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Calibration
Measurement Calibration
8−6
Remote Calibration
Remote calibration establishes a common zero reference for the
WireScope 350 and its associated DualRemote 350, before any
end-to-end measurements are taken.
You must perform a remote calibration if you use your WireScope 350
with a different DualRemote 350, or if you upgrade the software in either
the WireScope or DualRemote. The WireScope stores the serial number
information of the DualRemote that it has been calibrated with. Before
each measurement, the WireScope checks the serial numbers of the
DualRemote to which it is connected. If the WireScope does not have
remote calibration data stored for the detected DualRemote, a warning
appears, asking you to calibrate the DualRemote.
Agilent Technologies recommends running the remote calibration once a
day, at the beginning of a testing session.
Environmental Calibration (Internal)
Environmental calibration compensates for the effects of ambient
temperature and voltage variations. The WireScope 350 and DualRemote
350 use internal calibration paths to connect the signal source and
measurement circuits, establishing a local calibration reference before
each measurement. No operator involvement is required.
Field Verification of Baseline Accuracy
The Self-Test probe (part # N2594A-015) can be used in the field to verify
the baseline accuracy of a WireScope 350 or DualRemote 350. The
Self-Test probe uses the SmartProbe port interface to automate the
required setups for this function.
To run a Self Test on the WireScope 350:
1 Make sure that the WireScope 350 display displays the main menu.
2 Insert the Self-Test probe in the SmartProbe port
3 Press the OK key. A PASS or FAIL screen displays.
The PASS screen indicates that the WireScope's baseline calibration data is
valid.
If a FAIL screen displays, contact Agilent Technical Support (see
Technical Support, on page 1-21).
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