Keysight Truevolt Series Operating And Service Manual page 246

CONFigure:CURRent:{AC|DC} [{< range >|AUTO|MIN|MAX|DEF} [, {< resolution >|MIN|MAX|DEF}]]
Sets all measurement parameters and trigger parameters to their
urements. Also specifies the range and resolution.
<range>: {100 µA|1 mA|10 mA|100 mA|1 A|3 A|10 A}. Default: AUTO (autorange).
<resolution> (AC): optional and ignored; fixed at 6½ digits.
Resolution Table
<resolution> (DC): See
NPLC.
The default is equivalent to 10 PLC. Specify <resolution> in the meas-
urement's units (V, A, Hz, Ω, and so on).
Configure AC current measurements using the 1 A range. Make and read two measurements:
CONF:CURR:AC 1
SAMP:COUN 2
READ?
Typical Response: +8.54530000E-01,+8.54520000E-01
Configure DC current measurements using the 1 A range with 1 mA resolution. Then make a measurement
using an external trigger with positive slope (rising edge) and read the measurement:
CONF:CURR:DC 1,0.001
TRIG:SOUR EXT;SLOP POS
INIT
FETC?
Typical Response: +4.27150000E-01
Choosing the 10 A range automatically sets the [SENSe:]CURRent:{AC|DC}:TERMinals parameter to
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10 A, and setting the range to 3 A or less sets the [SENSe:]CURRent:{AC|DC}:TERMinals parameter to
3 A.
For the 34461A/65A/70A, when the Front/Rear switch is set to Front, setting the range to MAX
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selects the 10A range and the 10A terminals. When the Front/Rear switch is set to Rear, setting the
range to MAX selects the 3A range and 3A terminals.
You can let autoranging select the measurement range, or you can manually select a fixed range.
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Autoranging conveniently selects the range for each measurement based on the input signal. For fast-
est measurements, use manual ranging (autoranging may require additional time for range selection).
Autoranging (AUTO or DEFault), will generate an error if you specify a < resolution > because the instru-
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ment cannot accurately resolve the integration time (especially if the input continuously changes). If
your application requires autoranging, specify DEFault for the < resolution > or omit the < resolution >
altogether.
Autoranging goes down a range at less than 10% of range and up a range at greater than 120% of
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range.
If the input signal is greater than can be measured on the specified manual range, the instrument dis-
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plays the word Overload on front panel and returns "9.9E37" from the remote interface.
To control the measurement rate for AC measurements, change the trigger delay or AC filter band-
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Keysight True volt Series Operating and Service Guide
Parameter
Range, Resolution and
or
SCPI Programming Reference
default values for AC or DC current meas-
Typical Return
(none)
247