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Chapter 2
Using the Module
Overtemperature Detection
The PXIe-4480/4481 continuously monitors its ambient temperature. An overtemperature
condition is reported when the ambient temperature of the module exceeds a safe operating level.
The PXIe-4480/4481 treats overtemperature as a non-fatal error in that the module can still be
operated while in this condition. However, the integrity of the data being acquired may be
compromised while the PXIe-4480/4481 is displaying an overtemperature condition. If an
overtemperature condition is detected, the hardware will turn the Active LED red and set a flag
that can be queried by the user. Refer to the
Overtemperature Detection
topic of the
NI-DAQmx
Help
for more information on how to determine if an overtemperature condition has occurred.
Refer to your PXI Express chassis specific documentation and the
Maintain Forced-Air Cooling
Note to Users
to verify that the chassis spacing requirements and guidelines for adequate cooling
of the system are being followed.