MEASure:CURRent:{AC|DC}? [{<range>|AUTO|MIN|MAX|DEF} [,
{<resolution>|MIN|MAX|DEF}]]
Sets all measurement parameters and trigger parameters to their default values for AC or DC current measurements
and immediately triggers a measurement. The results are sent directly to the instrument's output buffer.
On the 34461A, use the [SENSe:]CURRent:{AC|DC}:TERMinals command to specify which current
terminals to use for the measurement.
Parameter Typical Return
<range>: {100 µA|1 mA|10 mA|100 mA|1 A|3 A|10 A}, default AUTO
(autorange)
+8.54430000E-01
<resolution> (AC): optional and ignored; fixed at 6½ digits.
<resolution> (DC): See Resolution Table or Range, Resolution and NPLC. The
default is equivalent to 10 PLC.
Specify <resolution> in the measurement's units (V, A, Hz, Ω, and so on).
Configure AC current measurements using the 1 A range. Then make and read one measurement:
MEAS:CURR:AC? 1
l 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 fastest measurements, use
manual ranging (autoranging may require additional time for range selection).
l Autoranging (AUTO or DEFault), will generate an error if you specify a <resolution> because the instrument
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.
l Autoranging goes down a range at less than 10% of range and up a range at greater than 120% of range.
l If the input signal is greater than can be measured on the specified manual range, the instrument displays the
word Overload on front panel and returns "9.9E37" from the remote interface.
MEASure:DIODe?
Sets all measurement parameters and trigger parameters to their default values for diode test measurements and
immediately triggers a measurement. The results are sent directly to the instrument's output buffer.
Parameter Typical Return
(none) +1.32130000E-01
Configure, make, and read a default diode measurement:
MEAS:DIOD?
l The range and resolution are fixed for diode tests: the range is 1 VDC (with a 1 mA current source output).
l The voltage is displayed on the front panel if it is between 0 and 5.05 V. The instrument beeps when the signal
transitions into the range between 0.3 and 0.8 V (unless beeper is disabled). If the signal exceeds 5.05 V, the front
panel shows "OPEN", and the value returned from SCPI is 9.9E37.
l The FETCh?, READ?, and MEASure:DIODe? queries return the measured voltage, regardless of its value.
Agilent Truevolt Series DMM Operating and Service Guide 167
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