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National Instruments Corporation

Chassis Fan Replacement Guide

Figure 5 shows the parts you must remove to access the fan. Refer to the
following steps for installation and removal instructions.

Figure 5.

PXI and PXI Express Chassis Part Locations (Chassis Shown Upside Down)

Washers (x3 each)

Fan Screw (x4)

Fan Access Panel Screw

Fan Access Panel

Thermistor

Thermistor Clip

Fan Guard Screen

Fan Guard

Содержание PXI Series

Страница 1: ...tter revision Before replacing the fan be sure to check the model and assembly numbers on the back of your PXI chassis Replace the fan only if the model and assembly numbers are on the following list...

Страница 2: ...embly numbers in parentheses The x denotes the assembly letter revision Before replacing the fan be sure to check the model and assembly numbers on the back of your PXI chassis Replace the fan only if...

Страница 3: ...wn Complete the following steps to replace the fan refer to the previous figure for parts locations 1 Locate the fan access panel on the bottom of the chassis Remove the access panel screw and the acc...

Страница 4: ...hassis Fan Replacement Guide 4 ni com 4 Disconnect the fan cable from the inline connector The connector is shown in Figure 2 Figure 2 Fan Cable Inline Connector 1 Fan 2 Fan Cable Inline Connector 2 1...

Страница 5: ...r flow direction is into the chassis so the plastic grill and label on the fan should face toward the PXI card cage Place the screen below the fan see Figure 1 for screen location Ensure that the loos...

Страница 6: ...he thermistor wire as shown in Figure 4 before replacing the fan access panel 8 Place the fan access panel over the opening Insert and tighten the access panel screw to between 3 0 lb in minimum torqu...

Страница 7: ...ss the fan Refer to the following steps for installation and removal instructions Figure 5 PXI and PXI Express Chassis Part Locations Chassis Shown Upside Down 1 Washers x3 each 2 Fan Screw x4 3 Fan A...

Страница 8: ...Figure 5 that fasten the fan Be careful not to lose the screws or washers If you lose a screw replace it with an M3 0 5 35 mm pan head Phillips screw 3 Remove the thermistor and fan guards 4 Remove t...

Страница 9: ...square slot oriented as shown in Figure 7 The fan flow direction is into the chassis so the plastic grill on the fan should face toward the PXI card cage Figure 7 Square Slot on Fan Housing 7 Place th...

Страница 10: ...hole and orient the thermistor as shown in Figure 8 Figure 8 Thermistor Location and Orientation 9 Tighten the screws to between 5 7 lb in minimum torque and 6 7 lb in maximum torque 10 Place the fan...

Страница 11: ...heir respective companies For patents covering National Instruments products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the Nation...