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User Maintenance
Wear Check
Measuring Impedance Shift
Measuring the impedance of the fixture with the upper and lower electrodes in
contact should check the electrode wear.
Normally, this check should be conducted under the following circumstances.
•
Required Tools
•
•
The measuring instrument's fixture compensation function should be set to
OFF. Also, other settings should be the same as those used for
Value
Procedure (Electrode Wear Check)
Step 1. Clean the electrodes as described in
Step 2. Set the measuring instrument and measure in the same way as for
"Acquisition Procedure (Electrode Wear Check Reference Value)" on page
Step 3. Record the Rs and Ls measured values as pass-fail in the
(Page
Step 4. If the result is unacceptable, replace both the upper and the lower electrode.
Procedure (Short Plate Wear Check)
Step 1. Clean the short plate as described in
Step 2. Set the measuring instrument and measure in the same way as for
"Acquisition Procedure (Short Plate Wear Check Reference Value)" on
page
Step 3. Enter the Rs and Ls measured values as pass-fail in the
(Page
Step 4. If the result is unacceptable, replace the short plate.
Keysight 16196A/B/C/D Parallel Electrode SMD Test Fixture
Once daily and before fixture compensation.
1.5-mm hex wrench (provided accessory)
Impedance measuring instrument (with 7-mm connector and calibrated)
Acquisition".
43).
40.
44).
"Cleaning" on page
34.
"Check Sheet"
"Cleaning" on page
34.
"Check Sheet"
"Reference
39.
41
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