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Before You Begin

Read the NI-9426 Safety, Environmental, and Regulatory Information and

complete the software and hardware installation procedures in your chassis

documentation.

Safety Guidelines

Caution

 Observe all instructions and cautions in the user documentation.

Using the product in a manner not specified can damage the product and

compromise the built-in safety protection.

Attention

 Suivez toutes les instructions et respectez toutes les mises

en garde de la documentation d'utilisation. L'utilisation du produit de

toute autre façon que celle spécifiée risque de l'endommager et de

compromettre la protection de sécurité intégrée.

Safety Voltages

Connect only voltages that are within the following limits:

Vsup-to-channel

30 VDC maximum

Isolation

Channel-to-channel

None

Channel-to-earth ground

Continuous

60 VDC, Measurement Category I

Withstand

1,000 Vrms, verified by a 5 s dielectric withstand test

© National Instruments

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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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