©
National Instruments Corp.
17
NI 9265 Operating Instructions and Specifications
Safety
Maximum Voltage
1
Connect only voltages that are within the following limits.
Channel-to-COM or V
s
u
p
-to-COM ... ±40 V max
Isolation Voltages
Channel-to-channel........................... No isolation between
channels
Channel-to-earth gro
u
nd, V
s
u
p
-to-earth gro
u
nd,
or COM-to-earth gro
u
nd
Contin
u
o
u
s ................................. 250 V
rms
,
Meas
u
rement Category II
Withstand.................................... 2,300 V
rms
, verified by a 5 s
dielectric withstand test
Meas
u
rement Category II is for meas
u
rements performed on
circ
u
its directly connected to the electrical distrib
u
tion system.
This category refers to local-level electrical distrib
u
tion, s
u
ch as
1
The maxim
u
m voltage that can be applied between any channel or V
s
u
p
terminal
and a COM terminal witho
u
t damaging the mod
u
le or other devices.
