EXFO FTB-8500 Series for FTB-500 - Manual (Page 458)

Maintenance
444 FTB-8500 Series and FTB-8120NGE/8130NGE
Recalibrating the Unit
Recalibrating the Unit
Manufacturing and service center calibrations are based on the
ISO/IEC 17025 Standard, which states that calibration documents must not
contain a recommended calibration interval, unless this has been
previously agreed upon with the customer.
Validity of specifications depends on operating conditions. For example,
the calibration validity period can be longer or shorter depending on the
intensity of use, environmental conditions and unit maintenance. You
should determine the adequate calibration interval for your unit according
to your accuracy requirements.
Under normal use, EXFO recommends calibrating your unit every two
years.
Recycling and Disposal
(Applies to European Union Only)
For complete recycling/disposal information as per European Directive
WEEE 2002/96/EC, visit the EXFO Web site at
www.exfo.com/recycle .