Keysight Technologies N6705C Operating And Service Manual page 201

6 Advanced Source, Measurement, and Control
If a power module has simultaneous measurements (refer to Model Differences), you can enable
BOTH voltage and current measurements on the same output channel.
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 the low measurement range on channel 1, use:
SENS:VOLT:RANG 5,(@1)
To select the 1 A current range on channel 1:
SENS:CURR:RANG 1,(@1)
Seamless Measurements - For Keysight Models N6781A, N6782A, N6785A, and N6786A, you can
select seamless measurement autoranging, which enables a wide dynamic measurement range with
no data lost when transitioning across ranges. Seamless autoranging does not include the 10 μA
range, which must be selected manually. To enable seamless voltage or current autoranging on
channel 1:
SENS:VOLT:RANG:AUTO ON,(@1)
SENS:CURR:RANG:AUTO ON,(@1)
Adjust the Measurement Sample Rate
The following figure illustrates the relationship between measurement samples (or points), and the
time interval between samples in a typical measurement.
You can vary the measurement data sampling rate using the following commands. For example, to set
the time interval to 60µs with 4096 samples, use:
SENS:SWE:TINT 60E-6,(@1)
SENS:SWE:POIN 4096,(@1)
The maximum number of sample points that are available for all measurements is 512 K points (K =
1024). If you specify a voltage measurement with 500 K points on channel 1 for example, you will only
have 12 K points available for all other measurements.
Time interval values can range from 5.12 microseconds (for one parameter on Models N678xA SMU) to
40,000 seconds. Note that the shortest time interval (fastest speed) that can be specified depends on
Keysight N6705C Operating and Service Guide 201