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:RANGe <n>
Command syntax:
:FREQuency:THReshold:VOLTage:RANGe <n> Set voltage threshold range.
:PERiod:THReshold:VOLTage:RANGe <n> Set voltage threshold range.
Command parameter:
<n> = 0 to 1010 Specify signal levels in volts (voltage threshold)
Query:
:RANGe? Query maximum signal level.
Description:
These commands are used to specify the expected input level. The instrument will then
automatically select the most ideal current or voltage threshold range.
:REFerence <n> Commands
:REFerence <n>
Command syntax:
:FREQuency:REFerence <n> Specify reference for FREQ
:PERiod:REFerence <n> Specify reference for PER
Command parameter:
<n> =
0 to 1.0e6 Reference for FREQ
0 to 1 Reference for PER
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.
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