Keysight E4981A - Selecting Measurement Range; Setting Measurement Range to be Automatically Selected (Auto Ranging)

56 Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter
Setting up Measurement Conditions and Display
Selecting Measurement Range
4-
Selecting Measurement Range
Setting measurement range to be automatically selected (auto ranging)
Two modes can be used to select the measurement range as shown in Table
4-2. To enable automatic selection, select the auto range mode.
Table 4-2 Measurement range mode
Mode Function overview Ad vantage Disad vantage
Auto range
(auto selection)
The instrument
automatically
selects a proper
measurement
range depending
on the value of the
DUT and performs
measurement.
You do not need to
select the
measurement
range.
The measurement
time is longer due
to the ranging time.
Hold
(fixed) range
(manual selection)
Measurement is
performed with a
fixed measurement
range regardless of
the value of the
DUT.
No ranging time is
required.
You need to select a
proper range
depending on the
value of the DUT.