[SENSe:]{FREQuency|PERiod}:VOLTage:RANGe:AUTO{OFF|ON|ONCE}
[SENSe:]{FREQuency|PERiod}:VOLTage:RANGe:AUTO?
Disables or enables voltage autoranging for frequency and period measurements. Autoranging is convenient because it
automatically selects the range for each measurement based on the input signal.
Specifying ONCE performs an immediate autorange and then turns autoranging off.
This parameter is shared between frequency and period measurements. Setting or querying the
parameter with the FREQuency version of this command is identical to setting or querying it with the
PERiod version.
The maximum range parameter (MAX) is 1000 V. However, the SAFETY
LIMIT on the front and rear HI/LO input terminals is 750 VAC (rms). The rms
voltage is waveform dependent. A sine wave is limited to 750 VAC (rms), but
a 1000 Vpk square wave is safe. Connection to AC mains power is further
limited to CAT II (300 V). See Safety and Regulatory Information for more
information on the safety features and the safe operation of this instrument.
Parameter Typical Return
{OFF|ON|ONCE}, default ON 0ξ(OFF)ξorξ1ξ(ON)
Configure frequency measurements and perform an immediate AC voltage autorange. Make and read two
measurements:
CONF:FREQ
FREQ:VOLT:RANG:AUTO ONCE
SAMP:COUN 2
READ?
Typical Response: +1.04530000E+03,+1.04570000E+03
l Autoranging goes down a range at less than 10% of range and up a range at greater than 120% of range.
l With autoranging enabled, the instrument selects the range based on the input signal.
l Selecting a fixed range ([SENSe:]<function>:RANGe) disables autoranging.
l This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet).
Agilent Truevolt Series DMM Operating and Service Guide 203
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