The 3M Photodyne 3 X 19 XT is a portable optical attenuator set with integrated optical meters, designed for precise attenuation control and power level measurement across multiple wavelengths. This full instrument set includes a protective carrying case and supports both multimode and single-mode fiber characterization, making it essential for field technicians and laboratory environments requiring reliable optical path analysis and fiber optic network maintenance.
Technical Specifications
• Model: 3 X 19 XT
• Attenuation Range: 0–60 dB at 1550 nm; 0–70 dB at 850 nm and 1300 nm
• Wavelengths Supported: 850 nm, 1300 nm, 1550 nm
• Fiber Compatibility: Multimode and single-mode
• Resolution: 0.1 dB
• Insertion Loss: 3.0 dB
• Control Methods: Front panel operation or external electrical signal control via analog input voltage at 25 dB per volt
• Display: Digital readout with full annunciation of attenuation level and wavelength
• Power Supply: AC adapter with internal battery backup (batteries subject to replacement)
• Optical Connector: ST/PC (variant dependent)
– Key Features
• Dual control—manual front panel adjustment or voltage-controlled attenuation for automated testing sequences
• Multi-wavelength operation across C-band, S-band, and O-band applications
• 0.1 dB resolution enables fine-tuned optical signal attenuation for demanding measurements
• Portable case design supports on-site deployment across diverse field environments
• Fully annunciated digital display eliminates guesswork in attenuation settings
– Typical Applications
• Optical power level testing and characterization in fiber optic networks
• Signal attenuation adjustment and optical path loss analysis
• Field service and bench-top laboratory measurements
• Multi-wavelength fiber optic system validation and troubleshooting
– Compatibility & Integration
Designed for both shortwave and longwave fiber optic applications. ST/PC connector configuration standard; additional connector types supported through individual meter variants within the set.
