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nnnn Denotes maximum number of flow samples to integrate,
range is 1 to 9999. (‘0500’ denotes 500 readings, leading
zeros must be included.)
Example 1) VA2000 Request a single volume reading by integrating
a maximum of 2000 flow samples and return data in ASCII format.
Volume data is returned in units of standard liters or volumetric liters.
The units of standard or volumetric is set using the SUs command.
The most common units are volumetric liters.
Before initiating this command, the sample interval, gas calibration,
and volume units should be set.
The sample interval between data points is set using the SSRnnnn
command.
The gas calibration is set using the SGn command.
The data can be returned in either ASCII or binary.
If the ASCII mode is chosen, the acknowledge sequence is “OK”
<CR>< LF>. Data acquisition begins as soon as the begin-trigger
condition is detected. The termination sequence is a <CR> <LF>. If
the command generated an error, instead of “OK” <CR> <LF> being
returned, an error code “ERRn” <CR> <LF> will be returned where n
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