HP WaterSkis E1312A manual VOLTageDCRATio?, Example Making DC Voltage Ratio Measurements

[:VOLTage[:DC]]:RATio?

MEASure[:VOLTage[:DC]]:RATio? [<range>MINMAXDEFAUTO [,<resolution>MINMAXDEF]] 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

Parameter Name	Parameter Type	Range of Values	Default Units
<range>	numeric	100mV1V10V100V300V	volts
		MINMAXDEFAUTO
<resolution>	numeric	resolution MINMAXDEF	volts

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: 100 μV.

110 Multimeter Command Reference Chapter 3