Ensure that the environment where you are using the PXIe-6591 meets specifications.

Caution Do not use the PXIe-6591 in a manner not specified in this document. Product misuse can result in a hazard. You can compromise the safety protection built into the product if the product is damaged in any way. If the product is damaged, return it to NI for repair.
Table 3. Environmental Characteristics
Operating ambient temperature 0 °C to 45 °C
Operating relative humidity 10% to 90%, noncondensing
Maximum altitude 2,000 m (800 mbar) (at 25 °C ambient temperature)
Pollution Degree 2

Indoor use only.

Note For complete specifications, refer to PXIe-6591 Specifications.