User`s guide

Examples
The following example sets the meter's sample source to "TIM". The INIT
command sets the meter to the "wait-for-trigger" state. When a trigger is
received from the selected trigger source, the instrument starts taking
periodic samples after the current trigger delay.
SAMP:SOUR TIM
SAMP:TIM 0.1
INIT
The following query returns the current sample source.
SAMP:SOUR?
Typical Response: TIM