Configuration and Installation
Chapter 2
SCXI-1160 User Manual
2-4
© National Instruments Corporation
The following warnings contain important safety information concerning hazardous voltages.
Caution
!
Do not operate the module in an explosive atmosphere or where there may be
flammable gases or fumes.
Keep away from live circuits. Do not remove equipment covers or shields unless
you are trained to do so. If signal wires are connected to the module or terminal
block, dangerous voltages may exist even when the equipment is turned off. To
avoid dangerous electrical shock, do not perform procedures involving cover or
shield removal unless you are qualified to do so.
Do not operate damaged equipment. The safety protection features built into this
module can become impaired if the module becomes damaged in any way. If it is
damaged, turn the module off and do not use it until service-trained personnel can
check its safety. If necessary, return the module to National Instruments for
service and repair to ensure that its safety is not compromised.
Do not substitute parts or modify equipment. Because of the danger of
introducing additional hazards, do not install unauthorized parts or modify the
module. Return the module to National Instruments for service and repair to
ensure that its safety features are not compromised.
When using the terminal block with high common-mode voltages, your signal
wires must be insulated appropriately. National Instruments is not liable for any
damages or injuries resulting from inadequate signal wire insulation.
When connecting or disconnecting signal lines to the SCXI-1324 terminal block
screw terminals, the lines must be powered off. Potential differences between the
lines and the SCXI-1160 ground create a shock hazard while connecting the lines.
Connections, including power signals to ground and vice versa, that exceed any of
the maximum signal ratings on the SCXI-1160 can result in damage to any or all
of the boards connected to the SCXI chassis, to the host computer, and to the
SCXI-1160 module. National Instruments is not liable for any damages or
injuries resulting from incorrect signal connections.
If high voltages (
≥
42 Vrms) are present, the safety earth ground wire must be
connected to the safety earth ground solder lug on the SCXI-1324 terminal block
This provides protection against electric shock when the terminal block is not
connected to the chassis. To connect the safety earth ground to the strain-relief
tab, run an earth ground wire in the cable from the signal source to the terminal
block. National Instruments is not liable for any damages or injuries resulting
from inadequate safety earth ground connections.
Use this module only with a UL Listed SCXI chassis.