Operating Guide - HP 53131A Operating Manual

Chapter 2 Operating Your Universal Counter
Using CHANNEL 1 and CHANNEL 2 Input Conditioning Keys
9 Press any one of the arrow keys until SENSTVTY: HI is displayed.
The Counter's CHANNEL 1 sensitivity is set high as shown in the
following figure.
1 2
The Counter should now be triggering as determined by the sensitivity
level, and displaying the input signal's frequency if the input signal
peak-to-peak voltage is large enough for the selected sensitivity level.
The signal must travel completely through the trigger band before a valid
trigger is recognized.
10 Press any one of the arrow keys until SENSTVTY: LO is displayed.
The Counter's CHANNEL 1 sensitivity is set low as shown in the
following figure.
1
2-50
3 4
0V
2
0V
Trigger
Band
Trigger
Band

Operating Guide