National Instruments USB-621 Series User Manual page 177

Appendix C Technical Support and Professional Services
NI USB-621x User Manual
• Declaration of Conformity (DoC)—A DoC is our claim of
compliance with the Council of the European Communities using
the manufacturer's declaration of conformity. This system affords
the user protection for electromagnetic compatibility (EMC) and
product safety. You can obtain the DoC for your product by visiting
ni.com/certification
• Calibration Certificate—If your product supports calibration,
you can obtain the calibration certificate for your product at
ni.com/calibration
If you searched
ni.com
your local office or NI corporate headquarters. Phone numbers for our
worldwide offices are listed at the front of this manual. You also can visit
the Worldwide Offices section of
office Web sites, which provide up-to-date contact information, support
phone numbers, email addresses, and current events.
.
.
and could not find the answers you need, contact
ni.com/niglobal
C-2
to access the branch
ni.com