Cable and line Testing Instrument
LQHV-515 Intelligent Multi-Frequency Pipeline Detection System
Multi-Utility Detection Solution
This DL/T 849.3-2004 compliant detector locates underground cables, gas/water pipes, and telecom conduits with 6-meter penetration depth. Widely adopted by China's oilfields and municipal utilities for construction surveys and maintenance.
Product Parameters
Receiver
Active frequency | Receives 8 different frequencies, namely 50Hz, 577Hz, 815Hz, 8kHz, 33kHz, 65.5kHz, 82kHz, 133kHz |
Depth range | 0~6M |
Current range | Direct reading current, range 000~999mA |
Receive mode | Wide peak mode, valley mode, external device mode |
Detection accuracy | Detection accuracy: 0~3m is 5% of the buried depth; 3~6m is 10% of the buried depth |
Signal strength indication | LCD display, sound prompt |
Signal interface | The three interfaces of digital size, raster length and sound urgency indicate signal strength at the same time, and the dynamic range is 0~999, which can indicate the maximum signal strength |
Gain dynamic range | Automatic adjustment and manual adjustment, dynamic range 0~100dB |
Receive mode | Wide peak mode, valley mode, external device mode Digital signal and battery display, operating frequency, depth, volume, left/right direction display |
LCD display | LCD display, graphic display, LCD screen backlight brightness can be manually switched on/off, using 240×128 dot matrix 3.6 inch black and white LCD screen, LCD screen backlight controllable |
Battery | Lithium rechargeable battery, more than 12 hours |
Overheating and overcurrent | Automatic protection |
Operating temperature | -20℃~70℃ |
Volume | 620×110 ×2300mm |
Weight | 1.6kg |
Launcher
Output frequency | 577Hz、815Hz、8kHz、33kHz、65.5kHz、82kHz、133kHz |
Output mode | Induction mode, direct connection mode, clamp mode |
Output power | 10W |
Output voltage | 60V |
Maximum output current | 1A |
Power supply | Dual power supply, lithium battery pack (energy saving and environmental protection) |
Overheating and overcurrent | Automatic protection |
Battery status | Continuous display |
Continuous working hours | 1W≥12 hours; 8 hours at 5W≥ 8 hours; ≥5 hours at 10W |
Ambient temperature | -20℃-50℃ |
Core Detection Technologies
Smart Frequency Adaptation
Automatically selects optimal frequency (512Hz-65kHz) for:
Long-distance tracing (low freq)
Precision pin-pointing (high freq)
Advanced Signal Processing
Narrowband filtering (60dB interference rejection)
Auto-impedance matching
Current measurement for pipe identification
Field Operation Benefits
All-in-One Diagnostics
Integrated multimeter functions:
Cable continuity testing
Insulation resistance measurement
Loop resistance check
Extended Runtime
Dual power options:
Rechargeable Li-ion battery (8hrs+)
Dry battery backup
Industry Applications
Power Utilities: Underground cable route surveys
Oil/Gas: Pipeline maintenance and leak detection
Municipal Water: Non-metallic pipe tracing with sonde
Telecom: Fiber optic conduit location
Complete Package Includes
Transmitter (12W output)
3-antenna receiver
Li-ion battery & charger
Calibration tools
Waterproof carry case
Competitive Advantages
Conventional Locators
Single-frequency detection
Manual impedance adjustment
2-3m max depth
LQHV-515
4-frequency adaptive scanning
Auto-impedance matching
6m+ depth capability
Quality Certifications
Manufactured under:
ISO9001:2015 Quality Management
GB/T 24001-2016 Environmental
China Metrology Certification (CMC)