1. Introduktion
The PUHUI T-937M Reflow Oven is an advanced, intelligent lead-free reflow soldering station designed for precise and efficient soldering of BGA, SMD, and SMT components on Printed Circuit Boards (PCBs). This drawer-type oven utilizes infrared and hot air mixed heating technology to ensure uniform temperature distribution, making it suitable for both single and double-sided PCB boards and various solder pastes, including lead-free formulations. It features PC connectivity for comprehensive wave data management and a user-friendly interface for optimal control.

2. Sikkerhedsinstruktioner
Please read and understand all safety instructions before operating the PUHUI T-937M Reflow Oven to prevent injury or damage to the equipment.
- Elektrisk sikkerhed: Ensure the oven is connected to a properly grounded power outlet with the correct voltage (AC220-230V/50-60Hz). Do not operate with damaged power cords or plugs.
- Varmefare: The oven operates at high temperatures (up to 350°C). Always allow the oven to cool down completely before touching internal components or the soldering area. Use heat-resistant gloves if handling hot items.
- Ventilation: The oven produces fumes during the soldering process. Always operate the oven in a well-ventilated area or connect the special exhaust port to an appropriate ventilation system to ensure a good operation environment.
- Brandfarlige materialer: Keep flammable materials away from the oven during operation.
- Børn og kæledyr: Keep children and pets away from the operating oven.
- Opretholdelse: Afbryd strømmen, før du udfører vedligeholdelse eller rengøring.
3. Produktet er slutview & Funktioner
The PUHUI T-937M is designed for precision and ease of use in reflow soldering applications. Its key features include:
- Lead-Free Compatibility: Optimized for soldering lead-free paste effectively.
- PC tilslutning: Easily connect to a PC for input, setting, transmission, adjustment, saving, and management of wave data.
- Intuitiv software: Control software features graphical display for intuitive wave visualization and includes 299 pre-loaded solder paste data sets.
- Præcis temperaturkontrol: Utilizes a stable, high-speed MCU and advanced intelligent temperature measurement technology for exact, stable, and even temperatures. Includes a compensation circuit for environmental stability.
- Ensartet opvarmning: Integrated hot air fan ensures even temperature distribution within the oven.
- Bredt temperaturområde: Operates from room temperature up to 350°C, suitable for various soldering requirements.
- Miljøbeskyttelse: Features a special exhaust system for effective fume management, creating a better working environment.
- Brugervenlig grænseflade: Equipped with a clear LCD display and an easy-to-navigate human-machine operation interface.
- Thermostatic Timer: Allows for precise control over soldering cycle times.


4. Specifikationer
| Parameter | Værdi |
|---|---|
| Modelnummer | PUHUI T-937M |
| Soldering Area | 350 mm x 400 mm |
| Overordnede mål (L×B×H) | 473 mm x 466 mm x 290 mm |
| Nettovægt | 20.7 kg |
| Bruttovægt (pakke) | 25.0 kg |
| Voltage/Frekvens | AC220-230V / 50-60Hz |
| Power Rating | 3300W |
| Cyklus tid | 2-16 min |
| Temperaturområde | Room Temp to 350°C |
| Varme Type | Infrared & Hot Air Mixed Heating |
| On-line drift | Ja |
| Kontroltilstand | Single machine with 8 temperature curves, Online self-set curve |
| Udstødningsrør | Eksisterer |
| Certificering | CE |

5. Opsætningsvejledning
Before operating the reflow oven, ensure proper setup and preparation of your PCBs.
5.1 Forberedelse af arbejdsplads
- Place the reflow oven on a stable, heat-resistant surface.
- Ensure adequate clearance around the oven for ventilation and heat dissipation.
- Connect the special exhaust port on the back of the oven to a suitable fume extraction system or ensure the workspace is well-ventilated.
- Tilslut strømkablet til en jordet stikkontakt.


5.2 PCB Preparation
For optimal soldering results, prepare your PCBs as follows:
- Anvendelse af loddepasta: Apply solder paste to the PCB pads using a precise printing station and a stainless steel scraper. Ensure even application and correct alignment.
- Komponentplacering: Place the surface mount components onto the solder paste using a pick-and-place machine or tweezers.
6. Betjeningsvejledning
Follow these steps to operate your PUHUI T-937M Reflow Oven:
- Tænd: Turn on the main power switch of the oven. The LCD display will illuminate.
- Tilslutning til pc (valgfrit): For advanced curve management, connect the oven to a PC using the appropriate cable. Install and launch the control software.
- Select/Set Temperature Curve:
- Indbygget kontrol: Use the F1, F2, F3 buttons on the oven's control panel to navigate the menu. Select a suitable pre-programmed temperature curve (the oven comes with 8 curves) or set a custom curve.
- PC Software Control: Use the PC software to input, edit, transmit, adjust, save, and manage temperature curve data. The software provides a graphical display for real-time monitoring. The oven has 299 built-in solder paste data sets to assist in curve selection.
- Load PCBs: Carefully place the prepared PCBs into the oven's drawer. Ensure they are properly seated and do not obstruct the drawer mechanism.
- Start Reflow Process: Close the drawer. Press the appropriate button (e.g., F1 for execution curve) on the control panel or initiate the process via the PC software. The oven will begin following the selected temperature curve.
- Overvågning: Monitor the reflow process via the LCD display or the PC software. The software allows for real-time dynamic display of the curve.
- Færdiggørelse: Once the reflow cycle is complete (typically 2-16 minutes), the oven will sound an alarm.
- Unload PCBs: Carefully open the drawer and remove the soldered PCBs. Allow them to cool before handling further.


7. Vedligeholdelse
Regular maintenance ensures the longevity and optimal performance of your reflow oven.
- Rensning: Regularly clean the interior of the oven, especially the drawer and heating elements, to remove solder paste residue and flux buildup. Use a soft, dry cloth. Ensure the oven is cool and unplugged before cleaning.
- Udstødningssystem: Periodically check and clean the exhaust pipe and fan to ensure proper airflow and fume extraction.
- Udvendig rengøring: Tør det udvendige af ovnen af med adamp klæde. Undgå at bruge slibende rengøringsmidler eller opløsningsmidler.
- Softwareopdateringer: Keep the PC control software updated to the latest version for improved features and performance.
- Inspektion: Undersøg regelmæssigt netledningen og stikket for tegn på skader.
8. Fejlfinding
Her er nogle almindelige problemer og deres potentielle løsninger:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Poor solder joints (e.g., cold joints, bridging) | Incorrect temperature curve, insufficient solder paste, improper component placement. | Adjust temperature curve settings. Ensure correct solder paste volume and accurate component placement. Refer to solder paste manufacturer's recommendations. |
| Ovnen varmer ikke | Power supply issue, heating element failure, control board issue. | Check power connection and fuse. If problem persists, contact technical support. |
| Temperature inconsistencies | Dirty heating elements, fan malfunction, environmental factors. | Clean heating elements. Ensure the internal fan is operating correctly. Verify the oven is not in a drafty area. |
| PC software not connecting | Incorrect cable, driver issues, software malfunction. | Ensure the correct USB/serial cable is used and drivers are installed. Restart software and PC. |
| Overdreven røg/dampe | Inadequate ventilation, incorrect solder paste. | Ensure exhaust system is properly connected and functioning. Use appropriate solder paste. |
9. Garanti og support
For warranty information, technical support, or service inquiries, please contact your original vendor or the manufacturer directly. Keep your purchase receipt as proof of purchase.











