NI 9425 Operating Instructions and Specifications
4
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Caution
When mod
u
le terminals are hazardo
u
s voltage
LIVE (>42.4 V
pk
/60 VDC), yo
u
m
u
st ens
u
re that devices
and circ
u
its connected to the mod
u
le are properly
ins
u
lated from h
u
man contact.
Safety Guidelines for Hazardous Locations
The NI 9425 is s
u
itable for
u
se in Class I, Division 2, Gro
u
ps A, B,
C, D, T4 hazardo
u
s locations; Class I, Zone 2, AEx nC IIC T4, and
Ex nC IIC T4 hazardo
u
s locations; and nonhazardo
u
s locations
only. Follow these g
u
idelines if yo
u
are installing the NI 9425 in a
potentially explosive environment. Not following these g
u
idelines
may res
u
lt in serio
u
s inj
u
ry or death.
Caution
Do
not
disconnect I/O-side wires or connectors
u
nless power has been switched off or the area is known
to be nonhazardo
u
s.
Caution
Do
not
remove mod
u
les
u
nless power has been
switched off or the area is known to be nonhazardo
u
s.
Caution
S
u
bstit
u
tion of components may impair
s
u
itability for Class I, Division 2.