Keysight Technologies 85058B, User'S And Service Manual

Page: 48 / 79

3-10 85058B/E
Use, Maintenance, and Care of the Devices
Gaging Connectors
Gaging Procedures
Gaging Male 1.85 mm 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 6-8 for gage part numbers.
2. Inspect and clean the gage, gage master, and device to be gaged. Refer to “Visual
Inspection” and “Cleaning Connectors” earlier in this chapter.
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 device, screw
the male 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 the kit to tighten the connecting nut to
90 N-cm (8 in-lb). Refer to “Connections” on page 3-14 for more information.
c. As you watch the gage pointer, gently tap the barrel of the gage to settle the reading.
The gage pointer should line up exactly with the zero mark on the gage. If not, adjust the
zero set knob until the gage pointer lines up exactly with zero.
d. 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 male device being measured 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 the kit to tighten the connecting nut to
90 N-cm (8 in-lb). Refer to “Connections” on page 3-14 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 .