© National Instruments | 1-3NI cDAQ-9181/9184/9188/9191 User ManualSafety GuidelinesCaution Do not operate the NI cDAQ-9181/9184/9188/9191 chassis in a mannernot specified in these operating instructions. Product misuse can result in a hazard.You can compromise the safety protection built into the product if the product isdamaged in any way. If the product is damaged, return it to National Instruments forrepair.Note Because some C Series modules may have more stringent certificationstandards than the NI cDAQ-9181/9184/9188/9191 chassis, the combined systemmay be limited by individual component restrictions. Refer to the specificationsdocument for your cDAQ chassis for more details.Hot Surface This icon denotes that the component may be hot. Touching thiscomponent may result in bodily injury.Electromagnetic Compatibility GuidelinesThis product was tested and complies with the regulatory requirements and limits forelectromagnetic compatibility (EMC) stated in the product specifications. These requirementsand limits provide reasonable protection against harmful interference when the product isoperated in the intended operational electromagnetic environment.This product is intended for use in industrial locations. However, harmful interference mayoccur in some installations or when the product is connected to a peripheral device or a testobject. To minimize interference with radio and television reception and prevent unacceptableperformance degradation, install and use this product in strict accordance with the instructionsin the product documentation.Furthermore, any modifications to the product not expressly approved by National Instrumentscould void your authority to operate it under your local regulatory rules.Caution To ensure the specified EMC performance, operate this product only withshielded cables and accessories.Caution To ensure the specified EMC performance, the length of any I/O cableconnected to a BNC PFI port must be no longer than 30 m (100 ft).Caution To ensure the specified EMC performance, do not connect the power inputto a DC mains supply or to any supply requiring a connecting cable longer than 3 m(10 ft). A DC mains supply is a local DC electricity supply network in theinfrastructure of a site or building.
