User`s guide

Examples
The following command configures the instrument for period measurements,
triggers the meter to take a reading, and then transfers the reading to the
instrument output buffer. The default range (50 ms) and aperture (100 ms)
are used for the measurement.
MEAS:PER?
Typical Response: +1.32130000E-03
The following command configures the instrument for period measurements,
triggers the meter to take a reading, and then transfers the reading to the
instrument's output buffer.
MEAS:PER? 0.001,0.0000001
Typical Response: +4.27150000E-04