User`s manual

Comments • The [:DC] parameter is optional. Both of the following command statements
select the DC voltage function:
MEAS:VOLT:DC? or MEAS:VOLT?
•
To select a standard measurement range, specify range as the input signal’s
maximum expected voltage. The multimeter then selects the correct range.
• The AUTO and DEFault options for the range parameter have the same effect
(enable autorange). The
DEF option for the resolution parameter defaults the
integration time to 1 PLC.
• The MIN and MAX parameters select the minimum or maximum values for range
and resolution:
For range:
MIN = 0.113 V; MAX = 300 V.
For resolution:
MIN selects the best resolution (the smallest value from Table 5-1)
for the selected range.
MAX selects the worst resolution (the largest value from
Table 5-1) for the selected range.
• The channel list is of the form (@ccnn), (@ccnn,ccnn), or (@ccnn:ccnn), where
cc = card number and nn = channel number (105 is channel 05 of card number 1,
for example).
• To select autorange, specify AUTO (or DEF) for range or do not specify a value
for the parameter. 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? AUTO or MEAS:VOLT:DC? DEF (you cannot omit the range
parameter). This prevents the
MIN or MAX resolution from being interpreted as a
range setting.
• The fastest aperture time available when autoranging is 100 µs. In order to specify an
aperture time of 10 µs, you must select a fixed range.
Example Making DC Voltage Measurements
MEAS:VOLT:DC? 0.825,MAX,(@100) !Function: DC voltage;
range selected: 0.91 V;
MAX resolution: 61.035 µV; specify single
channel; trigger source is IMMediate by
default.
enter statement !Enter reading into computer.
149 Command Reference Chapter 5