Filter
Top Products
110 Multimeter Command Reference Chapter 3
[:VOLTage[:DC]]:RATio?
MEASure[:VOLTage[:DC]]:RATio? [<range>|MIN|MAX|DEF|AUTO
[,<
resolution>|MIN|MAX|DEF]] configures the multimeter for dc:dc ratio
measurements with the specified range and resolution. For ratio measurements, the
specified range applies to the signal connected to the HI and LO input terminals.
Autoranging is automatically selected for reference voltage measurements on the
“Sense” HI and LO terminals with a maximum voltage of 10V.
Parameters
Comments • To select a standard measurement range, specify range as the input signal’s
maximum expected voltage. The multimeter then selects the correct range to
accept the input.
• The AUTO or DEFault option for the range parameter enables autorange.
The
DEF option for the resolution parameter defaults the integration time to
10 PLC.
• The MIN and MAX parameters select the minimum or maximum values for
range and resolution:
For range:
MIN = 100mV; MAX = 300V.
For resolution:
MIN selects the best resolution (the smallest value) for the
selected range.
MAX selects the worst resolution (the largest value) for the
selected range.
• To select autorange, specify DEFault for range or do not specify a value for the
range and resolution parameters. In the autorange mode, the multimeter
samples the input signal before each measurement and selects the appropriate
range.
• To specify a MIN or MAX resolution while autoranging, you must specify
MEAS:VOLT:DC:RAT? DEF (you cannot omit the range parameter). This
prevents the
MIN or MAX resolution from being interpreted as a range setting
and the resulting command becomes
MEAS:VOLT:DC:RAT? DEF,MIN or
MEAS:VOLT:DC:RAT? DEF,MAX.
• Related Commands: FETCh?, INITiate, READ?
Example Making DC Voltage Ratio Measurements
MEAS:VOLT:DC:RAT? 0.825,MAX
Function: DC voltage; range selected: 1V;
MAX resolution: 100µV.
Parameter Name Parameter Type Range of Values Default Units
<
range>
numeric 100mV|1V|10V|100V|300V|
MIN|MAX|DEF|AUTO
volts
<resolution>
numeric
resolution|MIN|MAX|DEF
volts