Keysight Technologies 85058V, User'S And Service Manual

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85058V 3-9
Use, Maintenance, and Care of the Devices
Gaging Connectors
NOTE Always hold a connector gage by the gage barrel, below the dial indicator. This
gives the best stability, and improves measurement accuracy. (Cradling the gage
in your hand or holding it by the dial applies stress to the gage plunger
mechanism through the dial indicator housing.)
1. Select the proper gage for your connector. The 1.85 mm connectors are gaged with the
same gages and in the same way as precision 2.4 mm connectors. (Refer to Table 6-3 on
page 6-7 for gage set part number.
2. Inspect and clean the gage, gage master, and device to be gaged. Refer to “Visual
Inspection” on page 3-3 and “Cleaning Connectors” on page 3-6 .
3. Zero the connector gage (refer to Figure 3-5 ):
a. While holding the gage by the barrel, and without turning the gage or the gage master,
screw the gage master connecting nut onto the male gage, just until you meet
resistance. Connect the nut finger tight. Do not overtighten.
b. Use the torque wrench recommended for use with this kit to tighten the connecting nut to
90 N-cm (8 in-lb). Refer to “Connections” on page 3-13 for more information.
c. Loosen the dial lock screw on the gage and rotate the gage dial so that the pointer
corresponds to the correction value noted on the gage master. Do not adjust the gage
dial to zero, unless the correction value on the gage master is zero.
d. Tighten the dial lock screw and remove the gage master.
e. Attach and torque the gage master to the gage once again to verify that the setting is
repeatable. Remove the gage master.
4. Gage the device connector (refer to Figure 3-5 ):
a. While holding the gage by the barrel, and without turning the gage or the device, screw
the connecting nut of the device being measured onto the gage, just until you meet
resistance. Connect the nut finger-tight. Do not overtighten.
b. Use the torque wrench recommended for use with this kit to tighten the connecting nut to
90 N-cm (8 in-lb). Refer to “Connections” on page 3-13 for more information.
c. Gently tap the barrel of the gage with your finger to settle the gage reading.
d. Read the gage indicator dial. Read
only the black  signs;  not the red  signs.
For maximum accuracy, measure the connector a minimum of three times and take an
average of the readings. After each measurement, rotate the gage a quarter-turn to
reduce measurement variations that result from the gage or the connector face not being
exactly perpendicular to the center axis.
e. Compare the average reading with the observed pin depth limits in Table 2-2 on
page 2-4 .