Safety Voltages
Notice
Connect only voltages that are below the limits described in the
specifications document for the FlexRIO module you will connect to the SCB-12.
You can search for specification documents by product name at
Notice
When you have finished using the SCB-12, power off any external signals
connected to the SCB-12 before you power off your computer.
Measurement Category I
Caution
Do not connect the product to signals or use for measurements within
Measurement Categories II, III, or IV.
Attention
Ne pas connecter le produit à des signaux dans les catégories de mesure
II, III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.
Measurement Category I is for measurements performed on circuits not directly connected to
the electrical distribution system referred to as
MAINS
voltage. MAINS is a hazardous live
electrical supply system that powers equipment. This category is for measurements of voltages
from specially protected secondary circuits. Such voltage measurements include signal levels,
special equipment, limited-energy parts of equipment, circuits powered by regulated low-
voltage sources, and electronics.
Note
Measurement Categories CAT I and CAT O are equivalent. These test and
measurement circuits are for other circuits not intended for direct connection to the
MAINS building installations of Measurement Categories CAT II, CAT III, or
CAT IV.
Safety Standards
This product is designed to meet the requirements of the following electrical equipment safety
standards for measurement, control, and laboratory use:
•
IEC 61010-1, EN 61010-1
•
UL 61010-1, CSA C22.2 No. 61010-1
EMC Guidelines
This product was tested and complies with the regulatory requirements and limits for
electromagnetic compatibility (EMC) stated in the product specifications. These requirements
and limits provide reasonable protection against harmful interference when the product is
operated in the intended operational electromagnetic environment.
This product is intended for use in industrial locations. However, harmful interference may
occur in some installations, when the product is connected to a peripheral device or test object,
or if the product is used in residential or commercial areas. To minimize interference with
SCB-12 User Guide
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© National Instruments Corporation
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