Agilent Technologies 4000 X-Series User Manual page 343

Performing User Cal will invalidate your Certificate of Calibration. If NIST
(National Institute of Standards and Technology) traceability is required,
perform the "Performance Verification" procedure in the Agilent
InfiniiVision 4000 X- Series Oscilloscopes Service Guide using traceable
sources.
To perform user calibration:
1 Disconnect all inputs from the front and rear panels, including the
2 Press the rear- panel CAL button to disable calibration protection.
3 Connect short (12 inch maximum) equal length cables to each analog
Figure 49
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
digital channels cable on an MSO, and allow the oscilloscope to warm
up before performing this procedure.
channel's BNC connector on the front of the oscilloscope. You will need
two equal- length cables for a 2- channel oscilloscope or four
equal- length cables for a 4- channel oscilloscope.
Use 50W RG58AU or equivalent BNC cables when performing User Cal.
For a 2- channel oscilloscope, connect a BNC tee to the equal length
cables. Then connect a BNC(f)- to- BNC(f) (also called a barrel
connector) to the tee as shown below.
To Channel 1
User Calibration cable for 2-channel oscilloscope
Utility Settings
Long cable
to TRIG OUT
To Channel 2
20
343