1. Product Overview
The CERTEON QW-GZ Series Tube Roller Mixer is designed for gentle and continuous mixing of blood samples, viscous liquids, and laboratory suspensions. Its horizontal rolling motion ensures uniform mixing while preventing sedimentation and coagulation without damaging blood cells.
The unit is driven by a DC motor and features adjustable speed control from 20 to 110 rpm. Timer models (indicated by a 'T' suffix) are equipped with a digital display and allow time setting from 1 to 999 minutes. This device is suitable for medical laboratories, clinical diagnostics, research institutions, and industrial sample processing.
2. Safety Information and Warnings
WARNING: Risk of electric shock. Do not open the housing. Internal servicing must be carried out by qualified personnel only.
- Disconnect the device from the mains supply before maintenance.
- Do not operate the device with a damaged power cord or plug.
- Ensure the device is used only for laboratory mixing applications.
- Keep out of reach of children.
- Do not use the device in explosive, flammable, or highly corrosive environments.
- Do not immerse the device in water or other liquids.
Note: Proper disposal must comply with Directive 2012/19/EU on Waste Electrical and Electronic Equipment. Final warning language must comply with the official language requirements of the destination EU country.
3. Package Contents
Please check the package contents upon receipt. If any items are missing or damaged, contact your supplier immediately.
- 1 x Tube Roller Mixer (QW-GZ-5, QW-GZ-7, QW-GZ-5T, or QW-GZ-7T model)
- 1 x Power cord
- 1 x User manual
4. Specifications
| Parameter | Value |
|---|---|
| Power Supply | AC 100-240 V, 50-60 Hz |
| Rated Voltage | AC 100-240 V |
| Power Consumption | 15 W |
| Fuse Specification | 250 V / 3 A / Ф5×20 mm |
| Motor Type | DC motor |
| Speed Range | 20-110 rpm (adjustable) |
| Amplitude | 22 mm ±1 mm |
| Roller Length | 280 mm |
| Maximum Load | 4 kg |
| Dimensions (L×W×H) | 510 × 250 × 100 mm |
| Material | ABS housing |
Model Configurations:
- QW-GZ-5: 5 rollers, no timer, net weight 3.7 kg
- QW-GZ-7: 7 rollers, no timer, net weight 3.8 kg
- QW-GZ-5T: 5 rollers, timer 1-999 min with digital display, net weight 3.7 kg
- QW-GZ-7T: 7 rollers, timer 1-999 min with digital display, net weight 3.8 kg
5. Setup Instructions
- Preparation: Place the mixer on a stable and level laboratory bench.
- Power Switch: Ensure the power switch is in the OFF position.
- Power Connection: Connect the unit to a suitable AC outlet within the specified voltage range (AC 100-240 V).
- Loading Samples: Load sample tubes evenly across the rollers. Ensure the total weight of the samples does not exceed 4 kg to prevent imbalance and vibration.
6. Operation Instructions
- Power On: Switch on the power supply.
- Adjust Speed: Adjust the speed control to the desired value between 20 and 110 rpm.
- Set Timer (for 'T' models only): For models with a timer (QW-GZ-5T, QW-GZ-7T), set the required operating time between 1 and 999 minutes using the control panel.
- Start Operation: Press the 'Start' button (or equivalent control). The device will begin mixing.
- Automatic Stop (for 'T' models): For timer models, the device will stop automatically when the preset time is reached.
- Completion: After operation, switch off the device. If the unit will not be used for an extended period, disconnect the power supply.
7. Maintenance and Storage
Cleaning:
- Clean the housing and rollers with a soft cloth lightly moistened with mild detergent.
- Do not use abrasive or corrosive cleaning agents.
- Ensure the device is completely dry before storage or reuse.
Storage:
- Store the unit in a dry and well-ventilated environment.
- Keep away from direct sunlight.
- Recommended operating conditions are 5 to 40 degrees Celsius and relative humidity not exceeding 80 percent, non-condensing.
Fuse Replacement:
- If fuse replacement is required, use only the specified type: 250 V / 3 A / Ф5×20 mm.
8. Troubleshooting
This section provides general guidance for common issues. For persistent problems, contact customer support.
- Device does not power on: Check if the power cord is securely connected and the power switch is in the ON position. Verify the power outlet is functional. Check the fuse.
- Rollers not moving or moving erratically: Ensure the maximum load capacity of 4 kg is not exceeded. Distribute tubes evenly to prevent imbalance.
- Inaccurate speed/timer (for 'T' models): Ensure the settings are correctly entered on the digital display.
9. User Tips
- Always ensure tubes are securely capped to prevent spills during mixing.
- For optimal mixing, use tubes that fit snugly on the rollers without excessive movement.
- Regularly clean the rollers to prevent residue buildup, which can affect performance and hygiene.
- When mixing viscous liquids, start at a lower speed and gradually increase to the desired setting.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact your vendor. Keep your purchase receipt as proof of purchase.
A detailed user manual in PDF format is available for download. Reference: User manual (PDF)
11. Compliance Information
This document is provided for product instruction purposes only and does not constitute legal advice. The manufacturer and seller are responsible for ensuring compliance with applicable directives, including CE marking, EMC requirements, and the Low Voltage Directive where applicable.