ATTEN T990 Series Soldering Iron Tips User Manual

1. Introduction

The ATTEN T990 series soldering iron tips are high-quality replacement components designed for use with ATTEN ST-990 and ST-8602D welder stations. These tips feature an integrated heating core, ensuring efficient heat transfer and stable temperature control for various soldering applications. Available in multiple shapes, including B, C, D, I, and K types, they cater to a wide range of precision and general-purpose soldering tasks.

2. Setup

Proper installation of the soldering tip is crucial for optimal performance and safety. Follow these steps to install or replace a T990 series tip:

1. Power Off: Ensure your ATTEN ST-990 or ST-8602D welder station is powered off and unplugged from the main power supply. Allow the existing tip to cool completely if it was recently in use.
2. Remove Old Tip (if applicable): Carefully unscrew or pull out the old soldering tip from the soldering iron handle. Use heat-resistant gloves if the tip is still warm.
3. Insert New Tip: Align the new T990 series tip with the heating element inside the soldering iron handle. Gently push it in until it is fully seated. Ensure a snug fit to maximize heat transfer.
4. Secure Tip: If your soldering iron handle has a retaining screw or mechanism, secure the tip in place according to your station's instructions.
5. Initial Tinning: Before first use, or after prolonged storage, it is recommended to tin the tip. Power on the station, set it to a low-to-medium temperature (e.g., 250-300°C), and apply a small amount of solder to the tip's working surface as it heats up. This protects the tip from oxidation.

3. Operating

The ATTEN T990 series tips are designed for precise and efficient soldering. Here are general operating guidelines:

1. Temperature Setting: Adjust the temperature on your ST-990 or ST-8602D station according to the type of solder, components, and PCB being worked on. Refer to your solder's specifications for recommended temperatures.
2. Tip Cleaning: Regularly clean the tip during operation using a damp sponge or brass wool. This removes oxidized solder and flux residue, maintaining optimal heat transfer and preventing contamination.
3. Applying Solder: Touch the tip to both the component lead and the PCB pad simultaneously. Once both are heated, apply solder to the junction, not directly to the iron tip. Allow the solder to flow and form a shiny, concave fillet.
4. Avoid Excessive Pressure: Do not apply excessive pressure to the tip. The integrated heating core ensures efficient heat transfer with light contact.
5. Power Off When Not in Use: Always power off your soldering station when not in use to prolong tip life and ensure safety.

4. Maintenance

Proper maintenance extends the lifespan and performance of your ATTEN T990 soldering tips:

• Regular Cleaning: Clean the tip frequently with a damp cellulose sponge or brass wool to remove excess solder and flux. Avoid abrasive materials that can damage the tip plating.
• Tinning: Always keep the tip tinned with a thin layer of solder, especially before storing and after cleaning. This prevents oxidation and ensures good heat transfer.
• Storage: Store tips in a dry, non-corrosive environment. If storing for an extended period, ensure the tip is heavily tinned.
• Avoid High Temperatures: Using excessively high temperatures can accelerate tip oxidation and degradation. Use the lowest effective temperature for your soldering task.
• Inspect for Damage: Periodically inspect tips for pitting, excessive oxidation, or physical damage. Replace damaged tips to maintain soldering quality.

5. Troubleshooting

If you encounter issues with your soldering tip, consider the following common problems and solutions:

• Tip Not Heating:
  - Check if the soldering station is powered on and the temperature is set correctly.
  - Ensure the tip is properly seated in the handle and making good contact with the heating element.
  - Inspect the soldering iron handle cable for damage.
• Poor Solder Wetting/Oxidation:
  - The tip may be oxidized. Clean it thoroughly with brass wool and re-tin immediately.
  - Ensure you are using fresh, good-quality solder with adequate flux.
  - Avoid leaving the iron at high temperatures for extended periods without use.
• Solder Not Sticking to Tip:
  - This is often due to an oxidized tip. Follow the cleaning and re-tinning procedure.
  - Ensure the tip is adequately heated to the correct temperature for the solder being used.
• Tip Pitting or Erosion:
  - This can occur from using overly aggressive fluxes or operating at excessively high temperatures.
  - Ensure proper tip maintenance and use appropriate temperatures. If severe, the tip may need replacement.

6. Specifications

Available Tip Shapes and Diagrams:

7. User Tips

To get the most out of your ATTEN T990 soldering iron tips, consider these practical tips:

• Choose the Right Tip: Select the tip shape appropriate for your task. Fine-point tips (like 'I' or small 'B' types) are for precision work, while chisel or bevel tips (like 'K' or 'D' types) are better for larger components or drag soldering.
• Use Quality Solder and Flux: High-quality solder and flux significantly improve soldering results and help maintain tip health.
• Keep Tip Wet: Always ensure the tip is coated with a thin layer of solder when hot. This prevents oxidation and improves heat transfer to the joint.
• Avoid Dry Wiping: Do not wipe the hot tip dry on a cloth or paper towel, as this can remove the protective solder layer and accelerate oxidation. Use a damp sponge or brass wool.
• Lower Temperature for Idle: If you need to leave the iron on but are not actively soldering for a few minutes, lower the temperature to reduce oxidation.

8. Warranty and Support

ATTEN T990 series soldering iron tips are manufactured to high standards. For any questions regarding product performance, compatibility, or technical support, please contact the seller or ATTEN customer service. Keep your purchase records for warranty claims, if applicable.