UNI-T UT387 Series Multifunctional Wall Scanner and Laser Rangefinder User Manual

1. Introduction

The UNI-T UT387 series wall scanners are advanced, multifunctional devices designed for detecting various objects hidden behind walls. This series includes models UT387E, UT387LM, and UT387S, each offering a unique combination of features such as metal detection, AC voltage detection, wood detection, laser distance measurement, and wood moisture detection. These tools are ideal for professionals and DIY enthusiasts engaged in home renovation, construction, and general home improvement projects.

Figure 1: Overview of UNI-T UT387 Series Models

2. Safety Information

Please read and understand all safety warnings and instructions before using the device. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.

• Always ensure the device is in good working condition before use.
• Do not attempt to open or modify the device. Repairs should only be performed by qualified personnel.
• Keep the device away from water and extreme temperatures.
• When detecting live AC wires, exercise extreme caution. Always verify findings with other methods if possible.
• Avoid direct eye exposure to the laser beam.
• Keep the device out of reach of children.

3. Product Overview and Components

Familiarize yourself with the device's layout and controls.

Figure 2: UT387LM Component Diagram (similar for other models)

Key Components:

• Display Screen: Shows measurement results, mode, battery status, and other indicators.
• On/Measure Key: Powers on the device and initiates measurements.
• Function Menu Keys: Navigate through different modes and settings.
• Power Off Key: Turns off the device.
• Clear Key: Clears current readings or selections.
• Detect Foreign Body Key: Activates wall scanning mode.
• Detect Metal Keys: Specific mode for metal detection.
• Measure/Lock Moisture Data Key (UT387S only): For wood moisture measurement.
• Ranging Laser: Emits laser for distance measurement.
• Ranging Receiving Lens Hole: Receives reflected laser for distance calculation.
• Detection Area: The part of the device that senses objects in walls.
• Moisture Probe (UT387S only): Used for wood moisture detection.
• Type-C USB Port: For charging the internal lithium battery.

4. Setup and Charging

4.1 Battery Charging

The UT387 series devices are equipped with a 300mAh rechargeable lithium battery. Before first use, or when the low battery indicator appears on the display, charge the device using the provided Type-C USB cable.

1. Connect the Type-C USB cable to the device's charging port.
2. Connect the other end of the USB cable to a standard USB power adapter (not included) or a computer's USB port.
3. The display will show a charging indicator.
4. Once fully charged, the indicator will change, and you can disconnect the cable.

Figure 3: Device Charging via Type-C USB

5. Operating Instructions

5.1 Wall Scanning (UT387E, UT387LM, UT387S)

This mode allows detection of ferrous metals, non-ferrous metals, AC electric wires, and wood behind walls.

1. Press the 'Detect Foreign Body' key to enter wall scanning mode.
2. Place the device flat against the wall surface.
3. Slowly move the device horizontally across the surface.
4. The display will indicate the presence and type of detected material, along with its approximate depth.
5. An audible alarm will sound when an object is detected.

Figure 4: Wall Scanning Detection Depths

Figure 5: 4-in-1 Detection Capabilities

AC Electric Wire Detection:

The device can detect live AC electric wires up to 40mm deep.

Figure 6: AC Electric Wire Detection

Wood Detection:

The device can detect wood up to 38mm deep.

Figure 7: Wood Detection

5.2 Laser Ranging (UT387LM, UT387S)

These models feature a laser rangefinder for accurate distance measurements up to 40 meters.

Figure 8: Laser Ranging up to 40 Meters

Single Measurement:

Long press the On/Measure key to automatically enter laser single measurement. Short press the key to perform a single measurement, and the result will be displayed.

Figure 9: Single Laser Measurement

Continuous Measurement:

Press the On/Measure button to enter continuous measurement mode. Point the laser at the target, and the display will show maximum and minimum values as the device moves.

Figure 10: Continuous Laser Measurement

Area and Pythagorean Measurement:

Use the function menu key to select Area measurement, Single Pythagorean, or Double Pythagorean modes. Follow the on-screen instructions to take the necessary measurements.

Figure 11: Area and Pythagorean Measurement Modes

5.3 Wood Moisture Detection (UT387S only)

The UT387S model includes a wood moisture detection feature.

1. Ensure the device is powered on.
2. Remove the probe cover from the bottom of the device.
3. Gently press the moisture probes into the wood surface.
4. The display will show the wood moisture percentage.
5. Press the 'Measure/Lock Moisture Data' key to lock the reading.

Figure 12: Wood Moisture Measurement

5.4 Data Storage and Unit Conversion

The UT387LM and UT387S models can store up to 30 sets of measurement data for convenient record query.

• To access stored data, navigate through the menu using the 'MENU' keys.
• The device also supports multiple unit switching (m/ft/in) for laser measurements. Use the appropriate menu option to change units.

Figure 13: Data Storage Feature

5.5 Voice Broadcast

The UT387 series features a live voice broadcast function for measurement results, enhancing user experience and human-computer interaction.

6. Maintenance and Care

• Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for extended periods, ensure the battery is partially charged.
• Battery: Recharge the battery regularly to maintain its lifespan, even if the device is not in frequent use.
• Laser Lens: Keep the laser emitting and receiving lenses clean for accurate measurements.

7. Troubleshooting

• Device not turning on: Ensure the battery is charged. Connect to a Type-C USB charger and try again.
• Inaccurate wall scanning results: Ensure the device is held flat against the wall and moved slowly. Avoid scanning over highly reflective or uneven surfaces. Calibrate the device if available in the menu.
• Laser measurement errors: Ensure the laser lens is clean and unobstructed. Measure to a clear, non-reflective target. Environmental factors like strong light can affect accuracy.
• Wood moisture readings inconsistent (UT387S): Ensure probes are fully inserted into the wood. Test on a known dry piece of wood to verify functionality.
• No voice broadcast: Check the volume settings in the device's menu.

8. Specifications

Figure 14: Detailed Technical Specifications

9. User Tips

• For best wall scanning results, ensure the wall surface is dry and free from excessive dust or debris.
• When using the laser rangefinder, aim for a solid, non-transparent surface to get accurate reflections.
• Always perform a test scan on a known area before critical work to understand the device's behavior on different materials.
• Keep the device's firmware updated if updates become available from the manufacturer.
• Utilize the voice broadcast feature in noisy environments or when visual confirmation is difficult.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official UNI-T website. Keep your proof of purchase for warranty claims.