©
National Instruments Corp.
21
NI 9472/9474
Ferr
u
les ............................................. 0.25 mm
2
to 2.5 mm
2
Weight
NI 9472/9474 with
screw terminal ............................ 150 g (5.3 oz)
NI 9472 with DSUB ................... 145 g (5.1 oz)
Safety
NI 9472/9474 with Screw Terminal Safety Voltages
Connect only voltages that are within the following limits.
Channel-to-COM .............................. 30 VDC max
Isolation
Channel-to-channel .................... None
Channel-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.
