©
National Instruments Corp.
15
NI 9481 Operating Instructions and Specifications
that provided by a standard wall o
u
tlet, for example, 115 V for U.S.
or 230 V for E
u
rope.
Caution
Do
not
connect the NI 9481 to signals or
u
se
for meas
u
rements within Meas
u
rement Categories III
or IV.
Isolation
Channel-to-channel
Contin
u
o
u
s ........................... 250 V
rms
Withstand ............................. 1,400 V
rms
, verified by a 5 s
dielectric withstand test
Channel-to-earth gro
u
nd
Contin
u
o
u
s ........................... 250 V
rms
Withstand ............................. 2,300 V
rms
, verified by a 5 s
dielectric withstand test
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
