Keysight Technologies Infiniium MSOV 084A, Service Manual

Page: 19 / 164

Calibration
2
Infiniium V-Series Oscilloscopes Service Guide 19
Running a User Calibration
The user calibration uses signals generated in the oscilloscope to calibrate
channel scale, offsets, and trigger parameters. When running a user calibration,
you can choose to run optional time scale and interleave response correction
calibrations.
If your oscilloscope is an MSO model or has been upgraded to add MSO capability,
you can choose to calibrate only the digital channels rather than both the analog
and digital channels.
When to perform a user calibration:
• When it has been more than 1 year since the last time scale calibration,
perform the time scale portion when running the user calibration.
• 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, perform the
interleave response correction portion when running the user calibration.
Performing a user calibration will invalidate the oscilloscope’s Certificate of
Calibration. If NIST (National Institute of Standards and Technology) traceability is
required, perform the procedures in Chapter 3 using traceable sources.
Equipment Required
NOTE
The oscilloscope must be warmed up (with the oscilloscope application running) for at least
30 minutes at ambient temperature before starting the calibration procedure. Failure to allow
warm up may result in inaccurate calibration.
Equipment Critical specifications Recommended part number
Connector savers (5
supplied with
oscilloscope)
3.5 mm (f) to 3.5 mm (f) 54916-68717 (for models ≥ 20 GHz)
54916-68716 (for models ≤ 16 GHz)
Cable assembly 50 Ω characteristic impedance BNC
(m) connectors, 36 inches (91 cm) to
48 inches (122 cm) long
8120-1840
Adapter SMA (m) to BNC (f) 1250-1200
Cable (supplied with
oscilloscope)
No substitute 54916-61626
Digital channels cable
(MSO models only)
No substitute N2815-68701
MSO calibrator (MSO
models only)
No substitute N2834-68703