BOURNS H-90 Potentiometer Adjustment Tool User Manual

1. Introduction

This manual provides essential instructions for the proper use and maintenance of the BOURNS H-90 Potentiometer Adjustment Tool. Designed for precision adjustments, this tool is compatible with BOURNS Trimmer Models 3224 and 3214. Please read this manual thoroughly before operating the tool to ensure safe and effective use.

Figure 1: BOURNS H-90 Potentiometer Adjustment Tool. This image displays the blue-colored adjustment tool, featuring a Phillips head suitable for precision trimming potentiometers.

2. Safety Information

Always observe basic safety precautions when using any hand tool. This tool is designed for specific electronic adjustment tasks. Misuse can lead to damage to the tool or the component being adjusted.

• Ensure the tool is clean and free from debris before use.
• Do not apply excessive force, as this can strip the potentiometer or damage the tool.
• Store the tool in a dry, safe place away from children.
• This tool is not insulated for high voltage applications. Do not use on live circuits unless specifically designed and rated for such use.

3. Package Contents

The BOURNS H-90 Potentiometer Adjustment Tool package typically includes:

• 1 x BOURNS H-90 Adjustment Tool

Note: Contents may vary slightly depending on the specific product offering or region.

4. Setup

The BOURNS H-90 is a ready-to-use hand tool that requires no assembly. Before use, ensure the tip of the tool is clean and free from any foreign material that could interfere with the adjustment mechanism of the potentiometer.

1. Inspect the Tool: Visually check the tool for any signs of damage or wear.
2. Identify Potentiometer Type: Confirm that the potentiometer you intend to adjust is compatible with a Phillips head adjustment tool, specifically BOURNS Trimmer Models 3224 or 3214.

5. Operating Instructions

Follow these steps to accurately adjust a compatible potentiometer:

1. Power Off: For safety, ensure the electronic device containing the potentiometer is powered off and disconnected from any power source before making adjustments.
2. Position the Tool: Carefully insert the Phillips head tip of the H-90 tool into the adjustment slot of the potentiometer. Ensure a snug fit to prevent stripping.
3. Make Adjustments: Gently turn the tool clockwise or counter-clockwise to achieve the desired resistance or output. Make small, incremental turns and re-check the circuit's performance as needed.
4. Avoid Over-tightening: Do not force the adjustment past its natural stop points, as this can damage the potentiometer's internal mechanism.
5. Remove Tool: Once the adjustment is complete, carefully remove the tool from the potentiometer.

Figure 2: Close-up view of the BOURNS H-90 tool's Phillips head. This image highlights the precision tip designed for engaging with trimmer potentiometers.

6. Maintenance

Proper maintenance ensures the longevity and performance of your H-90 adjustment tool:

• Cleaning: After each use, wipe the tool with a clean, dry cloth to remove any dust or residue. Avoid using harsh chemicals that could degrade the material.
• Storage: Store the tool in a dry environment to prevent corrosion. Keep it in a tool organizer or pouch to protect the tip from damage.
• Inspection: Periodically inspect the Phillips head tip for wear or deformation. A worn tip can damage potentiometer slots.

7. Troubleshooting

If you encounter issues while using the H-90 tool, consider the following:

8. Specifications

9. Warranty and Support

For warranty information and technical support, please refer to the official BOURNS website or contact your authorized BOURNS distributor. Keep your purchase receipt as proof of purchase.

BOURNS Official Website: www.bourns.com