NI NI-9222 Manuale utente

NI-9222

2023-04-25

Contents

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Guidelines for Hazardous Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Electromagnetic Compatibility Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Cable Requirements for EMC Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Special Conditions for Marine Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Preparing the Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

NI 9222 Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Grounded Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Floating Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

NI 9222 Connection Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Wiring for High-Vibration Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Overvoltage Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Where to Go Next. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Worldwide Support and Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

ni.com

NI-9222

Overview

This document explains how to connect to the NI 9222.

Note Before you begin, complete the soware and hardware installation

procedures in your chassis documentation.

Note The guidelines in this document are specific to the NI 9222. 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.

Instruments>\_Legal Information directory for information about NI copyright,

patents, trademarks, warranties, product warnings, and export compliance.

Safety Guidelines

Operate the NI 9222 only as described in this document.

Caution Do not operate the NI 9222 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

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

NI-9222

Safety Voltages

Connect only voltages that are within the following limits:

Isolation

Channel-to-channel

Continuous 60 VDC, Measurement Category I

Withstand 1000 Vrms, verified by a 5 s dielectric withstand

test

Channel-to-earth ground

Continuous 60 VDC, Measurement Category I

Withstand 1000 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 equipment, limited-energy

parts of equipment, circuits powered by regulated low-voltage sources, and

electronics.

Caution Do not connect the NI 9222 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 9222 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.com

NI-9222

NI 9222 in a potentially explosive environment. Not following these guidelines may

result in serious injury or death.

Caution Do not disconnect I/O-side wires or connectors unless power

has been switched o or the area is known to be nonhazardous.

Caution Do not remove modules unless power has been switched o 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 9222 with screw terminal has been evaluated as Ex nA IIC T4 Gc equipment

under DEMKO Certificate No. 07 ATEX 0626664X and is IECEx UL 14.0089X certified.

The NI 9222 with BNC 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 9222 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 9222 in Gas

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

NI-9222

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 9222 with screw terminal in accordance with the

following requirements:

■Connect the cable shield to the chassis ground (grounding screw of the

chassis) using the shortest length of wire possible.

■Use shielded, twisted-pair cables (Belden 9451 or equivalent).

ni.com

NI-9222

Figure 1. Cable Connections for NI 9222 with screw terminal for EMC Compliance

NI 9222

Shield

AI0+

AI0–

Signal

Source

Shield

AI1+

AI1–

Signal

Source

Shield

AI2+

AI2–

Signal

Source

Shield

AI3+

AI3–

Signal

Source

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 for the LR certificate, or look for the Lloyd’s Register mark

on the product.

Caution In order to meet the EMC requirements for marine applications,

install the product in a shielded enclosure with shielded and/or filtered

power and input/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 that the environment in which you are using the NI 9222 meets the following

specifications.

Operating temperature

(IEC 60068-2-1, IEC 60068-2-2)

-40 °C to 70 °C

Operating humidity (IEC 60068-2-78) 10% RH to 90% RH, noncondensing

Pollution Degree 2

Maximum altitude 5,000 m

NI-9222

Indoor use only.

Note Refer to the device datasheet on ni.com/manuals for complete

specifications.

NI 9222 Pinout

Table 1. Signal Descriptions

Signal Description

AI+ Positive analog input signal connection

AI- Negative analog input signal connection

Grounded Connections

NI 9222

AI–

–

AI+

Signal

Source

Floating Connections

NI 9222

Signal

Source

AI–

–

AI+

NI 9222 Connection Guidelines

■Make sure that devices you connect to the NI 9222 are compatible with the

module specifications.

ni.com

NI-9222

■You must use 2-wire ferrules to create a secure connection when connecting

more than one wire to a single terminal on the NI 9222 with screw terminal.

Wiring for High-Vibration Applications

If your application is subject to high vibration, NI recommends that you follow these

guidelines to protect connections to the NI 9222 with screw terminal:

■Use ferrules to terminate wires to the detachable connector.

■Use the NI 9971 backshell kit.

Overvoltage Protection

The NI 9222 provides overvoltage protection for each channel.

Note Refer to the device datasheet on ni.com/manuals for more

information about overvoltage protection.

Where to Go Next

CompactRIO NI CompactDAQ

Located at ni.com/manuals

RELATED INFORMATION

C Series Documentation

& Resources

ni.com/info cseriesdoc

Services

ni.com/services

Installs with the software

NI 9222 Datasheet

NI-RIO Help

LabVIEW FPGA Help

NI 9222 Datasheet

NI-DAQmx Help

LabVIEW Help

Worldwide Support and Services

The NI website is your complete resource for technical support. At ni.com/support,

you have access to everything from troubleshooting and application development

self-help resources to email and phone assistance from NI Application Engineers.

NI-9222

Visit ni.com/services for NI Factory Installation Services, repairs, extended warranty,

and other services.

Visit ni.com/register to register your NI product. Product registration facilitates

technical 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 manufacturer’s declaration of conformity. This

system aords the user protection for electromagnetic compatibility (EMC) and

product safety. You can obtain the DoC for your product by visiting ni.com/

certification. If your product supports calibration, you can obtain the calibration

certificate for your product at ni.com/calibration.

NI corporate headquarters is located at 11500 North Mopac Expressway, Austin,

Texas, 78759-3504. NI also has oices located around the world. For telephone

support in the United States, create your service request at ni.com/support or dial

1 866 ASK MYNI (275 6964). For telephone support outside the United States, visit

the Worldwide Oices section of ni.com/niglobal to access the branch oice

websites, which provide up-to-date contact information, support phone numbers,

email addresses, and current events.

ni.com

NI-9222

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