1. Introduction
The Jebao DP-4 is a programmable auto dosing pump designed for precise and consistent liquid dispensing in aquatic environments. This unit features four independent dosing heads, allowing users to maintain stable tank parameters by automating the addition of various solutions. The controller offers advanced programming capabilities for individual pumps, making it suitable for a wide range of dosing requirements.
Figure 1: Top view of the Jebao DP-4 Auto Dosing Pump, showing the display and control buttons.
2. Package Contents
Upon opening the package, ensure all components are present:
- Jebao DP-4 Auto Dosing Pump Unit
- Power Supply (110V to 240V 50/60Hz)
- Soft Tubing (4 tubes fixture)
- User Manual
Note: A 100ml graduated cylinder or measuring cup is required for calibration and is not included.
Figure 2: The Jebao DP-4 Dosing Pump, power adapter, and a diagram of the pump mechanism.
3. Setup Instructions
- Placement: Position the dosing pump in a dry, stable location near your aquarium or sump. Ensure adequate ventilation and avoid areas prone to splashes.
- Connect Tubing: Connect the provided soft tubing to each of the four dosing heads on the front of the unit. Ensure secure connections to prevent leaks. The other ends of the tubing should be placed into your solution containers and directed to your aquarium or sump.
- Connect Power: Plug the power supply into the dosing pump unit and then into a suitable electrical outlet (110V to 240V 50/60Hz). The unit's display should illuminate.
- Initial Calibration: Before programming, calibrate each pump for accurate dosing. This typically involves dispensing a known volume (e.g., 100ml) into a graduated cylinder and adjusting the pump's settings until the dispensed volume matches the target. Refer to the 'Operating Instructions' section for detailed calibration steps.
Figure 3: Front view of the Jebao DP-4 Auto Dosing Pump, highlighting the four dosing heads and indicator lights.
4. Operating Instructions
The DP-4 controller is designed for straightforward programming. Each of the four pumps can be programmed individually.
- Set Date and Time: Access the system settings to set the current date and time. Accurate timekeeping is crucial for precise dosing schedules.
- Select Pump: Use the navigation buttons on the controller to select the desired pump (P1, P2, P3, or P4) for programming.
- Set Dosing Volume: For each selected pump, specify the total volume of solution to be dispensed per day. The unit allows for volumes from 1ml to 9999ml.
- Set Dosing Frequency: Program how many times per day the solution should be dispensed. The pump can be set to dose up to 24 times daily.
- Set Dosing Intervals: Define the specific times or intervals at which the daily volume will be distributed. This allows for stable parameter maintenance throughout the day.
- Save Settings: After configuring each pump, ensure you save the settings to activate the dosing schedule.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Jebao DP-4 Dosing Pump.
- Tubing Inspection: Periodically inspect all tubing for kinks, blockages, or signs of wear. Replace tubing as necessary to prevent dosing inaccuracies or leaks.
- Pump Head Cleaning: If dosing solutions that may leave residue, periodically clean the pump heads according to manufacturer recommendations to ensure smooth operation.
- Power Connection: Ensure the power connection remains secure. A loose connection can lead to power interruptions and reset the unit's schedule.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not dispense liquid. | Incorrect programming, clogged tubing, air in line, or pump head malfunction. | Verify programming settings. Check tubing for blockages or air. Ensure solution containers are not empty. Manually prime the pump if necessary. |
| Pump loses time/schedule after power off. | Internal memory battery issue or poor battery contact. | Check the internal memory battery and its contacts. If accessible and comfortable, ensure contacts are not bent out of shape. Replacement of the battery may be required. |
| Liquid flows back down the tubing. | Pump head not sealing properly or tubing not securely connected. | Inspect pump heads for wear or damage. Ensure tubing is firmly seated in the pump heads and connections. |
| Inaccurate dosing volume. | Improper calibration or tubing issues. | Recalibrate the pump using a 100ml graduated cylinder. Ensure tubing length and diameter are consistent with calibration setup. |
7. Specifications
| Feature | Detail |
|---|---|
| Model | DP-4 |
| Channels | 4 Dosing Heads |
| Dosing Volume per Channel | 1 to 9999 ml per day |
| Dosing Frequency | Up to 24 times per day |
| Power Input | 110V to 240V, 50/60Hz |
| Maximum Flow Rate | 70 Liters Per Minute (Q max) |
| Product Dimensions (L x W x H) | 5.11" x 2.55" x 9.25" |
| Item Weight | 2 Pounds |
| Material | Metal |
| Color | Black |
8. Warranty and Support
The Jebao DP-4 Dosing Pump comes with a 6-month warranty that covers replacement of any parts that fail due to manufacturing errors. For technical support or warranty claims, please contact your retailer or the manufacturer directly. Keep your proof of purchase for warranty validation.
