Calibration 2
S-Series Oscilloscopes Service Guide 17
 
• Standard Calibration and Time Scale Calibration—Time scale calibration will 
be performed. This option requires you to connect a 10 MHz reference signal 
to channel 1 that meets the following specifications. Failure to use a 
reference signal that meets these specifications will result in an inaccurate 
calibration.
c Connect the 50 Ω BNC cable from Aux Out to each of the channel inputs as 
requested.
d Connect the 50 Ω BNC cable to Aux Trig In as requested.
e Follow the directions for calibrating the digital channels (MSO models only).
f A Passed/Failed indication is displayed for each calibration section. 
If any section has failed, wait until the calibration is complete and then select 
the Enable Details check box for information on the failures. Also check the cable 
connections. 
5 When the calibration procedure is complete, click Close.
Frequency: 10 MHz, max ±41 ppb = 10 MHz, max ±0.41 Hz 
Amplitude: 0.2 V peak-to-peak to 5.0 V peak-to-peak 
Wave shape: Sine or Square
When performing the time scale calibration using the 53131A-012 universal frequency 
counter/timer, the precision 10 MHz reference is available from the 10 MHz Out connector on 
the rear panel of the 53131A counter/timer.