Keysight Technologies DAQ970A Programming Manual page 166

2 SCPI Programming
MEASure:CURRent:{AC|DC}? [{<range>|AUTO|MIN|MAX|DEF}, [{<resolution>|MIN|MAX|DEF},]]
(@<ch_list>)
Only supported on DAQM901A multiplexer module (channel 21 and 22).
Resets all measurement parameters on the specified channels to their default values. Then, configures the channels
for AC and DC current measurements and immediately sweeps through the specified channels one time (inde-
pendent of the present scan list). The results are sent directly to reading memory and the instrument's output buf-
fer. This command redefines the scan list.
Parameter
<range>
AC current: {100 μA | 1 mA | 10 mA | 100 mA | 1 A}
DC current: {1 μA | 10 μA | 100 μA | 1 mA | 10 mA | 100 mA | 1 A}
Default: AUTO
<resolution>
AC current: Optional and ignored; fixed at 6½ digits
DC current: 1 PLC
Configure AC current measurements using the 1 A range on channel 101:
MEAS:CURR:AC? 1 (@101)
Typical Response: +8.54430000E-01
– 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).
– Autoranging (AUTO or DEFault), will generate an error if you specify a <resolution> because the instrument can-
not 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 range.
– 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.
166
Typical return
(none)
Keysight DAQ970A/DAQ973A Programming Guide