Keysight E4980A/AL Precision LCR Meter 61
Display Format
MEAS DISPLAY Page
Test Signal Level
The E4980A/AL’s test signal level can be set as the effective value (RMS value)
of a sine wave of the test frequency from the unit’s internal oscillator. You can
set either the oscillator voltage level or the oscillator current level. The output
impedance is 100 .
The E4980A/AL can measure a device using a constant voltage or current level
by using the automatic level control function. (The automatic level control
function (ALC field) can be set to ON from the MEAS SETUP page.) When a
constant voltage or current level measurement is performed, an asterisk mark
(*) appears at the end of the LEVEL display. For more information about the
automatic level control function, refer to “Automatic level control” on page 93.
Test signal level and resolution (Standard)
When option 001 (power/DC bias enhance) is not installed, the oscillator
voltage level can be set with a resolution listed in Table 3-10, or the oscillator
current level can be set with a resolution listed in Table 3-11.
The set value of the oscillator current level is the value set when the
measurement contacts (UNKNOWN terminals) are shorted together.
The set value of the oscillator voltage level is the value set when the
measurement contacts (UNKNOWN terminals) are opened.
Table 3-10 Oscillator voltage level and resolution (Std.)
Oscillator voltage level Resolution
0 Vrms to 200 mVrms 100 Vrms
200 mVrms to 500 mVrms 200 Vrms
500 mVrms to 1 Vrms 500 Vrms
1 Vrms to 2 Vrms 1 mVrms
Table 3-11 Oscillator current level and resolution (Std.)
Oscillator current level Resolution
0 Arms to 2 mArms 1 Arms
2 mArms to 5 mArms 2 Arms
5 mArms to 10 mArms 5 Arms
10 mArms to 20 mArms 10 Arms
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