Flame Sensor Replacement for Ray5 10W / 5W

The flame sensor is a critical safety component of the Ray5 laser engraver, designed to detect unexpected flames during operation and trigger protective measures. If the sensor becomes faulty or unresponsive, it may compromise the machine’s safety system.

This guide walks you through the process of replacing the flame sensor on the Ray5 10W / 5W. The procedure is similar for other models, though for the Ray5 40W, only the flame sensor requires replacement.

Tools Required

• M5 hex wrench
• M2 hex wrench
• M2.5 hex wrench
• Replacement flame sensor

Step-by-Step Instructions

1. Remove the Control Box

Use an M5 hex wrench to loosen the screws securing the control box.
Carefully remove the control box from the machine.

2. Open the Control Box

Use an M2 hex wrench to loosen the screws on the back panel.
Remove the panel to access the internal components.

3. Disconnect Internal Wiring

Locate the cables connected to the mainboard.
Gently disconnect or unscrew them as needed to access the sensor components.

4. Replace the Flame Sensor

Use an M2.5 hex wrench to loosen the screws securing the flame sensor (and motion sensor if applicable).

• Remove the faulty sensor
• Install the new flame sensor in the same position
• Secure it using the original screws
• Reconnect all previously removed cables

Note: For Ray5 40W models, only the flame sensor needs to be replaced.

5. Reassemble the Machine

• Close the control box and secure the back panel with the M2 hex wrench
• Reinstall the control box onto the machine
• Ensure all components are properly secured

Important Notes

• Handle internal components carefully to avoid damaging connectors or the mainboard
• Ensure all cables are correctly reconnected before powering on
• Do not overtighten screws to prevent damage to the sensor housing

Conclusion

Replacing the flame sensor is an essential maintenance task to ensure the continued safety of your Ray5 laser engraver. By following this guide, you can restore proper flame detection functionality and maintain safe operation during engraving tasks.

Regular inspection of safety components like the flame sensor is highly recommended to prevent potential hazards and ensure long-term reliability.