Specifications

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3. Frequency, DC Bias, and Operating Temperature/Humidity
Each of the Agilent accessories has its own specific operating range. Any measurement performed outside this range can
increase residual errors and can cause problems. Be sure that your measurement environment fits the accessory’s specific
operating range. In the case of humidity, Agilent’s accessories can operate at a relative humidity of 95% or less at 40°C.
(These same requirements apply to most LCR Meters and Impedance Analyzers.) When the ambient temperature is not
approximately 40°C, use an accessory that has no condensation on its surface.
4. DUT (Device Under Test) Dimensions
The DUT can vary from chip components, axial/radial leads, or ICs to general electrical materials. Select a test fixture/lead
that is suitable for the shape and size of your components or materials.
5. Open & Short Repeatability and Proportional Error
Since a test fixture induces an additional error when measuring, the total measurement error is the sum of the measure-
ment instrument’s measurement accuracy and the fixture’s additional error. Generally, a test fixture’s additional error con-
sists of three terms: open repeatability, short repeatability and proportional error. Open and short repeatability exhibit the
error factors of the open and short residual impedances which affect the measurements of extremely high and low imped-
ances respectively. Proportional error exhibits the error factor, which is proportional to the value of the impedance being
measured. For more details on this subject, please refer to the Appendix.
6. Furnished Accessories
Each test fixture is shipped with a manual and various other accessories needed for measuring. For example, the 42941A
impedance probe kit is furnished with a pin probe, an adapter (BNC-SMB), 3 spare pins, a carrying case and an operation
and service manual.
Tips for Selecting Appropriate Accessories
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