1. Introduction
Thank you for choosing the Preciva 938BD II Digital Soldering and Hot Air Rework Station. This device is designed for precise soldering and desoldering tasks, featuring both a soldering iron and a hot air gun. It is suitable for various electronic repair and assembly applications, including SMD components. Please read this manual thoroughly before operation to ensure safe and efficient use.
Image 1.1: The Preciva 938BD II 2-in-1 Soldering Station, illustrating its hot air rework and soldering iron functions with digital temperature displays.
2. Safety Instructions
Always observe the following safety precautions to prevent injury or damage to the device:
- High Temperatures: The soldering iron tip and hot air nozzle reach very high temperatures. Avoid direct contact with skin or flammable materials.
- Ventilation: Use the station in a well-ventilated area to avoid inhaling fumes produced during soldering.
- Power Supply: Ensure the power supply matches the specifications of the soldering station. Disconnect power when not in use or during maintenance.
- Grounding: The unit must be properly grounded to prevent electric shock.
- Children and Pets: Keep the device out of reach of children and pets.
- Flammable Materials: Do not operate near flammable liquids, gases, or materials.
- Damaged Components: Do not use the station if any part is damaged. Contact customer support for repairs.
3. Product Overview and Components
The Preciva 938BD II integrates a soldering iron and a hot air rework station into a single unit. Key components include:
- Main Control Unit with Digital Displays
- Soldering Iron with Stand and Cleaning Sponge
- Hot Air Gun with Nozzle Holder
- Power Cord
- Various Soldering Tips
- Hot Air Nozzles (3 different sizes)
- Solder Wire
- LED Magnifying Glass (as per user reviews, may be included)
Image 3.1: An LED 5x Magnifying Glass, useful for enlarging details and providing efficient light during intricate soldering tasks.
4. Setup
- Unpacking: Carefully remove all components from the packaging.
- Placement: Place the main control unit on a stable, heat-resistant surface. Ensure adequate space for ventilation around the unit.
- Connect Soldering Iron: Plug the soldering iron cable into the designated port on the main unit. Place the soldering iron in its stand.
- Connect Hot Air Gun: Plug the hot air gun cable into its designated port. Place the hot air gun in its holder.
- Install Nozzle: Select an appropriate hot air nozzle and securely attach it to the hot air gun.
- Prepare Sponge: Dampen the cleaning sponge with water and place it in the soldering iron stand.
- Power Connection: Connect the power cord to the main unit and then to a grounded power outlet.
5. Operating Instructions
5.1 General Operation
- Power On/Off: Use the main power switch on the front panel to turn the unit on or off.
- Temperature Adjustment: Use the respective rotary knobs for the soldering iron and hot air gun to set the desired temperature. The digital displays will show the set and current temperatures.
5.2 Soldering Iron Operation
- Turn on the unit and set the desired temperature for the soldering iron (typically 200-480°C).
- Allow the iron to heat up to the set temperature.
- Clean the tip on the damp sponge before and after use.
- Apply a small amount of solder to the tip (tinning) to improve heat transfer and prevent oxidation.
- Apply the heated tip to the component and pad to be soldered, then feed solder onto the joint.
5.3 Hot Air Rework Station Operation
- Turn on the unit and set the desired temperature for the hot air gun (typically 100-480°C).
- Adjust the airflow using the dedicated knob.
- Hold the hot air gun a safe distance from the component to be desoldered or heated.
- Move the hot air gun in a circular motion to ensure even heating.
- Once the solder melts, carefully remove the component using tweezers.
Image 5.1: The hot air rework station demonstrating its automatic mode for temperature control and standby mode for energy efficiency.
5.4 Automatic Mode and Standby Mode
The hot air gun features an automatic mode. When the hot air gun is placed back into its holder, it automatically enters standby mode, reducing the temperature and airflow to save energy and prolong the heating element's lifespan. Removing the gun from the holder reactivates it to the last set temperature.
5.5 Soldering Iron Sleep Mode
The soldering iron is equipped with a sleep mode function. After approximately ten minutes of inactivity, the soldering iron will automatically enter sleep mode, lowering its temperature to prevent tip oxidation and extend its service life. Moving the iron will reactivate it to the set temperature.
Image 5.2: The soldering iron display showing 'SLP' indicating it has entered sleep mode after a period of inactivity.
6. Maintenance
- Soldering Tip Care: Regularly clean the soldering tip with the damp sponge. Re-tin the tip frequently to prevent oxidation. Replace tips when they become excessively worn or corroded.
- Hot Air Nozzle Cleaning: Ensure hot air nozzles are free from debris. Clean them gently if necessary.
- Unit Cleaning: Wipe the main unit with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the unit in a dry, dust-free environment when not in use.
Image 6.1: An illustration of various soldering iron tip shapes and sizes, along with specifications for solder wire (50g weight, 227°C melting point, 0.8mm diameter, lead-free, anti-oxidation).
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on | No power supply; Power switch off; Blown fuse | Check power cord connection; Turn on power switch; Check and replace fuse if necessary |
| Soldering iron not heating | Temperature set too low; Heating element failure; Loose connection | Increase temperature setting; Contact support; Check iron connection to main unit |
| Hot air gun not blowing or heating | Airflow/temperature set too low; Heating element/fan failure; In standby mode | Adjust settings; Remove gun from holder to exit standby; Contact support |
| Poor solder joints | Incorrect temperature; Dirty/oxidized tip; Old solder | Adjust temperature; Clean and re-tin tip; Use fresh solder |
8. Specifications
- Model: PL20601
- Brand: Preciva
- Total Power: 740 Watts
- Soldering Iron Power: 60 Watts
- Soldering Iron Temperature Range: 200~480 °C (392~896 °F)
- Hot Air Rework Temperature Range: 100~480 °C (212~896 °F)
- Number of Channels: 1
- Dimensions (Package): 28.2 x 18.5 x 11.9 cm
- Weight (Package): 2.11 kg
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase or visit the official Preciva website. Keep your purchase receipt as proof of purchase for warranty claims.