User manual

<b> = 1 or ON Enable auto range

0 or OFF Disable auto range

Query:

:AUTO? Query auto range (ON or OFF)

Description:

These commands are used to control auto ranging. With auto ranging enabled, the instrument

automatically goes to the most ideal range to perform the measurement.

The auto range command (:RANGe:AUTO) is coupled to the command that manually selects the

measurement range (:RANGe <n>). When auto range is enabled, the parameter value for :RANGe

<n> changes to the automatically selected range value. Thus, when auto range is disabled, the

instrument remains at the automatically selected range. When a valid :RANGe <n> command is

sent, auto ranging disables.

:REFerence <n> Commands

:REFerence <n>

Command syntax:

:VOLTage:AC:REFerence <n> Specify reference for ACV

:VOLTage:DC:REFerence <n> Specify reference for DCV

Command parameter:

<n> = -757.5 to 757.5 Reference for ACV

-1010 to 1010 Reference for DCV

DEFault 0 (All measurement functions)

MINimum Minimum value for specified function

MAXimum Maximum value for specified function

Query:

:REFerence? Query reference for relative function

Description:

These commands are used to establish a reference value for the specified function. When reference

is enabled (:REFerence:STATe), the result will be the algebraic difference between the input signal

and the reference value:

Reading = Input signal – Reference

From the front panel, reference is called relative (REL).

The :REFerence <n> command is coupled to the :ACQuire command. The last command sent

(:REFerence <n> or :ACQuire) establishes the reference. When a reference is set using

the :REFerence <n> command, the REFerence? query command returns the programmed value.

Conversely, when a reference is set using the :ACQuire command, the :REFerence? query

command returns the acquired reference value.

(Note: In order to send a REFerence? query, the reference value must be set either