NI NI-9205 Manual de usuario

NI-9205 Getting

Started

2022-07-06

Contents

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

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

Safety Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Safety Guidelines for Hazardous Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Safety Guidelines for Hazardous Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Special Conditions for Hazardous Locations Use in Europe and Internationally.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electromagnetic Compatibility Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Special Conditions for Marine Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Preparing the Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Connecting the NI 9205. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

NI 9205 Signal Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Connecting Grounded Dierential Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Connecting Floating Dierential Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Connecting RSE Voltage Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Connecting NRSE Voltage Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Connecting to a Spring-Terminal Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

High-Vibration Application Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Where to Go Next. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Worldwide Support and Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

ni.com

NI-9205 Getting Started

Overview

This document explains how to connect to the NI 9205.

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 9205. 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 9205 only as described in this document.

Caution This icon denotes a caution, which advises you to consult

documentation where this symbol is marked.

Caution Do not operate the NI 9205 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-9205 Getting Started

Hazardous Voltage This icon denotes a warning advising you to take

precautions to avoid electrical shock with the NI 9205 with spring

terminal .

Safety Voltages

Connect only voltages that are within the following limits:

Maximum voltage[1]

Channel-to-COM ±30 V DC

1 The maximum voltage that can be applied or output between AI and COM without

creating a safety hazard.

NI 9205 with Spring Terminal Isolation Voltages

Channel-to-channel None

Channel-to-earth ground

Continuous 250 V RMS, Measurement Category II

Withstand

up to 2,000 m 3,000 V RMS, 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.

Caution Do not connect the NI 9205 to signals or use for measurements

within Measurement Categories III or IV.

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NI-9205 Getting Started

NI 9205 with DSUB Isolation Voltages

Channel-to-channel None

Channel-to-earth ground

Continuous 60 V DC, Measurement Category I

Withstand

up to 2,000 m 1,000 V RMS, verified by a 5 s dielectric withstand test

up to 5,000 m 500 V RMS

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 9205 with DSUB 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 for other circuits not intended for direct

connection to the MAINS building installations of Measurement Categories

CAT II, CAT III, or CAT IV.

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.

NI-9205 Getting Started

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.

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. You must use the

NI 9940 backshell kit to ensure that the terminals are not accessible.

Safety Guidelines for Hazardous Locations

The NI 9205 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 Gc and Ex nA IIC T4 Gc hazardous locations;

and nonhazardous locations only. Follow these guidelines if you are installing the

NI 9205 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, or Zone 2.

ni.com

NI-9205 Getting Started

Caution The system must be installed in an enclosure certified for the

intended hazardous (classified) location, having a tool secured cover/door,

where a minimum protection of at least IP54 is provided.

Special Conditions for Hazardous Locations Use in Europe and

Internationally

The NI 9205 has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO 03

ATEX 0324020X and is IECEx UL 14.0089X certified. Each NI 9205 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 9205 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 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

NI-9205 Getting Started

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.

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 9205 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

ni.com

NI-9205 Getting Started

NI 9205 with spring terminal 2,000 m

NI 9205 with DSUB 5,000 m

Indoor use only.

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

specifications.

Connecting the NI 9205

The NI 9205 provides connections for 32 single-ended channels or 16 dierential

channels.

Figure 1. NI 9205 Pinout

AI8

AI9

AI10

AI11

AI12

AI13

AI14

AI15

PFI0

COM

AI24

AI25

AI26

AI27

AI28

AI29

AI30

AI31

AI0

AI1

AI2

AI3

AI4

AI5

AI6

AI7

DO0

COM

AI16

AI17

AI18

AI19

AI20

AI21

AI22

AI23

AISENSE

AI0

AI1

AI3

AI5

AI7

AI17

AI19

AI21

AI23

DO0

AI2

AI4

AI6

AI16

AI18

AI20

AI22

COM

AI9

AI8

AI10

AI12

AI14

AI24

AI26

AI28

AI30

AISENSE

AI11

AI13

AI15

AI25

AI27

AI29

AI31

PFI0

NI 9205 Signal Descriptions

Signal Name Description

AI Analog input channel

AISENSE Reference for each AI channel for NRSE measurements

COM Internally connected to the isolated ground reference

DO Digital output channel[1]

NI-9205 Getting Started

Signal Name Description

PFI Programmable function interface signal that functions as a digital input

Table 1. NI 9205 Signal Descriptions

1 The digital output channel is supported only in CompactRIO systems.

Signals

You can connect single-ended or dierential signals to the NI 9205. Use a dierential

measurement configuration to attain more accurate measurements and less noise.

The following table shows the signal pairs that are valid for dierential connection

configurations with the NI 9205.

Channel AI + AI-

0 AI0 AI8

1 AI1 AI9

2 AI2 AI10

3 AI3 AI11

4 AI4 AI12

5 AI5 AI13

6 AI6 AI14

7 AI7 AI15

16 AI16 AI24

17 AI17 AI25

18 AI18 AI26

19 AI19 AI27

20 AI20 AI28

21 AI21 AI29

22 AI22 AI30

23 AI23 AI31

Table 2. Dierential Pairs

Connecting Grounded Dierential Signals

You can connect grounded dierential signals to the NI 9205.

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NI-9205 Getting Started

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