Gaging The Airline - Agilent Technologies 85051B User's And Service Manual

Use, Maintenance, and Care of the Devices
Gaging Connectors

Gaging the Airline

The airline center and outer conductor in this kit are measured and matched for length at the factory using
special fixtures and gages. Because the gages supplied in the calibration kits do not have the accuracy of
the factory gages, use the following procedure for very general results only. Perform this procedure
whenever you suspect that a center conductor has been switched with another airline or that a device has
been damaged.
Attach the airline to the gage and short circuit
1. Inspect and, if required, clean the short, airline, and gage mating surfaces and threads.
2. Attach the short circuit from your calibration kit to the gage. Torque the connection to 136 N-cm, (12
in-lb). Refer to Figure
Figure 3-4 Gaging the Short Circuit
3. Gently tap the gage to settle the meter movement.
4. Adjust the dial on the gage to read flush (0.000) with the short circuit connected.
5. Remove the short circuit from the gage and attach the short circuit to the outer conductor of the airline.
Refer to Figure 3-5.
6. Remove the centering pins from the airline center conductor and slide the centering beads from the gage
kit onto the airline center conductor.
NOTE This procedure refers to the "A" end of the airline as the end closest to the "A" in the Agilent
logo on the label of the outer conductor. The other end will be referred to as the "B" end. See
Figure 3-8 on page
7. Insert the center conductor into the outer conductor so that the mark on the center conductor is closest
to the "A" end of the outer conductor. Do not let the center conductor scrape the edge of the outer
conductor or damage may result.
8. Attach the gage to the other end of the airline. Refer to
3-10
3-4.
3-15.
Figure 3-5.
85051B