Keysight Technologies 3458A Guide D'utilisation page 306

6 Command Reference
OCOMP
The OCOMP command enables or disables the offset compensated ohms
function.
Syntax
OCOMP [control]
control
The control parameter choices are:
control
parameter
OFF
ON
Power-on control = OFF.
Default control = ON.
Remarks
– With offset compensation enabled, the multimeter measures the external
– You can use offset compensated ohms on both 2-wire and 4-wire resistance
– The multimeter can only perform offset compensation on the 10 W through
306
Numeric
query equiv.
0
1
offset voltage (with the ohms current source shut off) before each resistance
reading and subtracts the offset from the following reading. This prevents the
offset voltage from affecting the resistance reading, but it doubles the time
required per reading.
measurements. When you have offset compensation enabled and change from
ohms to some other measurement function (DCV, ACV, etc.), offset
compensation is temporarily disabled. When you return to 2-wire or 4-wire
ohms, however, offset compensation is once again enabled.
100 kW ranges. If OCOMP is enabled when using the 1 MW through 1 GW
ranges, readings are made without offset compensation.
Description
Offset compensated ohms disabled.
Offset compensated ohms enabled.
Keysight 3458A User's Guide