National Instruments NI 9226 Bedienungsanleitung

GETTING STARTED GUIDE

NI 9226

8 RTD, 0 Ω to 4,000 Ω, 24 Bit, 400 S/s

Aggregate, PT1000

This document explains how to connect to the NI 9226. In this

document, the NI 9226 with spring terminal and the

NI 9226 with DSUB are referred to inclusively as the NI 9226.

Note Before you begin, complete the software and

hardware installation procedures in your chassis

documentation.

Note The guidelines in this document are specific to

the NI 9226. The other components in the system might

not meet the same safety ratings. Refer to the

documentation for each component in the system to

determine the safety and EMC ratings for the entire

system.

Safety Guidelines

Operate the NI 9226 only as described in this document.

Caution Do not operate the NI 9226 in a manner not

specified in this document. Product misuse can result in

a hazard. You can compromise the safety protection

built into the product if the product is damaged in any

2| ni.com | NI 9226 Getting Started Guide

way. If the product is damaged, return it to NI for

repair.

Hazardous Voltage This icon denotes a warning

advising you to take precautions to avoid electrical

shock.

Safety Guidelines for Hazardous Voltages

If hazardous voltages are connected to the device, take the

following precautions. A hazardous voltage is a voltage greater

than 42.4 Vpk voltage or 60 VDC to earth ground.

You can connect hazardous voltages only to the

NI 9226 with spring terminal. Do not connect hazardous voltages

to the NI 9226 with DSUB.

Caution Ensure that hazardous voltage wiring is

performed only by qualified personnel adhering to local

electrical standards.

Caution Do not mix hazardous voltage circuits and

human-accessible circuits on the same module.

Caution Ensure that devices and circuits connected to

the module are properly insulated from human contact.

NI 9226 Getting Started Guide | © National Instruments | 3

Caution When module terminals are hazardous

voltage LIVE (>42.4 Vpk/60 VDC), you must ensure

that devices and circuits connected to the module are

properly insulated from human contact.

Safety Voltages

Connect only voltages that are within the following limits.

NI 9226 with Spring Terminal Isolation Voltages

Channel-to-channel None

Channel-to-earth ground

Continuous 250 Vrms,

Measurement Category II

Withstand 3,000 Vrms, verified by a 5 s

dielectric withstand test

Measurement Category II is for measurements performed on

circuits directly connected to the electrical distribution system.

This category refers to local-level electrical distribution, such as

that provided by a standard wall outlet, for example, 115 V for

U.S. or 230 V for Europe.

4| ni.com | NI 9226 Getting Started Guide

Caution Do not connect the NI 9226 to signals or use

for measurements within Measurement Categories III

or IV.

NI 9226 with DSUB Isolation Voltages

Channel-to-channel None

Channel-to-earth ground

Continuous 60 VDC,

Measurement Category I

Withstand

Up to 3,000 m 1,000 Vrms, verified by a 5 s

dielectric withstand test

up to 5,000 m 860 Vrms, verified by a 5 s

dielectric withstand test

Measurement Category I is for measurements performed on

circuits not directly connected to the electrical distribution system

referred to as MAINS voltage. MAINS is a hazardous live

electrical supply system that powers equipment. This category is

for measurements of voltages from specially protected secondary

circuits. Such voltage measurements include signal levels, special

NI 9226 Getting Started Guide | © National Instruments | 5

equipment, limited-energy parts of equipment, circuits powered

by regulated low-voltage sources, and electronics.

Note Do not connect the NI 9226 with DSUB to

signals or use for measurements within Measurement

Categories II, III, or IV.

Caution Do not connect the NI 9226 to signals or use

for measurements within Measurement Categories II,

III, or IV.

Note Measurement Categories CAT I and CAT O are

equivalent. These test and measurement circuits are not

intended for direct connection to the MAINS building

installations of Measurement Categories CAT II,

CAT III, or CAT IV.

Safety Guidelines for Hazardous Locations

The NI 9226 is suitable for use in Class I, Division 2, Groups A,

B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA IIC T4

and Ex nA IIC T4 hazardous locations; and nonhazardous

locations only. Follow these guidelines if you are installing the

NI 9226 in a potentially explosive environment. Not following

these guidelines may result in serious injury or death.

6| ni.com | NI 9226 Getting Started Guide

Caution Do not disconnect I/O-side wires or

connectors unless power has been switched off or the

area is known to be nonhazardous.

Caution Do not remove modules unless power has

been switched off or the area is known to be

nonhazardous.

Caution Substitution of components may impair

suitability 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.

Special Conditions for Hazardous Locations Use in

Europe and Internationally

The NI 9226 has been evaluated as Ex nA IIC T4 Gc equipment

under DEMKO Certificate No. 12 ATEX 1202658X and is

IECEx UL 14.0089X certified. Each NI 9226 is marked II 3G

and is suitable for use in Zone 2 hazardous locations, in ambient

temperatures of -40 °C ≤ Ta ≤ 70 °C. If you are using the NI 9226

in Gas Group IIC hazardous locations, you must use the device in

NI 9226 Getting Started Guide | © National Instruments | 7

an NI chassis that has been evaluated as Ex nC IIC T4, Ex IIC

T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.

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

8| ni.com | NI 9226 Getting Started Guide

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.

Caution To ensure the specified EMC performance,

operate this product only with shielded cables and

accessories. Do not use unshielded cables or

accessories unless they are installed in a shielded

enclosure with properly designed and shielded input/

output ports and connected to the product using a

shielded cable. If unshielded cables or accessories are

NI 9226 Getting Started Guide | © National Instruments | 9

not properly installed and shielded, the EMC

specifications for the product are no longer guaranteed.

Caution To ensure the specified EMC performance of

the NI 9226 with spring terminal, cable shields must be

connected to the ground lug of the chassis using a wire

of minimum practical length.

Caution The pins of the NI 9226 with spring terminal

can be damaged if subjected to Electrostatic Discharge

(ESD). To prevent damage either install the NI 9440

connector backshell kit or employ industry-standard

ESD prevention measures during installation,

maintenance, and operation.

Caution To ensure the specified EMC performance of

the NI 9226 with DSUB, the length of all I/O cables

must be no longer than 30 m (100 ft).

Special Conditions for Marine Applications

Some products are Lloyd’s Register (LR) Type Approved for

marine (shipboard) applications. To verify Lloyd’s Register

certification for a product, visit ni.com/certification and search

10 | ni.com | NI 9226 Getting Started Guide

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