National Instruments NI 9213 Manuale utente

NI-9213

Getting Started

2023-04-19

Contents

NI 9213 Getting Started Guide Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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NI-9213 Getting Started

NI 9213 Getting Started Guide Map

Overview

This document explains how to connect to the NI 9213.

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 9213.

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 9213 only as described in this document.

Caution Do not operate the NI 9213 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-9213 Getting Started

Hazardous Voltage This icon denotes a warning advising you to take

precautions to avoid electrical shock.

Safety Voltages

Connect only voltages that are within the following limits:

Between any two terminals ±30 V maximum

Isolation

Channel-to-channel None

Channel-to-earth ground

Continuous 250 Vrms, Measurement Category II

Withstand 2,300 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.

Caution Do not connect the NI 9213 to signals or use for measurements

within Measurement Categories III or 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.

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NI-9213 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 connector backshell kit to ensure that the terminals are not

accessible.

Safety Guidelines for Hazardous Locations

The NI 9213 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 9213 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.

NI-9213 Getting Started

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, connected signals must

be within the following limits.

Capacitance 0.2 µF maximum

Special Conditions for Hazardous Locations Use in Europe and Internationally

The NI 9213 has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO

Certificate No. 07 ATEX 0626664X and is IECEx UL 14.0089X certified. Each NI 9213

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 9213 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.

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.

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NI-9213 Getting Started

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.

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-9213 Getting Started

Preparing the Environment

Ensure that the environment in which you are using the NI 9213 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 2,000 m

Indoor use only.

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

specifications.

NI 9213 (Black Connector) Pinout

TC0+

TC2+

TC4+

TC6+

TC8+

TC10+

TC12+

TC14+

COM

TC1+

TC3+

TC5+

TC7+

TC9+

TC11+

TC13+

TC15+

TC0–

TC1–

TC3–

TC5–

TC7–

TC9–

TC11–

TC13–

TC15–

TC2–

TC4–

TC6–

TC8–

TC10–

TC12–

TC14–

COM

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NI-9213 Getting Started

Table 1. Signal Descriptions

Signal Description

COM Common reference connection

NC No connection

TC+ Positive thermocouple connection

TC- Negative thermocouple connection

Connecting a Thermocouple

You can connect a shielded thermocouple to the NI 9213.

Figure 1. Connecting a Thermocouple to the NI 9213

Thermocouple

TC–

COM

TC+

Shield

NI 9213

Vreference

Connecting Wires to a Spring-Terminal Connector

What to Use

■NI 9213 spring-terminal connector

■ 0.8 mm2 to 1.0 mm2 (28 AWG to 18 AWG) copper conductor wire with 7 mm

(0.276 in.) of insulation stripped from the end

■Flathead screwdriver with a 2.3 mm x 1.0 mm (0.09 in. x 0.04 in.) blade,

included with the NI 9213

What to Do

Complete the following steps to connect wires to the spring-terminal connector.

NI-9213 Getting Started

1 2 3

1. Insert the screwdriver into a spring clamp activation slot to open the

corresponding connector terminal.

2. Press a wire into the open connector terminal.

3. Remove the screwdriver from the activation slot to clamp the wire into place.

High-Vibration Application Connections

If your application is subject to high vibration, NI recommends that you use the

NI 9940 backshell kit to protect connections to the NI 9213.

Minimizing Thermal Gradients

Changes in the ambient air temperature near the front connector or a thermocouple

wire conducting heat directly to terminal junctions can cause thermal gradients.

Observe the following guidelines to minimize thermal gradients and improve the

system accuracy.

■Use small-gauge thermocouple wire. Smaller wire transfers less heat to or

from the terminal junction.

■Run thermocouple wiring together near the spring-terminal connector to

keep the wires at the same temperature.

■Avoid running thermocouple wires near hot or cold objects.

■Minimize adjacent heat sources and air flow across the terminals.

■Keep the ambient temperature as stable as possible.

■Make sure the NI 9213 terminals are facing forward or upward.

■Keep the NI 9213 in a stable and consistent orientation.

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NI-9213 Getting Started

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