Keysight Technologies 85054B User's And Service Manual

3-16 85054BUse, Maintenance, and Care of the DevicesConnectionsConnectionsGood connections require a skilled operator. The most common cause of measurement error isbad connections. The following procedures illustrate how to make good connections.How to Make a ConnectionPreliminary Connection1. Ground yourself and all devices. Wear a grounded wrist strap and work on a grounded,conductive table mat. Refer to “Electrostatic Discharge” on page 3-2 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 observed pin depthvalues in Table 2-2 on page 2-4. Refer to “Gaging Connectors” on page 3-6.5. Carefully align the connectors. The male connector center pin must slip concentrically intothe contact finger of the female connector.6. Push the connectors straight together.CAUTION Do not turn the device body. Only turn the connector nut. Damage to the centerconductor can occur if the device body is twisted.Do not twist or screw the connectors together. As the center conductors mate, there isusually 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 matingsurfaces is sufficient. Very light finger pressure is enough to accomplish this.8. Make sure the connectors are properly supported. Relieve any side pressure on theconnection from long or heavy devices or cables.Final Connection Using a Torque WrenchUse a torque wrench to make a final connection. Table 3-1 provides information about thetorque wrench recommended for use with this calibration kit. A torque wrench is not included inthe calibration kit. Refer to Chapter 6 for part number and ordering information.Using a torque wrench guarantees that the connection is not too tight, preventing possibleTable 3-1 Torque Wrench InformationConnector Type Torque Setting Torque ToleranceType-N 135 N-cm (12 in-lb) 13.5 N-cm (1.2 in-lb)