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Caution

 You must make sure that transient disturbances do not exceed

140% of the rated voltage.

Caution

 The system shall only be used in an area of not more than

Pollution Degree 2, as defined in IEC 60664-1.

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

Select and install cables for the NI 9401 in accordance with the following

requirements:

ni.com

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NI-9401

Summary of Contents for NI 9401

Page 1: ...NI 9401 2023 04 25...

Page 2: ...tromagnetic Compatibility Guidelines 6 Preparing the Environment 7 Connecting the NI 9401 8 NI 9401 Signals 8 Ports 8 Connecting a Serial Peripheral Interface Device 8 Connecting Digital Devices 9 Ove...

Page 3: ...entire system 2005 2015 National Instruments Corporation All rights reserved Refer to the National Instruments _Legal Information directory for information about NI copyright patents trademarks warra...

Page 4: ...is category is for measurements of voltages from specially protected secondary circuits Such voltage measurements include signal levels special equipment limited energy parts of equipment circuits pow...

Page 5: ...for Class I Division 2 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 applica...

Page 6: ...tection 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 inter...

Page 7: ...s Register certification for a product visit ni com certification and search for the LR certificate or look for the Lloyd s Register mark on the product Caution In order to meet the EMC requirements f...

Page 8: ...6 NC DIO7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 NI 9401 Signals Table 1 Signal Descriptions Signal Description COM Common reference connection to isolated ground DIO Digita...

Page 9: ...V DIO1 COM DIO7 NI 9401 LED Switch DIO0 TTL Signal DIO3 0 Configured for Input DIO7 4 Configured for Output Overcurrent Short Circuit Protection The overcurrent protection allows only a specified amou...

Page 10: ...hnical support and ensures that you receive important information updates from NI A Declaration of Conformity DoC is our claim of compliance with the Council of the European Communities using the manu...

Page 11: ...websites which provide up to date contact information support phone numbers email addresses and current events National Instruments 11 NI 9401 2023 National Instruments Corporation...

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