Agilent Technologies 1141A, Руководство пользователя и сервисное руководство

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16 1141A and 1142A User’s Guide
1 Operating the Probe
Using the Accessories
NOTE
Because of the close tolerances between the probe tip caps and probe tips, it will
be difficult to separate the probe tips and caps once the probe tips have been
soldered.
Ground Leads
The circular end of the ground lead fits over the screw on the top
side of the probe.
Extension Leads
The extension leads provide a flexible connection between circuitry
and the probe. To provide a male connection to other circuitry,
connect the extension lead over the probe tips. To provide a female
connection, remove the probe tip caps and probe tips and connect
the extension leads to the probe.
NOTE
Use extension leads and similar connection accessories carefully. Extension leads
compromise the high-frequency specifications of the probe. CMRR is particularly
sensitive to unbalanced input parameters.
To prevent pickup of stray fields when you use extension lead,
either the ones supplied with the 1141A or others, dress them
carefully as follows:
■
Connect the leads at right angles to the circuitry under test.
■
Keep the leads as parallel as possible before they connect to the
probe.
Mini-Grabbers
Mini- grabbers can be attached to the probe or adapter through the
extension leads.
1
Remove the probe tip caps and tips.
2
Attach the extension leads to the probe or adapter.
3
Attach the mini- grabbers to the extension leads.
Circuit Connector Posts
These 0.025- inch square posts can be used to connect either
directly to the probe or to the extension leads. Solder the posts
directly into your circuitry or use them to make extension leads
that plug into the inputs of the probe or adapters.
Shielded Signal Leads
The shielded signal leads allow connection to points in a circuit
that are up to 10 inches apart. The leads are shielded to within
approximately 1/2 inch of the end of the lead so they minimize
pick- up due to stray fields from adjacent circuitry.