The PM-204B is a precision optical power meter for fiber optic network characterization across LAN, WAN, CATV, and long-distance transmission environments. It measures optical power from -50 dBm to +26 dBm with ±5% ± 10 nW accuracy at 1550 nm and delivers 0.01 dB resolution across its primary operating range. The meter automatically detects wavelengths and supports six calibrated bands: 850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm, and 1625 nm. When paired with compatible Stabilized Laser Sources, it enables fiber identification, attenuation measurement, continuity verification, and link quality assessment. Auto-wavelength recognition with digital encrypted protocol support integrates with LS200 Series Light Sources. The unit stores up to 1,000 measurements and transfers data to PC via USB. Tone detection at 270 Hz, 1000 Hz, and 2000 Hz aids in fiber tracing and identification.
Technical Specifications
• Measurement Range: -50 dBm to +26 dBm
• Accuracy: ±5% ± 10 nW (1550 nm, CW, 23±3°C, RH ≤70%, FC connector)
• Resolution: 0.01 dB (-40 to +26 dBm); 0.1 dB (-50 to -40 dBm)
• Linearity: ±5%
• Calibrated Wavelengths: 850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm, 1625 nm
• Detector: InGaAs
• Tone Detection: 270 Hz, 1000 Hz, 2000 Hz
• Power Supply: 2 × 2500 mAh NiMH AA batteries or 6V AC/DC adapter
• Operating Temperature: -10°C to +50°C
• Storage Temperature: -20°C to +70°C
• Dimensions: 160 × 76 × 45 mm
• Weight: 270 g
– Key Features
• Automatic wavelength recognition with encrypted protocol support
• Data storage for 1,000 measurements with USB transfer
• Backlit LCD display
• Auto power-off function
• Reference value capability
• Interchangeable FC/PC, SC/PC, ST/PC connectors
• Built-in 2.5 mm universal adapter; optional 1.25 mm adapter available
– Typical Applications
• Fiber link attenuation measurement
• Optical continuity verification
• Fiber identification and tracing
• Transmission quality assessment
• Laboratory and field testing
– Compatibility & Integration
Designed for use with Precision Rated Optics Stabilized Laser Sources to unlock auto-wavelength detection and enhanced measurement protocols. Supports all common telecommunications wavelengths.
