Instruction manual

Chapter 5 113
Setting Measurement Conditions
Setting up dc resistance (Rdc) measurement
5. Setting Measurement
Conditions
Setting up dc resistance (R
dc
) measurement
Turning ON/OFF
Follow these steps to turn ON/OFF the R
dc
measurement.
Step 1. Press the [Prmtr] key on the front panel to display the Prmtrs softkey menu.
Step 2. Press the RDC MEAS [ ] key on the softkey menu to toggle ON/OFF the R
dc
measurement.
Turning ON/OFF offset cancel function
NOTE The offset cancel function is available with the firmware Rev.1.30 or greater.
The 4287A provides the offset cancel function that eliminates offset measurement error
(the measured R
dc
value when the measurement signal is not applied) during measurement
that occurs when dc current is superposed on the measurement cable used for
measurement.
When the offset cancel function is ON, the R
dc
measurement is performed in 2 ways, that
is, with the measurement signal applied and not applied. After that, the measured value is
calculated based on the value obtained by subtracting the measured value when the signal
is not applied from the one when the signal is applied.
NOTE To use the offset cancel function, turn ON the offset cancel function before measuring
calibration/compensation data.
Follow these steps to turn ON/OFF the offset cancel function.
Step 1. Press the [System] key on the front panel to display the System softkey menu.
Step 2. Press the SERVICE MENU key on the softkey menu to display the SERVICE MENU
softkey menu.
Step 3. Press the RDC OFS CANCEL [ ] key on the softkey menu to toggle ON/OFF the offset
cancel function.
Softkey label R
dc
measurement
RDC MEAS [ON] ON
RDC MEAS [OFF] OFF
Softkey label Offset cancel function
RDC OFS CANCEL [ON] ON
RDC OFS CANCEL [OFF] OFF