CONFigure:CURRent:{AC|DC} [{<
range
>|AUTO|MIN|MAX|DEF} [, {<
resolution
>|MIN|MAX|DEF}]]
Sets all measurement parameters and trigger parameters to their
for AC or DC current meas-
urements. Also specifies the range and resolution.
Parameter
Typical Return
<
range
>: {100 µA|1 mA|10 mA|100 mA|1 A|3 A|10 A}. Default: AUTO (autorange).
(none)
<
resolution
> (AC): optional and ignored; fixed at 6½ digits.
<
resolution
> (DC): See
or
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
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Choosing the 10 A range automatically sets the [SENSe:]CURRent:{AC|DC}:TERMinals parameter to
10 A, and setting the range to 3 A or less sets the [SENSe:]CURRent:{AC|DC}:TERMinals parameter to
3 A.
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For the 34461A/65A/70A, when the Front/Rear switch is set to Front, setting the range to MAX
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.
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You can let autoranging select the measurement range, or you can manually select a fixed range.
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).
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Autoranging (AUTO or DEFault), will generate an error if you specify a <
resolution
> because the instru-
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.
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Autoranging goes down a range at less than 10% of range and up a range at greater than 120% of
range.
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If the input signal is greater than can be measured on the specified manual range, the instrument dis-
plays the word
Overload
on front panel and returns "9.9E37" from the remote interface.
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To control the measurement rate for AC measurements, change the trigger delay or AC filter band-
Keysight True
volt
Series Operating and Service Guide
247
SCPI Programming Reference
