A P P L I C A T I O N S :

Insertion Loss and Link Loss Testing

The 555B 1mm InGaAs optical power meter is a rugged high quality general purpose instrument suitable for many fiber optic measurement applications.
Paired with a Tempo 250 Series LED source or 260 Series laser source, the 555B optical power meter is ideal for insertion loss testing of multimode and single-mode fiber optic cables and connectors. The 555B optical power meter can also be used for link loss testing of installed cable plants.
Output Power Measurements
The 555B optical power meter simplifies output power measurements of transmitters and other light sources. The four calibration wavelengths, InGaAs photodetector, and wide dynamic range make the 555B optical power meter suitable for measuring the output of both LED and laser based transmitters.
In addition, a broad range of Snap-On Connector (SOC) adapters for both industry standard fiber optic connectors, and many less common types, makes the 555B and indispensible tool for technicians and others working with light-based transmission systems. 

F E A T U R E S

• 1mm indium-gallium-arsenide (InGaAs) photo detector
• 850nm, 1300nm, 1310nm, and 1550nm N.I.S.T. traceable calibration wavelengths
• +3 to -60dBm measurement range
• Easy to use—three buttons control all functions
• 0.01dB measurement resolution
• Relative logarithmic dB and absolute logarithmic dBm units
• Multi-wavelength reference storage—stores and recalls reference power levels for faster, more efficient measurements
• Snap-On Connector (SOC) interface adapts to all industry standard fiber optic connectors and other less common types
• Long battery life—more than 100 hours of continuous operation
• User-selectable auto-shutoff
• AC power converter and adapter available for prolonged or benchtop use
• Rugged and Splashproof

K E Y  S P E C I F I C A T I O N S
Detector type                          1mm InGaAs
Calibration wavelengths         850 1300 1310 and 1550nm
Calibration traceability           U.S. N.I.S.T.
Power range                            +3 to -60dBm
Absolute accuracy                  ±0.25dB
Resolution                               ±0.01dB
Polarization dependence        <0.1dB