear and tear of accessories (these must be purchased separately).
• Exceeding the validity period of the warranty.

11.3. Important Notes for Support

Before contacting customer service or a technician, please ensure you have completed the following actions correctly:

• Verify that the rated voltage of the instrument matches your current regional mains voltage.
• Observe whether the pH electrode bulb and ORP metal needle are normal. Do not allow foreign objects to touch the metal and glass parts of the electrodes.

If all operations are correct and problems persist, please consult a qualified technician.