User`s guide

4 Operating the Power System
92 Series N6700 User’s Guide
If a power module has simultaneous measurements (see chapter 1,
“Model Differences”), you can enable BOTH voltage and current
measurements on the same output channel. Power modules that do
not have simultaneous measurement capability cannot externally log
both voltage and current.
Some power modules also have multiple measurement ranges.
Selecting a lower measurement range provides greater measurement
accuracy, provided that the measurement does not exceed the range.
To select lower measurement ranges, use:
Front Panel: SCPI Command:
Not Available. To set the 5 V measurement range:
SENS:ELOG:VOLT:RANG 5,(@1)
To set the 1 A measurement range:
SENS:ELOG:CURR:RANG 1,(@1)
Seamless Measurements
Seamless voltage and current measurement autoranging is available
on Agilent Models N6781A and N6782A. This enables a wide dynamic
measurement range with no data lost across ranges. Autoranging
does not include the 10 μA range, which must be selected manually.
Front Panel: SCPI Command:
Not Available To enable seamless elog autoranging:
SENS:ELOG:VOLT:RANG:AUTO ON,(@1)
SENS:ELOG:CURR:RANG:AUTO ON,(@1)
Specify the Integration Period
The integration period can be set from a minimum of 102.4
microseconds to a maximum of 60 seconds.
Front Panel: SCPI Command:
Not Available To set an integration period of 600 microseconds:
SENS:ELOG:PER 600E-6,(@1)
During the integration period, data log samples are averaged, and the
minimum and maximum values are tracked. At the end of each
integration period the average, minimum, and maximum values are
added to the internal FIFO buffer.
Although the absolute minimum integration period is 102.4
microseconds, the actual minimum varies as a function of the
number of parameters that are being logged. The actual minimum is
102.4 microseconds times the number of parameters being logged at
each interval. Note that you can measure up to 4 parameters with the
time interval resolution set to 20 microseconds, and up t o 8
parameters with the resolution set to 40 microseconds.