©
National Instruments Corp.
21
NI 9411 Operating Instructions and Specifications
Caution
Do
not
connect the NI 9411 to signals or
u
se
for meas
u
rements within Meas
u
rement Categories II,
III, or IV.
Hazardous Locations
U.S. (UL) .......................................... Class I, Division 2,
Gro
u
ps A, B, C, D, T4;
Class I, Zone 2,
AEx nC IIC T4
Canada (C-UL) ................................. Class I, Division 2,
Gro
u
ps A, B, C, D, T4;
Class I, Zone 2,
Ex nC IIC T4
E
u
rope (DEMKO)............................. Ex nC IIC T4
Safety Standards
This prod
u
ct meets the req
u
irements of the following standards of
safety for electrical eq
u
ipment for meas
u
rement, control, and
laboratory
u
se:
•
IEC 61010-1, EN 61010-1
•
UL 61010-1, CSA 61010-1
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