Fluke PM6681R, PM6685R manual INPut LEVel AUTO, Autotrigger INPutAUTO?, Command Reference

:INPut :LEVel :AUTO

￿«<Boolean>ONCE»

Autotrigger

:INPut:AUTO?

PM6685

If auto is on, the counter automatically controls the trigger level1 and the hyster- esis. If you have a stable amplitude, use the :AUTO ONCE, and auto will determine the trigger level once, and then set fixed levels.

Parameters

<Boolean> = ( 1/ON 0/OFF )

ONCE means that AUTO first switches ON to check the signal. After determining suitable sen- sitivity and trigger level setting, it programs these values as if they where manually set. It ends by switching off AUTO.

Using ONCE instead of AUTO ON improves measuring speed.

Returned format: 10￿

Example:

SEND￿ :INP;LEV:AUTO ￿ OFF

This example switches off AUTO, enabling the programmed trigger level setting.

*RST condition ON

1The autotrigger measure peak to peak level, and sets the lower level of the hyster- esis band to 33%, and the upper level to 66% of the value, ( for pulse and duty factor measurement, both levels are set to 50% ).

9-50 Command Reference