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Language Dictionary - 8
107
SENSe:CURRent:DETector
This command lets you select the type of detector used for output current measurements. Two choices for
detecting current measurements are available:
ACDC
This is the preferred choice for all dynamic current measurements. When ACDC is selected,
the measured output current includes the current that flows in the instrument's output
capacitor. It is especially important to use ACDC detection when measuring pulse or other
waveforms with frequency contents greater than several kilohertz.
DC
Select DC only if you are making dc current measurements and you require a dc measurement
offset accuracy better than 2mA on the High current measurement range. When DC is
selected, the component of output current that is supplied by the instrument's output filter is
not sensed. Note that this selection gives inaccurate results on current waveforms with
frequency contents greater than several kilohertz.
NOTE: This command only applies to the High current measurement range.
Command Syntax
SENSe:CURRent:DETector <detector>
Parameters
ACDC or DC
*RST Value
ACDC
Examples
SENS:CURR:DET ACDC SENS:CURR:DET DC
Query Syntax
SENSe:CURRent:DETector?
Returned Parameters
<CRD>
SENSe:CURRent:RANGe
This command selects the dc current measurement range:
3A Range: 0 through MAX (see table A-2)
1A Range: 0 through 1 A
0.02A Range: 0 through 0.02 A
The 3A range covers the full current measurement capability of the instrument. The 1A range measures
currents up to a maximum of 1 A. This increases the mid-range current measurement sensitivity for
greater accuracy and resolution. The 0.02A range measures currents up to a maximum of 20 mA. This
increases the current measurement sensitivity for the best accuracy and resolution at the lowest range.
The value that you program with SENSe:CURRent:RANGe must be the maximum current that you
expect to measure. The instrument will select the range that gives the best resolution. The range
crossover values are 20 mA and 1A respectively. When queried, the returned value is the maximum dc
current that can be measured on the range that is presently set.
Command Syntax
SENSe:CURRent[:DC]:RANGe[:UPPer] <NRf+>
Parameters
0 through MAX (see table A-2)
Unit
A (amperes)
*RST Value
3A (high range)
Examples
SENS:CURR:RANG 4.0
Query Syntax
SENSe:CURRent:RANGe?
Returned Parameters
<NR3>