Specifications

Chapter 2 Command System RIGOL
M300 Programming Guide 2-137
[SENSe:]CURRent[:DC]:RESolution
Syntax [SENSe:]CURRent[:DC]:RESolution {<resolution>|MIN|MAX}[,(@<ch_list>)]
[SENSe:]CURRent[:DC]:RESolution? [{(@<ch_list>)|MIN|MAX}]
Description
Set or query the resolution of the DCI measurements on the specified channels.
Parameters
Name
Type
Range
Default
<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: refer
to the “Explanation”.
0.3ppm×
<range>
<ch_list>
Channel
List
One or more channels (only for channel 21
to channel 24 of MC3324), the rules are as
follows:
(@121): channel 21 on the module in Slot1;
(@121:123): channel 21 through 23 on the
module in Slot1;
(@121:123,324): channel 21 through 23 on
the module in Slot1 and channel 24 on the
module in Slot3.
If the
parameter is
omitted, this
command will
be applied to
the whole scan
list.
Explanation  You can use MIN or MAX to set <resolution>. Wherein, MIN selects the smallest
resolution; MAX selects the largest resolution.
 <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>
20PLC
0.06ppm× <range>
100PLC
0.035ppm× <range>
200PLC
0.03ppm× <range> (MIN)
 When the range is set to autoranging, an error will be generated when <resolution> is
set to a numeric value (except MIN and MAX).
 The instrument sets the resolution to 0.3ppm× <range> after a Factory Reset (send
the
*RST command). An Instrument Preset (send the SYSTem:PRESet command) or
Card Reset (send the SYSTem:CPON command) does not affect the current resolution.
Return
Format
The query returns the resolution in the form of scientific notation for each channel
specified. Multiple responses are separated by commas.
Example CURR:DC:RANG 1,(@121,122)
CURR:DC:RES 0.00001,(@121,122)
CURR:DC:RES? (@121,122)
The query returns +3.00000000E-06,+3.00000000E-06.
Related
commands
[SENSe:]CURRent[:DC]:APERture
[SENSe:]CURRent[:DC]:NPLC
[SENSe:]CURRent[:DC]:RANGe:AUTO