Ensure that the environment you are using the PXIe-6592 in meets the following specifications.

Operating ambient temperature (IEC-60068-2-1, IEC-60068-2-2) 0 °C to 45 °C
Operating relative humidity (IEC-60068-2-56) 10% to 90%, noncondensing
Maximum altitude 2,000 m (800 mbar) (at 25 °C ambient temperature)
Pollution Degree 2
Indoor use only.
Caution Clean the hardware with a soft, nonmetallic brush. Make sure that the hardware is completely dry and free from contaminants before returning it to service.
Note Refer to the PXIe-6592 Specifications for complete specifications.