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Command parameter:
<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:
: CURRent:AC:REFerence <n> Specify reference for ACI
: CURRent:DC:REFerence <n> Specify reference for DCI
Command parameter:
<n> = -20 to 20 Reference for ACI
0 to 20 Reference for DCI
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.
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