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B&K Precision 5491B - Manual User Manual

Page 52

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by :REFerence or :ACQuire command. If not, and error will occur in the return string.)

:STATe

Command syntax:

:VOLTage:AC:REFerence:STATe

Control reference for ACV

:VOLTage:DC:REFerence:STATe

Control reference for DCV

Command parameter:

= 1 or ON

Enable reference

0 or OFF

Disable reference

Query:

:STATe?

Query state of reference.

Description:

These commands are

used to enable or disable “reference” for the specified function. When

enabled, the displayed reading will include the programmed reference value. When disabled, the

displayed reading will not include the reference value.

:ACQuire

Command syntax:

:VOLTage:AC:REFerence:ACQuire

Acquire reference for ACV

:VOLTage:DC:REFerence:ACQuire

Acquire reference for DCV

Description:

When one of these commands is sent, the measurement input signal is acquired and established as

the reference value. This command is typically used to zero the display. For example, if the

instrument is displaying a 1

μV offset, sending this command and enabling reference zeroes the

display.

This command is functional only if the instrument is on the specified measurement function.

Sending this command while in any other function causes an error. Also, if the latest reading caused

an overflow condition or a reading has not been triggered, an error occurs when this command is

sent.

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