Cordless Endodontic Rotary Motor with Built-in Apex Locator – 1:1 Contra-Angle, 100–1000 rpm

1. Power On / Off

• To Turn ON:
  Press and hold the Main Button for more than 0.5 seconds .
• To Turn OFF:
  Hold down the Setting Button , then press the Main Button .

💡 The device automatically powers off after a period of inactivity (configurable timer: 3–15 min).

2. Select Operating Mode

A. Choose Program (M0–M9)

• Use “+” or “–” buttons in standby mode to cycle through programs:
  • M0: Apex Locator Only Mode (no motor function; for canal measurement).
  • M1–M9: Endo Motor Modes (with apex locator if measuring wire is connected).

⚠️ To disable apex locator during motor use: Do NOT insert the measuring wire into the USB port.

B. Select Operation Mode

Press “+” or “–” in standby mode to choose from four operation modes:

• CW (Clockwise): Continuous rotation in one direction.
• CCW (Counter-Clockwise): Continuous reverse rotation.
• REC (Reciprocation): Alternating forward/backward motion at set angles.
• ATC (Adaptive Torque Control): Automatically switches between CW and reciprocation based on resistance.

3. Set Key Parameters

A. Speed (RPM)

Example: S3 ≈ medium speed; refer to file manufacturer’s guidelines.

B. Torque (Ncm)

✅ Set torque according to file type and canal complexity. Lower torque reduces risk of fracture.

C. Rotation Angles (for REC & ATC Modes)

• Forward Angle (°): 30° to 360° (clockwise motion)
• Reverse Angle (°): 30° to 360° (counter-clockwise motion)

❗ Rule: Difference between Forward and Reverse angle must be >120°
Example: Forward = 300°, Reverse = 60° → Difference = 240° ✅

D. File Library Selection

• Access built-in file system presets (e.g., ProTaper, WaveOne, etc.).
• Press “+” / “–” to browse and select.
• Selecting a preset will auto-fill all associated parameters.

💡 If you modify any parameter, the program becomes Custom .

4. Install File Securely

1. Ensure file is securely locked in contra-angle.
   • Align locating pins with positioning slots.
   • Push horizontally until you hear a “click.”
2. Insert file into contra-angle head:
   • Hold down the push button on the contra-angle.
   • Insert the file and turn back-and-forth until it locks into place.
   • Release the button to secure the file.

⚠️ Always stop motor operation before installing or removing files.

5. Start Motor Operation

1. Position file in canal.
2. Press the Main Button to start.
3. Monitor display for real-time torque, speed, and direction.

During Operation:

• CW/CCW/ATC Modes: Motor reverses when set torque is reached.
• REC Mode: Reciprocates at defined angles; reverses if torque > 3.0 Ncm.
• ATC Mode: Rotates forward until high resistance → switches to reciprocation → resumes forward once resistance drops.

❗ Overload Protection: If overload occurs, screen displays warning. Press Main Button to reset.

🔋 Low Battery Warning: Device stops automatically. Charge before reuse.

6. Apex Locator Function (Canal Measurement)

Setup Steps:

1. Connect measuring wire to USB port on handpiece.
2. Attach:
   • White connector → Lip hook (place on patient’s lip)
   • Black connector → File clip → attach to file shank
3. Confirm stable connection:
   • Display should show steady “–2” during test.
   • If unstable, check connections or replace components.

Measurement:

• Select Program M0 .
• Press Main Button to start measurement.
• Advance file slowly into canal.
• Buzzer frequency increases as file approaches apex.
• Final position appears on screen (relative distance to apical foramen).

📌 Note: Does not show exact mm—use with radiograph correlation.

7. Safety Reminders

• ✔️ Always wear gloves and use rubber dam.
• ✔️ Use original contra-angle and ISO-standard files only.
• ✔️ Confirm file is fully seated and locked before starting.
• ✔️ Never disassemble contra-angle while motor is running.
• ✔️ Avoid electromagnetic interference sources: mobile phones, radios, fluorescent lights.

❗ Reposition or shield device if interference occurs.

8. Troubleshooting Common Issues

9. Maintenance Tips

• Clean and disinfect contra-angle after each use.
• Sterilize using high-pressure steam autoclave (134°C, 2.0–2.3 bar).
• Do not autoclave motor handpiece; wipe clean with neutral disinfectant.