National Instruments NI 9239, Руководство по началу работы

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Caution
For Division 2 and Zone 2 applications,
install the system in an enclosure rated to at least IP54
as defined by IEC/EN 60079-15.
Caution
For Division 2 and Zone 2 applications,
install a protection device between the input signal and
the input terminal. The device must clamp all voltage
sources to no more than 40% above their rated value or
within 84 VDC to earth ground if there is a transient
overvoltage condition.
Caution
For Division 2 and Zone 2 applications,
connected voltage sources must be within 60 VDC to
earth ground.
Caution
For Division 2 and Zone 2 applications,
connected signals must be within the following limits.
Capacitance 0.01 μF max
Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9239 has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO Certificate No. 07 ATEX 0626664X and is
NI 9239 Getting Started Guide | © National Instruments | 9