BASIC OPERATION
60
four ranges 200V, 20V, 20V, 200mV.
Manual range
: For Source V/Measure I, Source
I/Measure V and Ohms measurement
configurations, a fixed range can be selected. Please
note that the highest available range depends on the
corresponding compliance value.
If inputing power exceeds compliance range(include
"real value" and "range"), or if the instrument
displays "overflow" information on a specific range,
select a higher range until the reading is displayed.
Use the lowest possible range without causing
overflow to ensure the best accuracy.
Auto range
: For Source V/Measure I, Source
I/Measure V and Ohms measurement
configurations, set Measure curr-range or Measure
volt-range to Auto to enable auto range. After
selecting the auto range, the instrument
automatically selects the best range for
measurement. Please note that the highest available
range depends on the corresponding compliance
setting.
If Measure curr-range or Measure vol-range option
selects Auto, the SDM cycle will repeatedly read the
measured value in the new range. Each SDM cycle
includes source delay time. For example, if source
delay time is programmed to 1s, in the case of
needing to change the range, the instrument needs
at least 2s to complete a measurement reading.
Auto range algorithm
: If a reading reaches 105% of
the current range, the instrument will increase 3
ranges, if it cannot increase 3 ranges, it will increase
to the highest range. After adjusting the range, take
a reading once again to decide whether to continue
to increase the range or determine the appropriate
