User`s guide

Remarks
The CONTinuity and DIODe test functions ignore the trigger delay setting.
Due to internal quantization, the actual delay that you set may be slightly
different than your specified value. The increment is approximately 20 µs.
Use the query command to determine the exact delay that is set. For
example, if you send "TRIG:DEL 500 ms", and then send the query
"TRIG:DEL?" the actual delay is returned (for example: "+5.00000753E-
01").
For ac measurements, the delay is based on the detector bandwidth. (See
note above.)
By default TRIGger:DELay:AUTO is on. The instrument automatically
determines the delay based on function, range, and integration time (see
Automatic Trigger Delays). However, you may need to set a delay longer
than the default/automatic delay for long cables, high capacitance, or high
impedance signals. In this case, turn the automatic delay off, and set the
desired delay with this command.
When this command is received, the instrument disables
TRIGger:DELay:AUTO.
If you specify a trigger delay with this command, that same delay is used
for all functions (except CONTinuity and DIODe) and ranges.
If you have configured the instrument to take more than one reading per
trigger (sample count >1, see SAMPle:COUNt command), the specified
trigger delay is inserted between the trigger and each reading if the
sample source is set to AUTO. If the sample source is set to TIMer, the
delay occurs only before the first reading (see SAMPle:SOURce).
The CONFigure and MEASure? commands set the automatic trigger delay.
The instrument selects 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.