Safety, Isolation voltages – National Instruments NI 9229E User Manual
Page 20
NI 9229E/9239E
20
ni.com
Torque for screw terminals ............... 0.22 to 0.25 N · m
(1.95 to 2.21 lb · in.)
Ferrules ............................................. 0.25 mm
2
to 0.5 mm
2
Weight............................................... 50 g (1.8 oz)
Safety
Isolation Voltages
Connect only voltages that are within the following limits.
Channel-to-channel
Continuous ................................. 250 V
rms
,
Measurement Category II,
(Basic insulation)
Withstand.................................... 1,390 V
rms
, verified by a 5 s
dielectric withstand test
Channel-to-earth ground
Continuous ................................. 250 V
rms
,
Measurement Category II,
(Double insulation)
Withstand.................................... 2,300 V
rms
, verified by a 5 s
dielectric withstand test