NOYAFA NF-917 Optical Power Meter & VFL
The NOYAFA NF-917 Optical Power Meter & VFL is designed for professional fiber optic testing, installation, maintenance, and troubleshooting. It combines optical power measurement capabilities with a high-output Visual Fault Locator for identifying fiber faults across long-distance fiber links.
Optical Power Meter
The NF-917 supports optical power measurement from -70 to +10 dBm across commonly used fiber wavelengths from 850nm to 1625nm. With 0.01 dBm resolution, it allows technicians to monitor optical signal levels during fiber installation, maintenance, and network troubleshooting.
Supported wavelengths:
- 850nm
- 1300nm
- 1310nm
- 1490nm
- 1550nm
- 1625nm
20mW Visual Fault Locator
The NF-917 features a 650nm Visual Fault Locator (VFL) with 20mW output power and up to 20km visual fault detection range under suitable fiber conditions.
The VFL can help technicians identify:
- Fiber breaks
- Fiber bends
- Poor connections
- Faulty splices
- Other visible fiber path issues
It supports continuous-wave (CW) and pulsed modes, providing flexibility for different fiber testing and troubleshooting requirements.
Technical Specifications
| Specification | Details |
|---|---|
| Device Type | Optical Power Meter & VFL |
| Detector | InGaAs |
| Optical Power Range | -70 to +10 dBm |
| Power Resolution | 0.01 dBm |
| Wavelength Range | 850–1625nm |
| VFL Wavelength | 650nm |
| VFL Output Power | 20mW |
| VFL Detection Range | Up to 20km |
| VFL Mode | CW / Pulsed |
| Frequency | 270Hz / 1kHz / 2kHz |
| Connector Support | FC / SC / ST / LC |
| Display | HD Backlit LCD |
| Battery | 3.7V 1500mAh Li-ion |
| Charging | Type-C |
| Operating Time | Up to 10 hours |
| Auto Shutdown | Default 15 minutes |
Fiber Optic Testing Applications
The NF-917 is suitable for:
- Fiber optic installation and commissioning
- Optical power level measurement
- Long-distance fiber troubleshooting
- Fiber break and bend identification
- FTTH and FTTx maintenance
- ISP and telecom networks
- Data center fiber infrastructure
- Enterprise fiber networks
- Fiber optic field service and maintenance
Professional Field Testing
With a 20mW VFL and up to 20km detection capability, the NF-917 provides technicians with a practical solution for locating visible faults across extended fiber links. Support for FC, SC, ST, and LC connectors, a backlit LCD, and Type-C rechargeable battery make it suitable for regular field testing.
Universal Fiber Solutions
Universal Fiber Solutions (UFS) provides professional fiber optic testing equipment and networking solutions for telecom operators, ISPs, data centers, enterprises, and fiber infrastructure projects. Contact UFS for product availability and technical assistance.








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