User`s manual

<resolution>
numeric
resolution (see Table 5-1) |
DEF | MIN | MAX
volts
<channel_list>
numeric Refer to the multiplexer user’s manual for
a list of channels available.
none
Comments • 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 = 0.0795 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
CONF:VOLT:AC AUTO or CONF:VOLT:AC 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 AC Voltage Measurements
CONF:VOLT:AC 0.54,MAX,(@100:103) !Function: AC volts;
range selected: 0.63V;
MAX resolution: 61.035
µ
V; specify
channel list.
TRIG:COUN 3 !Scan channel list 3 times (take 4 readings
per trigger); trigger source is IMMediate by
default.
READ? !Place multimeter in wait-for-trigger state and
make measurements; send readings to output
buffer.
enter statement !Enter readings into computer.
131 Command Reference Chapter 5