[SENSe:]FREQuency:VOLTage:RANGe:AUTO

[SENSe:]FREQuency:VOLTage:RANGe:AUTO
[SENSe:]PERiod:VOLTage:RANGe:AUTO

Syntax | Description | Parameters | Remarks | Return Format | Examples

Syntax

[SENSe:]FREQuency:VOLTage:RANGe:AUTO <state>[,(@<ch_list>)]
[SENSe:]FREQuency:VOLTage:RANGe:AUTO? [(@<ch_list>)]

[SENSe:]PERiod:VOLTage:RANGe:AUTO <state>[,(@<ch_list>)]
[SENSe:]PERiod:VOLTage:RANGe:AUTO? [(@<ch_list>)]

Description

These commands disable or enable voltage autoranging for frequency and period measurements on the specified channels. Autoranging is convenient because the instrument automatically selects the range for each measurement based on the input signal detected.

Used With:

• 34901A   20 Channel Multiplexer (2/4-wire) Module
• 34902A   16 Channel Multiplexer (2/4-wire) Module
• 34908A   40 Channel Single-Ended Multiplexer Module

Parameters

Name	Type	Range of Values	Default Value
<mode>	Boolean	{OFF|0|ON|1}	This is a required parameter.
<ch_list>	Channel List	One or more channels, as shown: (@310) - channel 10 on the module in slot 300. (@305:310) - channels 05 through 10 on the module in slot 300. (@202:207,209,302:308) - channels 02 through 07 and 09 on the module in slot 200 and channels 02 through 08 on the module in slot 300.	If you omit the optional <ch_list> parameter, this command applies to the currently defined scan list.

Remarks

• 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:
  
  100mV
  1 V
  10 V
  100 V
  300 V
• Selecting a discrete range (see [SENSe:]FREQuency:VOLTage:RANGe command) will disable autoranging on the specified channels.
• The CONFigure and MEASure? commands automatically enable autoranging if the first parameter is AUTO, DEF or omitted.
• Because frequency and period are related functions, changing a measurement parameter for one function will also change the corresponding parameter for the other function
• 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 returns 0 (OFF) or 1 (ON).

Examples

The following command disables autoranging.

FREQ:VOLT:RANG:AUTO OFF

The following query returns the autoranging setting.

FREQ:VOLT:RANG:AUTO?

Typical Response: 0

See Also

SENSe Subsystem Introduction

CONFigure:FREQuency

CONFigure:PERiod

[SENSe:]FREQuency:VOLTage:RANGe

[SENSe:]PERiod:VOLTage:RANGe