Keysight Technologies 85058E User's And Service Manual

Contents

3-12 85058B/EUse, Maintenance, and Care of the DevicesGaging ConnectorsGaging Female 1.85 mm ConnectorsNOTE Always hold a connector gage by the gage barrel, below the dial indicator. Thisgives the best stability, and improves measurement accuracy. (Cradling the gagein your hand or holding it by the dial applies stress to the gage plungermechanism through the dial indicator housing.)1. Select the proper gage for your connector. The 1.85 mm connectors are gaged with thesame gages and in the same way as precision 2.4 mm connectors. Refer to Table 6-3 onpage 6-8 for gage part numbers.2. Inspect and clean the gage, gage master, and device to be gaged. Refer to “VisualInspection” and “Cleaning Connectors” earlier in this chapter.3. Zero the connector gage (refer to Figure 3-6):a. While holding the gage by the barrel, and without turning the gage or the device, screwthe female gage connecting nut onto the female gage master, just until you meetresistance. Connect the nut finger-tight. Do not overtighten.b. Use the torque wrench recommended for use with the kit to tighten the connecting nut to90 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 thezero set knob until the gage pointer lines up exactly with zero.d. Remove the gage master.4. Gage the device connector (refer to Figure 3-6):a. While holding the gage by the barrel, and without turning the gage or the device, screwthe female gage connecting nut onto the female device being measured, just until youmeet 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 to90 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 anaverage of the readings. Use different orientations of the gage within the connector. Aftereach measurement, rotate the gage a quarter-turn to reduce measurement variationsthat result from the gage or the connector face not being exactly perpendicular to thecenter axis.e. Compare the average reading with the observed pin depth limits in “Pin Depth Limit” onpage 2-4.