National Instruments NI-9238, Начало работы

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Caution
The system shall be mounted in an ATEX/IECEx-certified
enclosure with a minimum ingress protection rating of at least IP54 as
defined in IEC/EN 60079-15.
Caution
The enclosure must have a door or cover accessible only by the
use of a tool.
Electromagnetic Compatibility Guidelines
This product was tested and complies with the regulatory requirements and limits
for electromagnetic compatibility (EMC) stated in the product specifications. These
requirements and limits provide reasonable protection against harmful interference
when the product is operated in the intended operational electromagnetic
environment.
This product is intended for use in industrial locations. However, harmful
interference may occur in some installations, when the product is connected to a
peripheral device or test object, or if the product is used in residential or
commercial areas. To minimize interference with radio and television reception and
prevent unacceptable performance degradation, install and use this product in strict
accordance with the instructions in the product documentation.
Furthermore, any changes or modifications to the product not expressly approved
by National Instruments could void your authority to operate it under your local
regulatory rules.
Cable Requirements for EMC Compliance
Install cables for the NI-9238 in accordance with the following requirements:
■
Connect the cable shield to the chassis ground (grounding screw of the
chassis).
■
Install an EMI Noise-Suppression Ferrite (part number 782802-01) on the
input cable for each channel connected to the NI-9238.
■
Position the ferrite as close to the module as possible. Placing the ferrite
elsewhere decreases its effectiveness.
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NI-9238 Getting Started