Keysight E4981A - Functional Comparison between 4268 A, 4288 A, and E4981 A

218 Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter
Information for Replacing 4268A, 4288A with E4981A
Functional Comparison between 4268A, 4288A, and E4981A
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Functional Comparison between 4268A, 4288A, and E4981A
Table B-3 compares the functions of the 4268A, 4288A, and E4981A.
Table B-3 Functional comparison between 4268A, 4288A, and E4981A
Function E4981A 4268A 4288A
Measurement
condition
Reset Can be executed
using the front panel
or SCPI command.
Can be executed
using the front panel
or GPIB command.
Can be executed
using the front panel
or GPIB command.
Measurement parameter setup 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.
Measureme
nt signal
setup
Frequency Selectable from 120
Hz, 1 kHz or 1 MHz.
Selectable from 120
Hz or 1 kHz.
Selectable from
1 kHz or 1 MHz.
1 MHz frequency shift Can be changed to
+2%, –2%, +1%,
–1%, or 0% .
N/A Can be changed to
+2%, +1%, or –1% .
OSC Level Can be set up within
the range of 0.1 to
1 V in steps of
0.01 V.
Can be set up within
the range of 0.1 to
1 V in steps of 0.01
V.
Can be set up within
the range of 0.1 to
1 V in steps of 0.1 V.
Level monitor function AC Level monitor is
always ON.
Voltage value and
current value can be
monitored.
Voltage value and
current value can be
monitored.
Signal level compensation
(SLC)
Available at 120 Hz
or 1 kHz.
ALC is available N/A
Output mode Continuous,
Synchronous.
Continuous,
Synchronous.
N/A
Measurement range mode Selectable from the
auto range or hold
range.
Selectable from the
auto range or hold
range.
Selectable from the
auto range or hold
range.
Measureme
nt time
(integration
time)
Mode Selectable from
Short, Medium, or
Long (Using SCPI
command only).
Selectable from
Short, Medium, or
Long.
Selectable from
Short or Long.
Time Selectable from 1, 2,
4, 6, or 8.
N/A N/A
Averaging count Can be set up freely
within the range of 1
to 256.
Can be set up freely
within the range of 1
to 256.
Can be set up freely
within the range of 1
to 256.
Cable length setup Selectable from 0 m,
1 m, or 2 m.
Selectable from 0 m,
1 m, or 2 m.
Selectable from 0 m,
1 m, or 2 m.
Source 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 µs.
N/A