Ensure that the environment you are using the NI 5696 in meets the following specifications.

Operating ambient temperature (IEC 60068-2-1, IEC 60068-2-2) 0 °C to 55 °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.

Notice Clean the hardware with a soft, nonmetallic brush or lint free cloth. Make sure that the hardware is completely dry and free from contaminants before returning it to service.
Note Refer to the PXIe-5654 Specifications for complete NI 5696 specifications.