The EXFO FPM-302X is a handheld fiber optic optical power meter designed for precise measurement of optical signal power across multiple wavelengths. Built around a high-power germanium detector, it delivers accurate power readings in dBm, dB, and Watt units via an LCD display. The instrument supports 10 calibrated wavelengths from 830 nm to 1625 nm, with auto-wavelength recognition that eliminates offset nulling and reduces measurement time. Power measurement spans from +26 dBm to –50 dBm, making it suitable for both standard and high-power applications.
## Technical Specifications
• **Detector:** High-power Germanium (GeX)
• **Calibrated Wavelengths:** 830 nm, 850 nm, 980 nm, 1300 nm, 1310 nm, 1450 nm, 1490 nm, 1550 nm, 1590 nm, 1625 nm
• **Measurement Range:** +26 dBm to –50 dBm
• **Power Uncertainty:** ±0.25 dB (typical for FPM-302 series at 1550 nm, 23 °C ± 1 °C, FC connector); ±0.05 dB at temperatures > 18 °C
• **Optical Connectors:** Interchangeable adapters (FC, SC, ST, LC)
• **Operating Temperature:** 0°C to 50°C
• **Battery Life:** Over 300 hours (three AA batteries)
• **Display:** LCD Screen
• **Interfaces:** USB data transfer; distant referencing via compatible EXFO light sources
## Key Features
• Auto-wavelength recognition across 10 calibrated points
• No offset nulling required, reducing field measurement time
• High-power germanium detector for extended dynamic range
• Fiber compatibility with single-mode and multimode cables
• Compact, battery-powered handheld design
## Typical Applications
• Passive Optical Network (PON) testing at 1310 nm, 1490 nm, and 1550 nm
• Fiber-to-the-home (FTTH) deployments and commissioning
• Fiber optic signal strength and loss analysis
• Network troubleshooting and maintenance
## Compatibility & Integration
• Complies with ITU-T G.983.3, G.984, and IEEE 802.3ah standards
• FCC Part 15 compliant
• Compatible with EXFO FLS-300 and FOT-300 light sources for distant referencing
• FTTx-ready architecture
