Instruction manual

Chapter 6 133
Calibration and Compensation
Calibration and Compensation Procedures Using Dedicated Test Fixture
6. Calibration and
Compensation
NOTE If you want to use the open state of the test fixture instead of connecting the open standard,
set the open state according to the Operation Manual of the test fixture.
Step 2. Click the OPEN button in the calibration window and measure the open calibration data.
6. How to measure short calibration data
Measure the short calibration data as follows:
Step 1. Connect the short standard to the DUT connection terminal of the test fixture.
NOTE If you want to use the short state of the test fixture instead of connecting the short standard,
set the short state according to the Operation Manual of the test fixture.
Step 2. Click the SHORT button in the calibration window and measure the short calibration data.
7. How to measure load calibration data
Measure the load calibration data as follows:
Step 1. Connect the load standard to the DUT connection terminal of the test fixture.
Step 2. Click the LOAD button in the calibration window and measure the load calibration data.
8. How to measure DC open/short/load calibration data
When you want to use the dedicated working standard to measure DC resistance (Rdc),
follow these steps to execute additional DC open/short/load calibration.
Step 1. Connect the DC open standard to the DUT connection terminal of the test fixture.
Step 2. Click the DC OPEN button in the calibration window and measure the DC open calibration
data.
Step 3. Connect the DC short standard to the DUT connection terminal of the test fixture.
Step 4. Click the DC SHORT button in the calibration window and measure the DC short
calibration data.
Step 5. Connect the load standard to the DUT connection terminal of the test fixture.
Step 6. Click the DC LOAD button in the calibration window and measure the DC load calibration
data.
9. Specifying creation of automatic setting file for when power is turned ON
The setting conditions of the 4287A, including calibration data and compensation data, can
be automatically stored for reuse in a file named “autorec.sta” in the internal nonvolatile
memory. To use this function, click the
Auto Recall check box upon completion of
calibration so that the check mark (
√) appears.
NOTE When the 4287A is turned ON, it searches the internal nonvolatile memory for a file called
“autorec.sta,” and if it is found, the setting conditions (including calibration and
compensation data) stored in the file are automatically recalled.