©
National Instruments Corp.
3
NI 9426 Operating Instructions and Specifications
Safety Guidelines for Hazardous Voltages
If hazardo
u
s voltages are connected to the mod
u
le, take the
following preca
u
tions. A hazardo
u
s voltage is a voltage greater
than 42.4 V
pk
or 60 VDC to earth gro
u
nd.
Caution
Ens
u
re that hazardo
u
s voltage wiring is
performed only by q
u
alified personnel adhering to
local electrical standards.
Caution
Do
not
mix hazardo
u
s voltage circ
u
its and
h
u
man-accessible circ
u
its on the same mod
u
le.
Caution
Make s
u
re that devices and circ
u
its connected to
the mod
u
le are properly ins
u
lated from h
u
man contact.
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 9426 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
