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NI CF-6004 U
s
er G
u
ide and Specification
s
Safety G
u
ideline
s
Caution
Operate the hardware only as described in these operating instructions.
The following section contains important safety information that you must follow when
installing and using the NI CF-6004.
Do not operate the NI CF-6004
in a manner not specified in this document. Misuse of the device
can result in a hazard. You can compromise the safety protection built into the device if the
device is damaged in any way. If the device is damaged, contact National Instruments for repair.
Do not substitute parts or modify the device except as described in this document. Use the device
only with the chassis, modules, accessories, and cables specified in the user guide. You must
have all covers and filler panels installed during operation of the device.
Do not operate the device in an explosive atmosphere or where there may be flammable gases
or fumes. If you must operate the device in such an environment, it must be in a suitably rated
enclosure.
If you need to clean the device, use a dry cloth. Make sure that the device is completely dry and
free from contaminants before returning it to service.
Operate the device only at or below Pollution Degree 2. Pollution is foreign matter in a solid,
liquid, or gaseous state that can reduce dielectric strength or surface resistivity. The following is
a description of pollution degrees:
•
Pollution Degree 1 means no pollution or only dry, nonconductive pollution occurs. The
pollution has no influence.
•
Pollution Degree 2 means that only nonconductive pollution occurs in most cases.
Occasionally, however, a temporary conductivity caused by condensation must be
expected.
•
Pollution Degree 3 means that conductive pollution occurs, or dry, nonconductive pollution
occurs that becomes conductive due to condensation.
You must insulate signal connections for the maximum voltage for which the device is rated. Do
not exceed the maximum ratings for the device. Do not install wiring while the device is live
with electrical signals. Do not remove or add connector blocks when power is connected to the
system. Avoid contact between your body and the connector block signal when hot swapping
modules. Remove power from signal lines before connecting them to or disconnecting them
from the device.
Operate the device at or below the Measurement Category I
1
. Measurement circuits are
subjected to working voltages
2
and transient stresses (overvoltage) from the circuit to which they
are connected during measurement or test. Measurement categories establish standard impulse
1
Measurement Category as defined in electrical safety standard IEC 61010-1. Measurement Category is
also referred to as Installation Category.
