CompactRIO cRIO-9066/cRIO-9067 Operating Instructions
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© National Instruments
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23
Safety Voltages
Connect only voltages that are within these limits.
V terminal to C terminal................................... 30 V
DC
max,
Measurement Category I
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.
Caution
Do not connect the system to signals or use for measurements within
Measurement Categories II, III, or IV.
Note
Measurement Categories CAT I and CAT O (Other) are equivalent. These test
and measurement circuits are not intended for direct connection to the MAINS
building installations of Measurement Categories CAT II, CAT III, or CAT IV.
Safety and Hazardous Locations Standards
This product meets the requirements of the following standards of safety for electrical equipment
for measurement, control, and laboratory use:
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IEC 61010-1. EN 61010-1
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UL 61010-1, CSA 61010-1
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EN 60079-0:2012, EN 60079-15:2010
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IEC 60079-0: Ed 6, IEC 60079-15: Ed 4
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UL 60079-0: Ed 5, UL 60079-15: Ed 3
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CSA 60079-0:2011, CSA 60079-15:2012
Note
For UL and other safety certifications, refer to the product label or the
section.
Electromagnetic Compatibility
This product meets the requirements of the following EMC standards for electrical equipment
for measurement, control, and laboratory use:
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EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
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EN 55011 (CISPR 11): Group 1, Class A emissions
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EN 55022 (CISPR 22): Class A emissions
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EN 55024 (CISPR 24): Immunity
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AS/NZS CISPR 11: Group 1, Class A emissions
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AS/NZS CISPR 22: Class A emissions