PQWT PQ125C Water Leak Detector User Manual

1. Introduction

The PQWT PQ125C Water Leak Detector is a professional instrument designed for precise detection of water leaks in underground and indoor pipelines. Utilizing advanced acoustic technology, it helps identify leakage points with high accuracy, minimizing damage and repair costs. This manual provides essential information 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.

Image: All components of the PQWT PQ125C Water Leak Detector neatly organized within its portable carrying case.

• Host Machine (main display unit)
• Control Handle
• DMR-V59 Sensor (for indoor pipeline leakage)
• DMR-H40 Sensor (for leakage detection in walls and narrow spaces)
• RCS-S3 Sensor (for outdoor pipelines, industrial water supply pipes)
• Listening Rod
• Shoulder Strap
• USB Data Cable
• Charger
• Headphones

3. Key Features and Technologies

• Three-Scenario Applicability: The device includes multiple sensors for diverse detection needs:
  • DMR-H40 sensor: Ideal for leakage detection in walls and narrow spaces.
  • DMR-V59 sensor: Suitable for indoor pipeline leakage detection.
  • RCS-S3 sensor: Designed for outdoor pipelines, industrial water supply pipes, and other pipelines.
  

  Image: Illustration of the different sensors (DMR-H40, DMR-V59, RCS-S3) and their specific applications for leak detection.

• Precise Positioning: Features two detection modes:
  • General Mode: For rapid investigation of large areas.
  • Location Mode: Provides accuracy within 10cm for precise identification of leakage points.
• Dual-Diaphragm Resonance Technology: Enables precise acquisition of weak signals, even in narrow and confined spaces. This technology ensures synchronous resonance when leak sound waves reach the sensor, amplifying the vibration amplitude for accurate detection.

  Dual Membrane Resonance Sensor Working Principle

  Video: An animated explanation of how the dual membrane resonance sensor detects leak sounds by amplifying synchronous vibrations.
• Acoustic Cavity Re-Vibration Technology: Highly sensitive to micro-vibrations, making it suitable for complex and noisy environments by attenuating interfering signals and reinforcing low-frequency leak signals.

  Acoustic Chamber Resonance Sensor Working Principle

  Video: An animated demonstration of the acoustic chamber resonance sensor's operation, showing how it filters noise and enhances leak signals.

• Intuitive UI and Simple Operation: Features a self-developed UI with a clear touchscreen interface, guided instructions, and error alerts for ease of use.
  

  Image: The device's display unit highlighting key performance upgrades and user interface elements.

• Ergonomic Design: Includes an adjustable portable handle and an IP54 waterproof case for durability and adaptability in various environments.
• Long Battery Life: Equipped with a 7000mAh large battery, providing up to 8 hours of runtime. Features Type-C charging for convenience.
• Custom-Tuned Headphones: Designed to effectively isolate and filter environmental interference, allowing users to focus on leak sounds.
  

  Image: Close-up of the specialized headphones, illustrating their active noise isolation and specific vocal range capabilities.

4. Application Scenarios

The PQWT PQ125C Water Leak Detector is suitable for a wide range of applications, including:

• Municipal water supply pipelines (outdoor)
• Fire-fighting pipelines
• Underground pressure pipelines
• Heating and radiator pipelines
• Underfloor heating networks
• Household fresh-water plumbing systems
• Other pressurized pipeline scenarios

Image: Indoor pipeline leak detection using the device.

Image: Outdoor pipeline leak detection in a ground setting.

5. Setup and Operation

5.1 Initial Setup

1. Charge the Device: Connect the host machine to the charger using the USB data cable. Ensure the device is fully charged before first use.
2. Connect Components: Attach the desired sensor (DMR-H40, DMR-V59, or RCS-S3) to the host machine. Connect the control handle and headphones.
3. Power On: Press and hold the power button on the host machine to turn it on.

5.2 Operating Modes

The PQ125C offers two primary detection modes:

• General Mode: Use this mode for initial surveys and rapid investigation of large areas to quickly identify potential leak zones.
• Location Mode: Once a potential leak zone is identified, switch to Location Mode for precise pinpointing of the leak. This mode provides accuracy within 10cm.

5.3 Leak Detection Procedure

1. Select Sensor: Choose the appropriate sensor based on the detection environment (e.g., DMR-H40 for walls, DMR-V59 for indoor floors, RCS-S3 for outdoor ground).
2. Initial Scan (General Mode):
   • Place the sensor on the surface above the suspected pipeline.
   • Move the sensor along the direction of the pipeline.
   • Monitor the sound and image fluctuations on the display. Areas with small fluctuations indicate no damage.
3. Pinpointing the Leak (Location Mode):
   • When significant sound and image fluctuations are observed, indicating a potential leak, switch to Location Mode.
   • Carefully move the sensor in smaller increments around the area of high fluctuation.
   • The device will provide a clear indication of the leak's precise location.

   How to Identify the Location of the Leakage

   Video: A demonstration of using the PQWT leak detector to identify the precise location of a pipeline leak, showing the visual and auditory cues.

6. Maintenance

• Cleaning: Regularly wipe the host machine, sensors, and accessories with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
• Storage: Store the device and its components in the provided IP54 waterproof case in a cool, dry place when not in use.
• Battery Care: To prolong battery life, avoid fully discharging the device frequently. Charge the device regularly, even during long periods of storage.
• Sensor Inspection: Periodically inspect sensors for any signs of wear or damage. Ensure connections are secure.

7. Troubleshooting

If you encounter issues with your PQWT PQ125C, refer to the following common problems and solutions:

For issues not listed here or if troubleshooting steps do not resolve the problem, please contact PQWT customer support.

8. Specifications

9. Warranty and Support

The PQWT PQ125C Water Leak Detector comes with a 2-year manufacturer warranty for the host machine. PQWT is committed to providing excellent customer service, including:

• 2 years of worry-free use.
• Round-the-clock rapid response.
• Lifetime professional guidance.
• One-on-one after-sales service.

For warranty claims, technical assistance, or any inquiries, please contact Hunan Puqi Water Environment Institute Co,Ltd. or your authorized dealer.

Image: The PQWT after-sales service team ready to provide support.