National Instruments PXI NI PXI-1052 - Manual (Page 39)

Chapter 3 Maintenance
© National Instruments Corporation 3-3 NI PXI-1052 User Manual
Cleaning and Replacing the Fan Filters
Note Power off the chassis and unplug the AC power cable before cleaning or removing
the fan filters.
Dirty fan filters can dramatically reduce the cooling performance of the
PXI-1052 chassis. Clean the filters whenever they become visibly dirty.
You can remove the chassis air filters from the rear of the chassis easily by
removing the filter retainer. To remove the filter retainer, loosen the retainer
screws. The filter cover and retainer are shown in Figure 1-2,
Rear View of
the PXI-1052 Chassis .
Clean the fan filters by washing them with a mild cleaning agent and then
vacuuming or blowing air through them. Rinse the filters with water and
allow them to dry before reinstalling them on the chassis.
You can purchase the same filter media in sheets, and make a filter
replacement.
Resetting the AC Mains Circuit Breaker
If the PXI-1052 encounters an over-current condition, the circuit breaker
on the rear panel trips to prevent damage to the chassis. Complete the
following steps to reset the circuit breaker.
1. Press the front panel power switch to the Off (Standby) position.
2. Disconnect the AC power cable.
3. Depress the circuit breaker to reset it.
4. Reconnect the AC power cable.
5. Press the power switch to the On position.
If the circuit breaker trips again, complete the following steps:
1. Press the front panel power switch to the Off (Standby) position.
2. Disconnect the AC power cable.
3. Remove all modules from the chassis.
4. Complete the procedure described in the Connecting to Power Source
section of Chapter 2, Installation and Configuration . If the system
power switch LED is not a steady green, contact NI through the
information given in Appendix C,
Technical Support and Professional
Services .