Intelligent Cable Fault Locator

The MOEORW-WLG135 is a high-precision cable fault detection device developed based on modern microelectronic technology. It provides comprehensive cable fault diagnosis and location solutions for electrified railways, communication base stations, video surveillance, CATV networks, and industrial automation. Integrating three core functions - Low-Voltage Pulse Reflection (TDR), High-Voltage Digital Bridge, and Digital Megohmmeter - this instrument accurately identifies and locates various faults including open circuits, short circuits, cross connections, ground faults, poor insulation, loose connections, and intermittent faults. It serves as an ideal tool for line maintenance, project acceptance testing, and cable electrical characteristic inspection.

Advantage 1: Strong Anti-Interference and High-Precision Location
Built-in DSP digital narrow-band filtering technology effectively eliminates on-site electromagnetic interference (such as railway traction current and inverter harmonics), ensuring clean fault reflection waveforms even in harsh environments.
Automatic gain control and automatic impedance balancing technology replace traditional manual potentiometer adjustments, adapting to cables with different characteristic impedances without manual intervention.
Test resolution up to 0.01 meters, with pulse width automatically adjusted from 50ns to 10μs, ensuring fine resolution for both short-distance and long-distance testing.

Advantage 2: Full-Fault-Type Coverage
Low-Voltage Pulse Method (TDR): Suitable for low-resistance faults such as open circuits, short circuits, and cross connections. Maximum test range ≥32 km. Supports multiple cable types including digital cables, all-plastic cables, filled cables, and pulp-insulated cables, with user-definable wave velocity.
High-Voltage Digital Bridge Method (0~1000V adjustable): Specifically designed for high-resistance faults (insulation resistance up to several megaohms to tens of megaohms). One-key automatic calculation of fault distance percentage with accuracy of 0.001%, and anti-AC interference >100VAC.
Digital Megohmmeter Function: One-key insulation resistance test (0.1MΩ~100MΩ), automatic calculation of absorption ratio and polarization index, supports continuous recording of 12 time-point insulation values to assist in determining cable moisture or aging levels.

Advantage 3: Intelligent Operation and Data Management
One-Key Automatic Ranging: Built-in intelligent algorithm simultaneously completes loop resistance measurement, cable length estimation, and fault distance percentage calculation, significantly reducing manual interpretation time.
Massive Storage Capacity: Stores up to 100,000 test waveforms, exportable to PC software via USB or Type-C interface for centralized data analysis, report generation, and long-term management.
High-Brightness Color Touchscreen: High-definition color LCD display visible under sunlight, full Chinese menu (English customizable), with backlight design supporting nighttime operation.

Advantage 4: Portability and Long Battery Life
Total weight of only 3 kg, equipped with a shoulder-carry portable bag, ideal for outdoor mobile operations.
Large-capacity lithium battery: approximately 3 hours charging time, continuous operation ≥10 hours, with low-battery alarm and automatic protection functions to ensure uninterrupted on-site testing.

The MOEORW-WLG135 Cable Fault Tester is applicable to the following typical on-site environments:
Railway Signaling Systems: Rapid fault location for open circuits, cross connections, and poor insulation in signal cables, track circuit cables, and balise transmission cables on electrified and non-electrified railway sections, ensuring traffic safety.

Telecom Carrier Central Offices and Access Networks: Daily maintenance, emergency repair, and quality assessment of local all-plastic cables, trunk cables, and feeder cables.
Video Surveillance and Security Projects: Detection of open circuits, short circuits, and loose connections in coaxial video cables, RS485 control lines, and composite power/signal cables, suitable for Smart City and traffic monitoring projects.

CATV Networks: Fault diagnosis on main trunk and branch coaxial cables to ensure signal transmission quality.

Industrial Automation and Process Control: Preventive maintenance and fault diagnosis for fieldbus cables such as Profibus, Modbus, and Devicenet, as well as instrument signal cables.

Power System Secondary Circuits: Insulation degradation and ground fault detection for control cables and protection signal cables, supporting substation automation system maintenance.

Project Acceptance and Line Survey: Electrical characteristic acceptance of newly built lines, insulation aging assessment and asset inventory of legacy lines.

As a professional test instrument manufacturer, we fully understand that wholesale clients prioritize product consistency and supply stability. Our production system features the following core competencies:
 

R&D Team Background
Our core R&D personnel have over ten years of accumulated experience in cable testing technology. Each instrument undergoes multiple rounds of field testing and algorithm optimization to ensure that the test algorithms strictly align with industry standards.
 

Supply Chain Control
Key components (such as high-speed ADCs, pulse generation chips, and high-voltage transformers) are sourced from tier-one brand suppliers. Incoming materials undergo 100% electrical parameter inspection to guarantee quality at the source.
 

Production Process
Our production lines comply with the IPC-A-610 electronic assembly standard, utilizing fully automatic SMT placement and selective wave soldering to minimize manual soldering defects. Every unit undergoes 48-hour high-temperature aging (55°C) and simulated transport vibration testing.
 

Factory Calibration System
Each instrument is calibrated across the full range using standard-length cables (50m, 100m, 500m, 1km) and standard resistance networks before shipment, ensuring test accuracy traceable to national standards.

Environmental Adaptability Verification
The product has passed temperature cycling tests from -25°C to 70°C, humidity resistance tests at 95% (non-condensing), and low-pressure tests at 4500 meters altitude, making it suitable for outdoor operations across all regions.
 

Production Capacity and Delivery
Monthly production capacity ≥200 units, with standard order delivery lead time of 7~15 working days, meeting urgent project bulk procurement requirements.
 

After-Sales Service and Technical Support
We provide a one-year comprehensive warranty, long-term supply of consumables and accessories (such as test leads and chargers), and offer customized instrument panel branding and software logo modification services for key accounts.