The HZ-780 Series Optical Time Domain Reflectometer is a next-generation intelligent, high-end integrated measurement instrument designed for testing and engineering optical fiber communication systems. It features a standard 5.8-inch touch screen and advanced real-time weak-signal analysis and processing technology, delivering excellent test performance.

The instrument supports multiple test functions including VFL (Visual Fault Location), OPM (Optical Power Meter), LS (Laser Stabilized Light Source), end-face inspection, optical loss testing, event map analysis, and fault location. It is widely used in FTTH networks, local fiber-optic networks, metropolitan fiber-optic networks, and PON network construction, deployment, maintenance, certification, as well as optical communication teaching and scientific research.

• Resists high heat, humidity, and salt spray for tropical island use
• Runs stably at -40°C, cold-proof and anti-condensation
• IEC compliant, complete calibration certificates provided
• Local support: spares, on-site training, and instrument calibration

The HZ-780 Series features a novel, bright appearance and durable construction. It offers one of the industry's simplest operation interfaces with an intuitive operating style. Optimized parameter configuration simplifies test operations to the maximum extent, while one-key automatic test and analysis delivers results quickly. The intelligent test diagnosis function ensures accurate results.

The whole machine adopts an intelligent power management mode, and the large-capacity lithium battery allows the instrument to work for more than 8 hours. It is suitable for a wide range of applications, including FTTH networks, local area fiber networks, deployment and maintenance, certification, and optical communication teaching and research.

1. OTDR: Measures the length, loss, splice quality, and other parameters of various optical fibers and cables. Widely used in engineering construction, line maintenance testing, and emergency repair of optical fiber communication systems, as well as in the development and production measurement of optical fibers and cables.
2. Light Source: Provides 1310nm / 1490nm / 1550nm / 1625nm four-wavelength output with high stability. Can be used as a standard light source for insertion loss, isolation, and return loss testing of optical passive devices (wavelength consistent with OTDR).
3. Optical Power Meter: Wide measurement power range with high precision. Suitable for power testing of optical communication equipment, optical fibers, and optical passive devices.
4. VFL Visual Fault Location: Intuitively, conveniently, and accurately determines the location of optical fiber fault points. Suitable for detecting near-end fault points of bare optical fibers, fiber jumpers, and other fibers and cables that can leak red light, as well as high-loss sections caused by micro-bending.
5. End-Face Detection: One-time optical fiber end-face magnification of 100 times with clear, well-centered imaging. Used for optical network maintenance, engineering installation, and device manufacturer inspection of fiber end faces (optional).
6. Optical Loss Test: Through the light source and optical power meter, combined with standard optical fiber, enables insertion loss testing of optical passive devices.
7. Event Map: Graphically presents abstract curve analysis results, helping non-professional testers more intuitively understand the connection of the link under test.
8. Fault Location: Easily and quickly finds fiber breakpoints. Press one button to start measurements and event search, then clearly display the location of the fiber breakpoint.

1. Multi-functional platform design with patented technology
2. Unique one-key automatic test function
3. Intelligent testing and diagnostic function
4. Novel, attractive appearance and structural design
5. ≤ 0.8m short event blind zone — easily tests fiber optic patch cords
6. 45dB large dynamic range, 256k data sampling points
7. Line with light detection and alarm function
8. Ethernet remote control function
9. Universal optical output connector, easy to replace, supports a variety of interface testing
10. 8 hours of ultra-long battery life, suitable for long-time field construction applications
11. Highly intelligent analysis software accurately identifies faulty fusion points, connectors, and even macro-bending
12. Language selection: English and other language options, customizable according to customer requirements