1. Introduction
Thank you for purchasing the Silverflo 928D-I Electric Soldering Iron. This device is designed for rework and soldering tasks on various components, including SMT and through-hole types such as SOP, DIP, and SOIC. It features digital temperature adjustment from 200-500°C, C/F temperature mode conversion, digital temperature calibration, and a convenient plug-in heating core.
2. Part List
Familiarize yourself with the components of your soldering iron:
- Soldering Iron Tip
- Steel Tube
- Fastener
- Decrease Button (Temperature)
- Temperature Display
- Increase Button (Temperature)
- Function Button (°C/°F Display Switch)
3. Specifications
| Feature | Specification |
|---|---|
| Model Number | 928D-I |
| Brand Name | Silverflo |
| Voltage | 110V and 220V |
| Input Voltage | 110V/220V |
| Frequency | 50Hz/60Hz |
| Rated Power | 20W (Maximum power 100W) |
| Output Temperature Range | 200-500°C |
| Temperature Stability | Stable (±5°C) |
| Smart Device | No |
| High-concerned chemical | None |
Note on Power: The soldering iron operates at a rated power of 20W, with a maximum power of 100W. It is a temperature-regulated and constant-temperature device. Once the set temperature is reached, the product automatically adjusts its power output, requiring only low power to compensate for temperature drops.
4. Setup
- Place the soldering iron securely into the iron holder.
- Connect the iron's power cord to an appropriate electrical outlet (110V or 220V depending on your model).
5. Operation
5.1 Power On/Off
To power on, press and hold the function button for approximately 2 seconds. The soldering iron will begin heating. To power off, press and hold the function button for approximately 2 seconds.
5.2 Initial Use and Tinning
CAUTION: Upon the first use of the soldering iron, set the temperature to 250°C (482°F). When the iron is just hot enough to melt solder, coat the soldering iron tip with a layer of solder (rosin core solder is recommended). Then, increase the temperature to your desired operating value.
5.3 Temperature Adjustment
Use the '+' and '-' buttons to adjust the desired temperature. The digital display will show the current temperature. The iron will stabilize at the set temperature before operation.
5.4 Temperature Unit Conversion (°C/°F)
To switch between Fahrenheit and Celsius display modes, short press the function button.
5.5 Digital Temperature Calibration
This function allows you to correct temperature discrepancies that may occur due to environmental changes or replacement of components. Follow these steps:
- Press and hold the function button for approximately 2 seconds to enter the calibration mode.
- Once the temperature rises to the set temperature, press and hold both the increase ('+') and decrease ('-') buttons for 2 seconds. The temperature display will blink.
- Use the increase ('+') or decrease ('-') button to input the measured temperature value.
- The system will automatically calibrate the temperature, save the data, and exit the setting interface if no further entries are detected for 6 seconds.
6. Maintenance & Precautions
6.1 Cleaning and Tinning the Soldering Tip
After each operation, use a dampened sponge or metal wool ball to clean the soldering iron tip. Always tin the tip with a new layer of solder to prevent oxidization.
6.2 Addressing Oxidized Tips
If a layer of oxidization forms on the soldering iron tip, it can create a false impression of low temperature. Do not blindly increase the temperature. Instead, use a metal wool ball to remove the oxidization:
- Set the temperature to 300°C (572°F).
- Once the temperature stabilizes, gently rub the soldering iron tip inside the metal wool ball.
- When the oxidization is partially removed, continue applying solder onto the tip while rubbing it until the soldering tip is completely coated with solder. If the tip is severely oxidized, replace it with a new one.
Important: Do not use metal files to remove oxidization from the soldering iron tip. If the tip deforms or rusts, replace it with a new tip.
6.3 Avoiding Excessive Force
Do not apply excessive force on the soldering tip when soldering. This can damage the iron tip and hinder heat transfer.
6.4 Idle Temperature Management
When placing the soldering iron back in the holder after high-temperature operation, adjust the temperature to 250°C (482°F) or below for idling. Leaving the tip at high temperatures for extended periods will accelerate the aging of the heating element and shorten its lifespan.
6.5 Heating Core Replacement
When replacing the heating element, ensure it is slotted correctly. The heating element can be installed using either side as the pins are arranged in no particular order.
7. Troubleshooting
7.1 Error Code: "H-E"
If the display shows "H-E", this indicates abnormal heating of the soldering iron. To resolve this, you may need to replace the heating element (which includes the heating element and sensor modules) or check the heating element's power circuitry for any issues.
8. User Tips
- Users report that the soldering iron heats up very quickly, making it efficient for various tasks.
- Some users have noted mechanical issues with the buttons over time. Handle buttons with care to prolong their lifespan.
9. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact your retailer. Keep your purchase receipt as proof of purchase.