[SENSe:]FREQuency:VOLTage:RANGe:AUTO
Syntax
[SENSe:]FREQuency:VOLTage:RANGe:AUTO <mode> [, (@<ch_list>)]
[SENSe:]FREQuency:VOLTage:RANGe:AUTO? [(@<ch_list>)]
Description
This command disables or enables voltage autoranging for frequency measurements on the specified channels. Autoranging is convenient because the instrument automatically selects the range for each measurement based on the input signal detected. If you omit the optional <ch_list> parameter, this command applies to the internal DMM, independent of any channels or a scan list.
Used With:
34921A through 34925A Multiplexer Modules
Parameters
|
Name |
Type |
Range of Values |
Default Value |
|
<mode> |
Boolean |
{OFF|0|ON|1} |
Autorange ON |
|
<ch_list> |
Numeric |
One or more channels in the form (@sccc). |
If <ch_list> is omitted, this command applies to the internal DMM. |
Remarks
If you omit the optional <ch_list> parameter, the configuration applies to the internal DMM, independent of any channels or a scan list (any existing scan list is not redefined). An error is generated if the internal DMM is not installed or is disabled.
-
Autorange thresholds:
Down range at:
<10% of range
Up range at:
>120% of range
With autoranging enabled, the instrument selects one of the following ranges based on the input signal detected:
100 mV, 1 V, 10 V, 100 V, 300 VSelecting a discrete range (see [SENSe:]FREQuency:VOLTage:RANGe command) will disable autoranging on the specified channels.
Since frequency and period are related functions, changing a measurement parameter for one function will also change the corresponding parameter for the other function (see [SENSe:]PERiod:VOLTage:RANGe:AUTO command).
The instrument enables autoranging after a Factory Reset (*RST command). An Instrument Preset (SYSTem:PRESet command) or Card Reset (SYSTem:CPON command) does not change the setting.
Return Format
The query command returns "0" (OFF) or "1" (ON) for each channel specified. Multiple responses are separated by commas.
Examples
The following command disables autoranging on channels 3 and 13 in slot 1.
FREQ:VOLT:RANG:AUTO OFF,(@1003,1013)
The following query returns the autoranging settings on channels 3 and 13 in slot 1.
FREQ:VOLT:RANG:AUTO? (@1003,1013)
Typical Response: 0,0