NI 9403 Operating Instructions and Specifications 16 ni.com
equipment, limited-energy parts of equipment, circuits powered by
regulated low-voltage sources, and electronics.
Caution Do not connect the NI 9403 to signals or use for
measurements within Measurement CategoriesII,
III, orIV.
Safety Standards
This product is designed to meet the requirements of the following
standards of safety for electrical equipment for measurement,
control, and laboratory use:
• IEC 61010-1, EN 61010-1
• UL 61010-1, CSA 61010-1
Note For UL and other safety certifications, refer to the
product label or visit ni.com/certification, search
by module number or product line, and click the
appropriate link in the Certification column.