Introduction
The iSonic-D2840 Ultrasonic Cleaner is designed for thorough cleaning of personal items such as jewelry, watches, and eyeglasses. It utilizes ultrasonic technology to reach deep into crevices and small holes, restoring sparkle and clarity to your items. This manual provides essential information for the safe and effective use of your ultrasonic cleaner.
Key features include a digital timer with multiple settings, an On/Off switch, a pop-open lid, and a polished stainless steel tank for easy maintenance. The unit is designed with a wider and deeper tank to accommodate larger items like fashion sunglasses.

Image: The iSonic-D2840 Ultrasonic Cleaner shown with a bottle of cleaning solution, illustrating its compact design and ready-to-use state.
Package Contents
Upon opening the package, ensure all the following items are present:
- iSonic-D2840 Ultrasonic Cleaner Unit
- Plastic Basket
- Watch Stand
- Sample size of iSonic Jewelry / Eyewear Cleaning Solution Concentrate (CSGJ01)

Image: The iSonic-D2840 Ultrasonic Cleaner displayed with its plastic basket, watch stand, and a sample cleaning solution, highlighting the complete set of accessories.
Setup
- Placement: Place the ultrasonic cleaner on a stable, flat, and dry surface, away from heat sources and direct sunlight. Ensure adequate ventilation around the unit.
- Power Connection: Plug the power cord into a standard 110V electrical outlet.
- Fill Tank: Open the lid and fill the stainless steel tank with water. For optimal cleaning, use the iSonic Ultrasonic Cleaning Solution Concentrate CSGJ01 as directed on its packaging. Do not exceed the maximum fill line indicated inside the tank.
- Insert Basket/Stand: If cleaning small items or watches, place the plastic basket or watch stand into the tank.
Video: This video demonstrates the process of setting up the iSonic ultrasonic cleaner, including adding cleaning solution and placing items for cleaning.
Operating Instructions
- Prepare Items: Place the items to be cleaned into the plastic basket or secure them on the watch stand. Ensure items are fully submerged in the cleaning solution.
- Close Lid: Close the pop-open lid securely.
- Select Timer: Use the digital timer to select the desired cleaning cycle. Available settings are 90, 180, 280, 380, and 480 seconds.
- Start Cleaning: Press the On/Off switch to start the cleaning process. A blue LED light will indicate operation. The unit will automatically shut off once the selected cycle is complete.
- Retrieve Items: After the cycle finishes, open the lid and carefully remove the basket or watch stand. Rinse the cleaned items under running water and dry them with a soft cloth.

Image: The iSonic-D2840 Ultrasonic Cleaner shown with various items like jewelry and eyeglasses placed inside the basket for cleaning, demonstrating its operational use.

Image: A collage of items including rings, eyeglasses, sunglasses, a bracelet, and a watch, illustrating the variety of personal articles that can be cleaned with the iSonic-D2840.
Maintenance
- Emptying the Tank: After each use, or when the cleaning solution becomes visibly dirty, unplug the unit and carefully empty the tank.
- Cleaning the Tank: Wipe the polished stainless steel tank with a soft, damp cloth. Do not use abrasive cleaners or scrubbers that could scratch the surface.
- Exterior Cleaning: Clean the exterior of the unit with a soft, dry cloth. Avoid getting water into the control panel or electrical components.
- Storage: Store the unit in a cool, dry place when not in use.
Troubleshooting
If you encounter issues with your iSonic-D2840 Ultrasonic Cleaner, please refer to the following common solutions:
- Unit Does Not Power On:
- Ensure the power cord is securely plugged into a functional 110V outlet.
- Check if the outlet is receiving power by testing it with another appliance.
- Lid Does Not Open:
- Ensure the unit is unplugged before attempting to manually open the lid if the pop-open mechanism fails. Avoid forcing the lid.
- Poor Cleaning Results:
- Ensure the tank is filled to the appropriate level and that items are fully submerged.
- Verify that the correct amount of iSonic cleaning solution concentrate is used.
- Increase the cleaning cycle duration.
- For heavily soiled items, pre-soaking or gentle brushing may be necessary.
If problems persist, contact iSonic customer support for further assistance.
Specifications
| Feature | Specification |
|---|---|
| Model Number | D2840 |
| Tank Capacity | 1.6 Pt / 0.75 L |
| Tank Size (Oval) | 6.5" x 3.9" x 2.2" (16.6 x 10.0 x 5.5 cm) |
| Unit Size | 8.7" x 6.0" x 5.7" (22.2 x 15.3 x 14.5 cm) |
| Product Dimensions | 8 x 5 x 6 inches |
| Item Weight | 2.86 pounds |
| Power | 35 W, 110 V |
| Digital Timer Settings | 90, 180, 280, 380, 480 seconds |
| Manufacturer | iSonic |
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your product or contact iSonic directly. Please note that purchasing from unauthorized dealers may void the product warranty.







