[SENSe:]CURRent:SWITch:MODE {FAST|CONTinuous}
[SENSe:]CURRent:SWITch:MODE?
Selects the FAST or CONTinuous range change mode for AC and DC current measurements.
Parameter Typical Return
{FAST|CONTinuous}. Default: CONT CONT
Configure DC current measurements on the 1 mA range. Specify CONTinuous mode. Make and read two
measurements:
CONF:CURR:DC .001
CURR:SWIT:MODE CONT
SAMP:COUN 2
READ?
Change the current range to 1 V (no open circuit occurs when changing range). Make and read two meas-
urements:
CONF:CURR:DC 1
SAMP:COUN 2
READ?
Typical Response: -5.28836573E-02,-5.01252821E-02
l Applies only to the 34465A and 34470A.
l The DMM measures AC or DC current by measuring the voltage drop across one of several internal cur-
rent shunts and then calculating the current. A different shunt is used depending on the selected cur-
rent range. In CONTinuous mode (default), when changing current ranges, the DMM switches a low
impedance in parallel with the first shunt before switching to the next shunt. This eliminates the
momentary open circuit when changing ranges, but can take up to three times longer to change
ranges than the FAST mode. In FAST mode, when a range change causes the DMM to switch from one
shunt to another, a momentary open circuit occurs on the current input terminals. In most cases, this
open circuit does not adversely affect your current measurements. However, if an open circuit
adversely affects your circuitry or measurements, you can use CONTinuous mode.
l The switch mode applies to the 3A current terminals only. The 10A terminals are always effectively in
FAST mode.
l This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset
(SYSTem:PRESet).
Keysight Truevolt Series Operating and Service Guide
333
SCPI Programming Reference
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