User`s guide

Remarks
Selecting a specific trigger delay using the TRIGger:DELay command
disables the automatic trigger delay.
The CONFigure and MEASure? commands set the trigger delay to
Automatic.
The instrument enables an automatic trigger delay after a Factory Reset
(*RST command) or an Instrument Preset (SYSTem:PRESet command).
It is recommended that all triggered measurements be made using an
appropriate fixed manual range. That is, turn autorange off
(SENSe:<function>:RANGe:AUTO OFF), or set a fixed range using the
SENSe:<function>:RANGe, CONFigure, or MEASure command.