Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter 219
Information for Replacing 4268A, 4288A with E4981A
Functional Comparison between 4268A, 4288A, and E4981A
Trigger delay setup Can be set within
0 - 1 sec in steps of
100 µs.
Can be set within
0 - 1 sec in steps of
1 ms.
Can be set within
0 - 1 sec in steps of
1 ms.
Analog convergence waiting time setup Can be setup within
the range of 0 to 1 s
in steps of 100 µs.
N/A N/A
Correction OPEN correction ON/OFF OPEN correction,
SHORT correction,
and LOAD correction
can be turned
ON/OFF separately.
Entire correction
ON/OFF.
OPEN correction,
SHORT correction,
and LOAD correction
can be turned
ON/OFF separately.
SHORT correction ON/OFF Entire correction
ON/OFF.
LOAD correction ON/OFF LOAD correction can
be turned ON/OFF
separately.
OPEN correction data parameter format Selectable from G-B,
or Cp-G.
N/A Selectable from G-B,
or Cp-G.
SHORT correction data parameter format Selectable from R-X,
or Ls-Rs.
N/A Selectable from R-X,
or Ls-Rs.
Definition parameter of the value for LOAD
standard correction
Selectable from
Cp-D, Cp-Q, Cp-G,
Cp-Rp, Cs-D, Cs-Q,
or Cs-Rs.
Selectable from
Cp-D, Cp-Q, Cp-G,
Cp-Rp, Cs-D, Cs-Q,
or Cs-Rs.
Selectable from
Cp-D, Cp-Q, Cp-G,
Cp-Rp, Cs-D, Cs-Q,
or Cs-Rs.
Measurement Range on Load correction Auto Range can be
set ON/OFF when
LOAD measurement
is done.
N/A Auto Range can be
set ON/OFF when
LOAD measurement
is done
Correction
data
Measurement Measures the
OPEN/SHORT/LOAD
correction and turns
on the correction
function.
Measures the
OPEN/SHORT/LOAD
correction and turns
on the correction
function
Measures the
OPEN/SHORT/LOAD
correction and turns
on the correction
function
Setup and read out Can setup and
readout the
correction data by
both SCPI command
and front panel.
GPIB command is
available for readout
and setup.
GPIB command is
available for readout
and setup.
Offset correction Can be turned
ON/OFF for both the
primary and
secondary
parameters
simultaneously.
N/A Can be turned
ON/OFF for both the
primary and
secondary
parameters
simultaneously.
Table B-3 Functional comparison between 4268A, 4288A, and E4981A
Function E4981A 4268A 4288A