PQWT 125A Underground Water Leak Detector Instruction Manual

1. Introduction

The PQWT 125A is an advanced acoustic leak detector designed for precise detection of underground, indoor wall, and ground water pipe leaks. This manual provides comprehensive instructions for the safe and effective operation, maintenance, and troubleshooting of your device.

2. Package Contents

Verify that all items listed below are included in your package. If any items are missing or damaged, please contact customer support.

• Host Machine
• Control Handle
• DMR-V59 Sensor (for indoor pipe leakage)
• DMR-H40 Sensor (for wall and narrow spaces)
• Noise-reduction Headphones
• Shoulder Strap
• Charger
• Charging Cable
• Universal Adapter

Image: All components of the PQWT 125A kit, including the host, sensors, control handle, headphones, and accessories, presented in their protective carrying case.

Image: Detailed view of the PQWT 125A kit contents, listing each component for easy verification.

3. Key Features and Technologies

The PQWT 125A incorporates several advanced technologies to ensure accurate and efficient leak identification:

• Dual-Scenario Applicability: Equipped with DMR-H40 sensor for walls and narrow spaces, and DMR-V59 sensor for indoor pipe leakage.
• Precise Positioning: Features General Detection Mode for rapid area investigation and Location Mode for pinpointing leaks within 10cm.
• Dual Membrane Resonance Sensor: Utilizes a sensitive piezoelectric design to identify high-frequency leak signals from pipe cracks with high accuracy and strong anti-interference capabilities.
• AI-Enhanced Assistance Technology: Accurately reconstructs real-time acoustic fingerprints of pipeline leakage points.
• Time-Domain Waveform Dynamic Display: Separates and visualizes environmental noise from true leak signals.
• Sound-Intensity Focusing Technology: Effectively isolates and filters environmental interference for clearer signal detection.
• Multi-Dimensional Feature Extraction Technology: Distinguishes pipeline leak signals from normal water-flow acoustic patterns.
• Edge-AI Intelligent Analysis: Performs real-time leak analysis directly on the device without requiring an internet connection.
• Ergonomic Design: Adjustable portable handle and IP54 waterproof case for versatile use.
• Long Battery Life: 7000mAh battery provides up to 8 hours of runtime.
• Type-C Charging: Convenient and modern charging interface.
• High-Brightness LCD Screen: 280 CD/M² display for clear visibility even in bright sunlight.

Image: Professional Acoustic Detection Probes. This image illustrates the internal structure and technical expertise behind the sensors.

Image: Major Performance Upgrades. Highlights the device's enhanced battery life, charging capabilities, and screen clarity.

Image: One-of-a-kind Earphones. Illustrates the specialized headphones designed for optimal leak detection audio.

4. Setup

1. Charge the Device: Connect the host machine to the charger using the provided Type-C cable. Ensure the device is fully charged before first use.
2. Connect Sensors: Depending on your detection scenario, connect either the DMR-H40 sensor (for walls/narrow spaces) or the DMR-V59 sensor (for indoor ground pipes) to the host machine.
3. Connect Headphones: Plug the noise-reduction headphones into the designated audio jack on the host machine.
4. Power On: Press and hold the power button on the host machine until the screen illuminates.
5. Initial Settings: Follow the on-screen prompts to select your preferred language and adjust basic settings.

5. Operating Instructions

The PQWT 125A offers two primary detection modes for efficient leak identification.

5.1 General Detection Mode

Use this mode for rapid investigation of large areas to quickly identify potential leak zones.

1. Select "General Detection" on the main interface.
2. Move the connected sensor along the suspected pipeline path.
3. Listen for changes in sound intensity through the headphones and observe the waveform display on the screen. Higher intensity or distinct patterns indicate potential leak areas.
4. Mark areas with significant sound changes for further investigation in Location Mode.

5.2 Location Mode

Once a potential leak zone is identified, switch to Location Mode for precise pinpointing.

1. Select "Location Mode" on the main interface.
2. Place the sensor directly over the marked potential leak area.
3. Slowly move the sensor in small increments, observing the numerical readings and visual indicators on the screen. The highest reading typically corresponds to the leak's exact location.
4. The device is accurate to within 10cm for precise identification.

5.3 Application Scenarios

The PQWT 125A is suitable for various environments:

• Underfloor heating networks
• Household fresh-water plumbing systems
• Other pressurized pipeline scenarios (indoor walls, ground)

Image: Wide Range of Application. Illustrates the use of DMR-H40 for narrow spaces/walls and DMR-V59 for routine indoor ground detection.

6. Maintenance

• Cleaning: Wipe the device and sensors with a soft, dry cloth after each use. Do not use abrasive cleaners or solvents.
• Storage: Store the device and its components in the provided protective case in a cool, dry place away from direct sunlight and extreme temperatures.
• Battery Care: To prolong battery life, avoid fully discharging the device frequently. Charge the device regularly, even if not in use for extended periods.
• Sensor Care: Handle sensors with care. Avoid dropping them or exposing them to excessive force.

7. Troubleshooting

8. Specifications

9. Warranty and Support

PQWT offers comprehensive support for your leak detector:

• Warranty: 2 years of worry-free use for the host machine.
• Professional Guidance: Lifetime professional technical guidance.
• Customer Service: One-on-one after-sales service for personalized support.
• Contact: For any inquiries or support needs, please refer to the contact information provided with your product or visit the official PQWT website.

Image: PQWT Customer Support. Highlights the available support and warranty for the product.