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Caution

 Transient protection shall be provided that is set at a level not

exceeding 140% of the peak rated voltage value of 85 V at the supply

terminals to the equipment.

Caution

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

Pollution Degree 2, as defined in IEC/EN 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.

© National Instruments

7

NI-9426 Getting Started

Summary of Contents for NI 9426

Page 1: ...NI 9426 Getting Started 2022 07 06...

Page 2: ...ous Voltages 5 Safety Guidelines for Hazardous Locations 5 Electromagnetic Compatibility Guidelines 7 Special Conditions for Marine Applications 7 Preparing the Environment 8 NI 9426 Pinout 8 Connecti...

Page 3: ...on Attention Suivez toutes les instructions et respectez toutes les mises en garde de la documentation d utilisation L utilisation du produit de toute autre fa on que celle sp cifi e risque de l endom...

Page 4: ...the transient overvoltage rating without breakdown or damage to the insulation An analysis of the working voltages loop impedances temporary overvoltages and transient overvoltages in the system must...

Page 5: ...e Measurement Categories CAT I and CAT O are equivalent These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement...

Page 6: ...aution Substitution of components may impair suitability for Class I Division 2 or Zone 2 Caution The system must be installed in an enclosure certified for the intended hazardous classified location...

Page 7: ...ated in the product specifications These requirements and limits provide reasonable protection against harmful interference when the product is operated in the intended operational electromagnetic env...

Page 8: ...output ports In addition take precautions when designing selecting and installing measurement probes and cables to ensure that the desired EMC performance is attained Preparing the Environment Ensure...

Page 9: ...t signal connection NC No connection Vsup Voltage supply connection Table 1 Signal Descriptions Connecting a Sinking Output Device You can connect 2 and 3 wire sinking output devices to the NI 9426 NI...

Page 10: ...earn about NI service offerings such as calibration options repair and replacement Visit ni com register to register your NI product Product registration facilitates technical support and ensures that...

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