National Instruments NI 9375 Bedienungsanleitung

GETTING STARTED GUIDE

NI 9375

16 DI/16 DO, 30 VDC, 7 μs Sinking DI, 500 μs

Sourcing DO

This document explains how to connect to the NI 9375. In this

document, the NI 9375 with spring terminal and the NI 9375 with

DSUB are referred to inclusively as the NI 9375.

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 9375. 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.

Caution Electrostatic Discharge (ESD) can damage

the NI 9375 with spring terminal. To prevent damage,

use industry-standard ESD prevention measures during

installation, maintenance, and operation.

Safety Guidelines

Operate the NI 9375 only as described in this document.

2| ni.com | NI 9375 Getting Started Guide

Caution Do not operate the NI 9375 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.

Safety Voltages

Connect only voltages that are within the following limits:

NI 9375 with Spring Terminal Isolation Voltages

Channel-to-channel None

Channel-to-earth ground

Continuous 250 Vrms,

Measurement Category II

Withstand up to

4,000 m

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

NI 9375 Getting Started Guide | © National Instruments | 3

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 9375 with spring

terminal to signals or use for measurements within

Measurement Categories III or IV.

NI 9375 with DSUB Isolation Voltages

Channel-to-COM or

Vsup-to-COM

30 VDC maximum

Isolation

DI bank-to-DO bank 60 VDC maximum

Channel-to-Channel No isolation between channels

Channel-to-earth ground

Continuous 60 VDC,

Measurement Category I

Withstand up to

2,000 m

1,000 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

4| ni.com | NI 9375 Getting Started Guide

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 9375 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 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 9375 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 9375 in a potentially explosive environment. Not following

these guidelines may result in serious injury or death.

NI 9375 Getting Started Guide | © National Instruments | 5

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.

Caution For Division 2 and Zone 2 applications,

install a protection device between any two terminals.

The device must prevent the Vsup-to-COM voltage

from exceeding 42 V if there is a transient overvoltage

condition.

Special Conditions for Hazardous Locations Use in

Europe and Internationally

The NI 9375 has been evaluated as Ex nA IIC T4 Gc equipment

under DEMKO 07 ATEX 0626664X and is IECEx UL 14.0089X

6| ni.com | NI 9375 Getting Started Guide

certified. Each NI 9375 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 9375 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/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.

NI 9375 Getting Started Guide | © National Instruments | 7

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.

8| ni.com | NI 9375 Getting Started Guide

Caution To ensure the specified EMC performance,

operate this product only with shielded cables and

accessories.

Caution To ensure the specified EMC performance,

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

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.

NI 9375 Getting Started Guide | © National Instruments | 9

Preparing the Environment

Ensure that the environment in which you are using the NI 9375

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

For NI 9375 with

spring terminal

4,000 m

For NI 9375 with

DSUB

2,000 m

Indoor use only.

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

for complete specifications.

10 | ni.com | NI 9375 Getting Started Guide

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