![background image](http://html1.mh-extra.com/html/national-instruments/ni-9214/ni-9214_operating-instructions-and-specifications_709228005.webp)
©
National Instruments Corp.
5
NI 9214 Operating Instructions and Specifications
Safety Guidelines for Hazardous Locations
The NI 9214 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 nA IIC T4, and
Ex nA IIC T4 hazardo
u
s locations; and nonhazardo
u
s locations
only. Follow these g
u
idelines if yo
u
are installing the NI 9214 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 and Zone 2.
Caution
For Division 2 and Zone 2 applications, install
the system in an enclos
u
re rated to at least IP 54 as
defined by IEC 60529 and EN 60529.
Caution
For Division 2 and Zone 2 applications,
connected signals m
u
st be within the following limit:
Capacitance .......................... 0.2
F max
NI_9214.fm Page 5 Monday, November 1, 2010 9:52 AM