4-20 Electronic Calibration Modules Reference Guide
Use, Maintenance, and Care of the Devices
Making Connections
4-
3.
Hold the torque wrench lightly, at the end of the handle only (beyond the
groove). See
.
Figure 4-8
Using the Torque Wrench
4.
Carefully align the connectors. As you make the actual connection, be
sure the connectors align perfectly.
5.
Push the connectors straight together. Do not twist or screw the
connectors together. Engage the connector nut over the threads of the
other connector. Turn only the connector nut. Let the connector nut pull
the two connectors straight together.
Do not over tighten 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.
6.
Make sure the connectors are properly supported. Relieve any side
pressure on the connection from long or heavy devices or cables.
7.
Apply force downward to the wrench handle. This applies torque to the
connection through the wrench.
Do not hold the wrench so tightly that you push the handle straight down
along its length rather than pivoting it, otherwise you apply an unknown
amount of torque.
8.
Relieve any side pressure on the connection from long or heavy devices or
cables. This assures consistent torque while making the final connection.
9.
Hold the torque wrench with your thumb and index finger behind the
groove in the handle.
10.
Tighten the connection until the handle begins to break at the torque
setting (see technique in Figure 3-5 on page 3-19). It is not necessary to
fully break the handle of the torque wrench to reach the specified torque.
Reverse the order of the steps above to disconnect the device
You don’t have to fully break the handle of the torque wrench to reach the
specified torque; doing so can cause the handle to kick back and loosen
the connection. Any give at all in the handle is sufficient torque.
