Making Connections; Using A Torque Wrench - HP 85091A Reference Manual

Gauging and Making Connections

Making Connections

Making Connections
Good connections are essential for accurate measurements. Operators
must be very precise when making connections to ensure that accurate
measurements are taken.
This procedure assumes that you have taken the necessary ESD
CAUTION
precautions, and that you have already cleaned and inspected (visually
and mechanically) the connectors. Refer to
(ESD)" on page 3-3
You can damage the RF ECal modules if you apply excessive torque to
CAUTION
the RF connectors. Do not exceed the recommended specifications listed
on
disconnecting RF ECal modules.

Using a Torque Wrench

1. Hand tighten the connection to be torqued. Be sure to keep the
Rotating connectors relative to each other during the
CAUTION
connect/disconnect cycle is the leading cause of connector wear.
2. Hold the torque wrench with your thumb and index finger behind
3. Tighten the connection until the handle begins to break loose. It is
Reverse the order to disconnect.
3-18
for a description of ESD precautions.
"Torque Wrench Information" on page 2-16
connectors from rotating relative to each other. Turn the coupling
nut only.
the groove in the handle.
not necessary to fully break the handle of the torque wrench to reach
the specified torque (see
"Electrostatic Discharge
when connecting and
Figure 3-5).
Chapter 3