1. Introduction
Thank you for choosing the SUNPOW OT-MD16 Professional Rechargeable Metal Detector. This device is designed for efficient and accurate metal detection across various terrains, including beaches, rivers, and outdoor environments. It features advanced detection capabilities, multiple search modes, and a durable, waterproof design to enhance your treasure hunting experience.
The OT-MD16 is equipped with a high-sensitivity search coil, an intuitive LCD display for metal identification, and a long-lasting rechargeable battery. Please read this manual thoroughly to understand the proper operation, maintenance, and safety precautions for your metal detector.
2. Package Contents
Upon unboxing, please ensure all the following items are present:
- SUNPOW OT-MD16 Metal Detector Unit
- 12-inch IP68 Waterproof Search Coil
- Adjustable Shaft
- Control Box with LCD Display
- Headphones
- Steel Shovel
- Backpack for Transport
- USB-C Charging Cable
- Universal Voltage Charger
- User Manual
Figure 1: Complete SUNPOW OT-MD16 Pro Kit Contents
3. Setup
3.1 Assembly
- Carefully unpack all components from the box.
- Connect the search coil to the lower stem of the adjustable shaft. Secure it firmly.
- Attach the control box assembly to the upper stem. Ensure the cable from the search coil is routed securely along the shaft and connected to the control box.
- Adjust the armrest and shaft length for comfortable use.
3.2 Adjusting the Detector
The metal detector features an adjustable shaft and armrest to accommodate users of different heights and preferences. To adjust:
- Shaft Length: Loosen the locking collar on the shaft, extend or retract the shaft to your desired length, and then tighten the collar to secure it. The shaft is adjustable from 25 to 50 inches.
- Armrest: The armrest strap can be adjusted to fit your forearm comfortably, providing stability during use.
Figure 2: Adjustable Features of the OT-MD16
3.3 Charging the Battery
The OT-MD16 is powered by an 1800mAh lithium battery, providing over 24 hours of continuous use on a full charge. It supports fast USB-C charging.
- Locate the USB-C charging port on the side of the control box.
- Connect the provided USB-C charging cable to the port and the other end to the universal voltage charger.
- Plug the charger into a power outlet. The battery indicator on the LCD display will show charging status.
- A full charge typically takes a few hours. Disconnect the charger once the battery is full to prolong battery life.
Figure 3: Battery and Charging Features
3.4 Connecting Headphones
The metal detector includes a set of headphones for clearer audio signals, especially in noisy environments. Plug the headphone jack into the designated port on the side of the control box.
4. Operating Instructions
4.1 Control Panel Overview
The control panel features an LCD display and several buttons for mode selection, sensitivity adjustment, volume control, and pinpointing.
Figure 4: Control Panel and Display
4.2 Power On/Off
To power on the device, press and hold the Power On/Off button (usually labeled with a power icon) on the control panel until the LCD screen illuminates. To power off, press and hold the same button until the screen turns off.
4.3 Detection Modes
The OT-MD16 offers 5 specialized search modes to optimize detection for different types of metals and environments. Use the 'MODE' button to cycle through these options:
- ALL METAL Mode: Detects all types of metal. This mode is ideal for general searching when you want to find any metallic object.
- DISC Mode (Discrimination): Eliminates unwanted metal targets one by one. This allows you to filter out common trash items like iron or foil.
- NOTCH Mode: Freely discriminates against specific categories of metals (e.g., foil, 5-cent coins, pull tabs, 1-cent coins). This provides more precise control over what the detector ignores.
- MEMORY Mode: Allows you to store and search for specific metal types, eliminating others.
- PP Mode (Pinpoint): Enables you to pinpoint the exact location of a detected target, reducing digging time.
Figure 5: Smart Detection Modes
4.4 Metal Identification (ID)
The LCD display provides instant identification of detected metals using a numerical ID (01-99) and corresponding icons. This helps you determine the probable type of metal before digging.
- 01-40: Typically indicates iron or small foil.
- 41-55: Often corresponds to 5-cent nickel jewelry.
- 56-65: May indicate pull tab jewelry.
- 66-75: Commonly associated with 1-cent/zinc jewelry.
- 76-85: Suggests 25-cent copper coins.
- 86-99: Often indicates 1-dollar/50-cent silver coins.
Figure 6: Intelligent Metal ID Display
4.5 Sensitivity and Volume Adjustment
The detector features 10-level sensitivity and volume controls. Use the '+' and '-' buttons to adjust these settings.
- Sensitivity: Adjust sensitivity to suit the environment. Lower sensitivity is recommended indoors or in areas with high electrical interference to prevent false signals. Higher sensitivity can be used in open, clear areas for deeper detection.
- Volume: Adjust the audio output level of the detector.
5. Maintenance
5.1 Cleaning
- The search coil is IP68 waterproof and can be rinsed with fresh water after use, especially in saltwater environments.
- Wipe the control box and shaft with a damp cloth. Avoid using abrasive cleaners or solvents.
- Ensure all components are dry before storage.
5.2 Storage
- Store the metal detector in a cool, dry place away from direct sunlight.
- For long-term storage, it is recommended to partially charge the battery (around 50%) and recharge it every few months to maintain battery health.
- The included backpack can be used for convenient storage and transport.
6. Troubleshooting
6.1 False Signals or Erratic Behavior
- High Sensitivity: If experiencing false signals, especially indoors or near electrical sources, reduce the sensitivity level.
- Environmental Interference: Metal objects in your immediate vicinity (e.g., metal furniture, rebar in concrete floors) can cause interference. Move to a clear area or adjust sensitivity.
- Ground Mineralization: In highly mineralized ground, the detector may give false signals. Adjusting the ground balance (if available, or using a lower sensitivity) can help.
6.2 No Power
- Ensure the battery is fully charged.
- Check the charging cable and adapter for any damage.
- Verify that the power button is pressed and held correctly.
6.3 No Audio from Headphones
- Check if the headphones are securely plugged into the jack.
- Adjust the volume level on the detector.
- Test the headphones with another device to ensure they are functional.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | SUNPOW |
| Model Number | OT-MD16-US |
| Color | Black&Blue |
| Material | ABS Plastic, Metal |
| Power Source | Battery Powered |
| Battery Type | 1 Lithium Polymer (included) |
| Battery Capacity | 1800mAh (≥24hrs use) |
| Search Coil Size | 12 Inches |
| Waterproof Rating | IP68 (Coil) |
| Detection Depth | Up to 10 inches (Pinpoint Precision) |
| Product Dimensions | 17"L x 11"W x 5.9"H |
| Adjustable Length | Yes (25"-50") |
| Item Weight | 5.7 Pounds |
8. Safety Information
Important: Do not use the metal detector near power lines, electrical equipment, or in locations prone to lightning storms. Always be aware of your surroundings and local regulations regarding metal detecting.
9. Warranty and Support
For warranty information or technical support, please contact SUNPOW customer service through the retailer where you purchased the product or visit the official SUNPOW website. Please have your model number (OT-MD16) and purchase details ready when contacting support.
