60 Keysight Infiniium MXR-Series Real-Time Oscilloscopes User's Guide
5 Calibrating the Oscilloscope
When to Perform a User Calibration
When to perform a user calibration:
• Standard calibration only—When the oscilloscope's operating temperature
(after the 30-minute warm-up period) is more than ±5 °C different from that of
the last calibration. Be sure to perform a standard user calibration (do not
perform the time scale cal)—even if one was recently performed—when
environmental temperature conditions cause the oscilloscope's operating
temperature to change, such as when the oscilloscope is moved to a test rack
or chamber.
• Standard and time scale cal—When it has been more than 1 year since the last
time scale calibration, or when you replace the acquisition board.
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