Maintenance
Optical Xplorer 139
Recalibrating the Unit
To help you with calibration follow-up, EXFO provides a special calibration
label that complies with the ISO/IEC 17025 standard and indicates the unit
calibration date and provides space to indicate the due date. Unless you
have already established a specific calibration interval based on your own
empirical data and requirements, EXFO would recommend that the next
calibration date be established according to the following equation:
Next calibration date = Shipping date+ Recommended calibration
period (ten years)
To ensure that your unit conforms to the published specifications,
calibration may be carried out at an EXFO service center or, depending on
the product, at one of EXFO’s certified service centers. Calibrations at
EXFO are performed using standards traceable to national metrology
institutes.
The original calibration date is available on the calibration certificate that
came with your unit. Since this date is printed on a sticker, if desired, you
could affix it to your unit for easier reference. The most recent calibration
date is also available from your unit (Main menu > Settings > About >
Calibration date).
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