Keysight Technologies 85055A, Руководство пользователя и сервисное руководство

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3-16 Keysight 85055A User’s and Service Guide
Use, Maintenance, and Care of the Devices
Connections
3-
Connections
Good connections require a skilled operator. The most common cause of
measurement error is bad connections. The following procedures illustrate
how to make good connections.
How to Make a Connection
Preliminary Connection
1. Ground yourself and all devices. Wear a grounded wrist strap and work on
a grounded, conductive table mat. Refer to “Electrostatic Discharge” on
page 3-1 for ESD precautions.
2. Visually inspect the connectors. Refer to “Visual Inspection” on page 3-3 .
3. If necessary, clean the connectors. Refer to “Cleaning Connectors” on
page 3-4 .
4. Use a connector gage to verify that all center conductors are within the
pin depth values listed in Table 2-2 on page 2-4 . Refer to “Gaging
Connectors” on page 3-7 .
5. Carefully align the connectors. The male connector center pin must slip
concentrically into the contact finger of the female connector.
6. Push the connectors straight together and tighten the connector nut
finger tight.
Do not twist or screw the connectors together. As the center conductors
mate, there is usually a slight resistance.
7. The preliminary connection is tight enough when the mating plane
surfaces make uniform, light contact. Do not overtighten this connection.
A connection in which the outer conductors make gentle contact at all
points on both mating surfaces is sufficient. Very light finger pressure is
enough to accomplish this.
8. Make sure the connectors are properly supported. Relieve any side
pressure on the connection from long or heavy devices or cables.
Do
not
turn the device body. Turn only the connector nut. Damage to the
center conductor can occur if the device body is rotated.