Installation and Operation
Chapter 5
SC-206X Series User Manual
5-10
© National Instruments Corporation
When using the device with high common-mode voltages, you MUST insulate
your signal wires for the highest input voltage. National instruments is NOT
liable for any damages or injuries resulting from inadequate signal wire
insulation. Use only 26-14 AWG wire with a voltage rating of 300 V and 60˚ C
for controlling 250 V. Prepare your signal wire by stripping the insulation no
more than 7 mm.
K
EEP AWAY FROM LIVE CIRCUITS.
When connecting or disconnecting signal
lines to the terminal block screw terminals, make sure the lines are powered off.
Potential differences between the lines and ground create a shock hazard while
you connect the lines.
Connect the signal wires to the screw terminals by inserting the stripped end of
the wire fully into the terminals. Tighten the terminals to a torque of 5-7 in.-lb.
Connections, including power signals to ground and vice versa, that exceed any
of the maximum signal ratings on the device can create a shock or fire hazard
or can damage any or all of the boards connected to the device and the host
computer, and the device itself. National Instruments is
NOT LIABLE FOR ANY
DAMAGES OR INJURIES
resulting from incorrect signal connections.
Clean devices and terminal blocks by brushing off light dust with a soft,
nonmetallic brush. Remove other contaminants with deionized water and a
stiff nonmetallic brush. The unit must be completely dry and free from
contaminants before returning to service.
