User`s guide

Agilent 4155C/4156C User’s Guide Vol.2, Edition 6 7-29
Measurement Units and Functions
Measurement Ranging Mode
Measurement Ranging Mode
Before executing measurements, you select a ranging mode from the following four
modes. You can set the ranging mode for each measurement unit.
• “Auto Ranging”
• “Limited Auto Ranging”
• “Compliance Range”
• “Fixed Range”
The following table lists the allowable measurement ranging modes for each
measurement mode.
Table 7-21 Allowable Measurement Ranging Modes
If you choose sweep measurement or sampling measurement (initial interval ≥ 2 ms)
and you do not set a ranging mode, auto ranging is set for voltage measurement
mode channel and limited auto (1nA) ranging is set for current measurement mode
channel automatically.
For sampling measurement (initial interval < 2 ms), an error occurs if fixed range is
not set.
Measurement Mode Ranging Mode
Sweep Measurement Auto, Limited Auto, Fixed
Sampling Measurement
(Initial Interval
a
≥ 2 ms)
a. You specify initial interval on the MEASURE: SAMPLING SETUP
screen.
Auto, Limited Auto, Fixed
Sampling Measurement
(Initial Interval
a
< 2 ms)
Fixed
Knob Sweep Compliance