Specifications
RIGOL Chapter 2 Command System
2-80 M300 Programming Guide
MEASure:VOLTage[:DC]?
Syntax MEASure:VOLTage[:DC]?
[{<range>|AUTO|MIN|MAX|DEF}[,{<resolution>|MIN|MAX|DEF}],] (@<scan_list>)
Description Configure the specified channels to the DCV measurement function with the specified
range and resolution, start a scan and read the readings.
Parameters
Name
Type
Range
Default
<range> Numeric
Any numeric value between MIN and MAX. The
final range is decided by the “
Principle of setting
with greater value
”.
For MC3232 and MC3264 module, the standard
values of the range: {200mv|2V|20V|150V}.
wherein, MIN=200mV, MAX=150V, DEF=AUTO.
For MC3120, MC3132, MC3164 and MC3324
module, the standard values of the range:
{200mV|2V|20V|200V|300V}, wherein,
MIN=200mV, MAX=300V, DEF=AUTO.
AUTO
<resolution> Numeric
Any numeric value between 0.03ppm×<range>
and 3ppm×<range>. The final resolution is
decided by the “
Principle of setting with smaller
value
”.
The standard values of the resolution: Shown in
the “Explanation” of this section.
0.3ppm×
<range>
<scan_list>
Scan
List
One or more channels (only for the multiplexer
channels), the rules are as follows:
(@101): channel 01 on the module in Slot1;
(@101:103): channel 01 through 03 on the
module in Slot1;
(@101:103,301): channel 01 through 03 on the
module in Slot1 and channel 01 on the module in
Slot3.
None
Explanation This command is equivalent to the CONFigure:VOLTage[:DC] command followed by
the
READ? command.
You can select autoranging to allow the instrument to automatically select a proper
measurement range or you can select a fixed range to set the range manually.
Autoranging rule: for signals under test that is between 10%*Range and
110%*Range, the instrument automatically selects Range as the current range.
When <range> is set to DEF or AUTO, an error will be generated if <resolution> is set
to a numeric value, because the instrument cannot calculate the integration time
accurately (especially when the input signal is continuously changing) when the
autoranging is combined with a numeric resolution. If your application requires
autoranging, be sure to specify "DEF" for <resolution> or omit the parameter.
<resolution> is related to the current integration time and range (<range>). The
relations are as shown in the table below.
Integration time
Resolution (ppm range)
0.02PLC
3ppm× <range> (MAX)
0.2PLC
0.7ppm× <range>
1PLC
0.3ppm× <range> (DEF)
2PLC
0.2ppm× <range>
10PLC
0.1ppm× <range>