1. Introduction
This manual provides comprehensive instructions for the proper use, maintenance, and troubleshooting of the WEST TUNE 100-1000µL Micropipette. Designed for high-accuracy liquid handling in laboratory settings, this single-channel pipettor offers adjustable variable volume capabilities. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.
Figure 1: WEST TUNE 100-1000µL Micropipette
2. Features
- Volume range: 100-1000µL with an increment of 5µL.
- Clear digital display screen for convenient volume reading.
- Ergonomic and lightweight design to minimize repetitive stress.
- Calibrated to ISO 8655 standards for precision and accuracy.
- Each unit includes an individual test certificate.
- Compatible with most universal brand pipette tips.
3. Components and Package Contents
The WEST TUNE Micropipette is designed for ease of use and reliability. Familiarize yourself with its main components and the items included in the package.
3.1 Main Components
Figure 2: Micropipette Components
- Push Button: Used to aspirate and dispense liquid, and to eject the tip.
- Digital Display: Shows the set volume.
- Tip Ejector: Mechanism for safely discarding used tips.
- Tip Ejector Collar: Part of the tip ejection system.
3.2 Package Contents
Figure 3: Package Contents
- WEST TUNE 100-1000µL Micropipette
- User Manual (this document)
- Quality Control Certificate
- Accessory Tool for calibration/maintenance
- Pipette Stand
- Calibration Oil
- Initial set of Pipette Tips
4. Setup
- Unpack: Carefully remove all components from the packaging.
- Inspect: Check the micropipette for any visible damage.
- Familiarize: Review the components section to understand each part.
- Mount on Stand: Place the micropipette securely on the provided stand when not in use.
5. Operating Instructions
Follow these steps for accurate and safe liquid handling with your micropipette.
5.1 Setting the Volume
- Turn the adjustment knob (located at the top of the push button) to set the desired volume.
- Ensure the digital display clearly shows the target volume.
- For best accuracy, always approach the desired volume from a higher setting by turning the knob clockwise. If you overshoot, turn past the desired volume and then approach it again from a higher setting.
5.2 Aspiration and Dispensing
For a visual guide, please refer to the instructional video below.
Video 1: Step-by-Step Guide on How to Use a Single Channel Pipettor. This video demonstrates the process of setting volume, attaching tips, aspirating, and dispensing liquids.
Figure 4: Proper pipetting technique
- Attach Tip: Firmly attach a suitable pipette tip to the nozzle cone. Ensure a proper seal.
- Aspirate: Press the push button to the first stop. Immerse the tip into the liquid to the appropriate depth. Slowly release the push button to aspirate the liquid.
- Dispense: Place the tip against the inner wall of the receiving vessel. Press the push button to the first stop to dispense most of the liquid. Then, press to the second stop (blow-out) to expel any remaining liquid.
- Eject Tip: Press the tip ejector button to discard the used tip into a waste container.
6. Maintenance
Regular maintenance ensures the accuracy and longevity of your micropipette.
- Cleaning: Clean the exterior of the pipette with a mild detergent solution and a soft cloth. Do not immerse the entire pipette in liquid.
- Autoclaving: The lower part of the pipette (tip cone assembly) can typically be autoclaved. Refer to the specific instructions for your model regarding autoclaving temperatures and times.
- Lubrication: Periodically lubricate the piston with the provided calibration oil to maintain smooth operation and sealing.
- Calibration: Regular calibration checks are recommended to ensure continued accuracy, especially after extensive use or if accuracy is critical for your application.
- Storage: Store the pipette vertically on its stand when not in use to prevent contamination and damage.
7. Troubleshooting
Below are common issues and their potential solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inaccurate pipetting / Leaking | Loose or damaged tip; dirty or damaged piston/seal; improper pipetting technique. | Ensure tip is firmly attached; replace tip; clean/lubricate piston; replace seal; review operating instructions. |
| Stiff push button | Lack of lubrication; internal contamination. | Lubricate piston with calibration oil; disassemble and clean (if trained). |
| Tip not ejecting | Damaged tip ejector; incorrect tip size. | Check tip ejector mechanism; use recommended tip sizes. |
If problems persist after attempting these solutions, please contact customer support.
8. Specifications
Detailed technical specifications for the WEST TUNE 100-1000µL Micropipette.
Figure 5: Accuracy and Precision Specifications for WEST TUNE Pipettors
| Specification | Value |
|---|---|
| Volume Range | 100-1000µL |
| Increment | 5µL |
| Item Model Number | WESTUNE13 |
| Manufacturer | WEST TUNE |
| Parcel Dimensions | 27.51 x 8.71 x 4.19 cm |
| Item Weight | 159 g |
9. Warranty and Support
This WEST TUNE Micropipette comes with a standard manufacturer's warranty covering defects in materials and workmanship. For specific warranty details, please refer to the documentation included with your product or contact WEST TUNE customer service.
For technical support, spare parts, or calibration services, please contact your local distributor or visit the official WEST TUNE website. When contacting support, please have your model number (WESTUNE13) and purchase date available.