National Instruments NI-9208 Bedienungsanleitung

NI-9208 Getting

Started

2022-07-01

Contents

Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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

NI-9208 with Spring Terminal Safety Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

NI-9208 with DSUB Safety Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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

Electromagnetic Compatibility Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Special Conditions for Marine Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Preparing the Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

NI 9208 with Spring Terminal Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Connecting an External Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Connecting a Loop-Powered Current Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Connecting a Three-Wire Current Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

NI-9208 Connection Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

High-Vibration Application Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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

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

NI Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

ni.com

NI-9208 Getting Started

Before You Begin

Read the NI-9208 Safety, Environmental, and Regulatory Information and

complete the soware and hardware installation procedures in your chassis

documentation.

Safety Guidelines

Caution Observe all instructions and cautions in the user documentation.

Using the product in a manner not specified can damage the product and

compromise the built-in safety protection.

Attention Suivez toutes les instructions et respectez toutes les mises

en garde de la documentation d'utilisation. L'utilisation du produit de

toute autre façon que celle spécifiée risque de l'endommager et de

compromettre la protection de sécurité intégrée.

NI-9208 with Spring Terminal Safety Voltages

Connect only voltages that are within the following limits:

Isolation

Channel-to-channel None

Channel-to-earth ground

Continuous 250 V RMS, Measurement Category II

Withstand, up to 4,000 m 3,000 V RMS, verified by a 5 s dielectric withstand test

NI-9208 with DSUB Safety Voltages

Connect only voltages that are within the following limits:

NI-9208 Getting Started

Isolation

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

Safety Guidelines for Hazardous Locations

The NI-9208 is suitable for use in hazardous locations; , and hazardous locations;

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

NI-9208 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.

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-9208 with spring terminal has been evaluated as equipment under DEMKO

ATEX and is IECEx certified. The NI-9208 with DSUB has been evaluated as

ni.com

NI-9208 Getting Started

equipment under DEMKO ATEX and is IECEx certified. Each NI-9208 is marked 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-9208 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

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.

NI-9208 Getting Started

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 approved for marine (shipboard) applications. To verify marine

approval certification for a product, visit ni.com/product-certifications, search by

model number, and click the appropriate link.

Notice 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-9208 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-9208 with spring terminal 4,000 m

For NI-9208 with DSUB 2,000 m

Indoor use only.

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

specifications.

ni.com

NI-9208 Getting Started

NI 9208 with Spring Terminal Pinout

COM

AI14

AI12

AI10

AI8

AI6

AI4

AI2

AI0

COM

AI15

AI13

AI11

AI9

AI7

AI5

AI3

AI1

Vsup

Table 1. Signal Descriptions

Signal Description

AI Analog input signal connection

COM Common reference connection to isolated ground

Vsup Voltage supply connection

Connecting an External Power Supply

You can connect an external power supply to the NI-9208. This power supply

provides the current for the devices you connect to the module. Connect the

positive lead of the power supply to a Vsup pin and the negative lead of the power

supply to COM. Install a 2 A maximum, fast-acting fuse between the external power

supply and the Vsup pin.

Note The Vsup pins are internally connected to each other. You can

connect only one external voltage supply to the device.

NI-9208 Getting Started

Caution Do not remove or insert modules if the external power supply

connected to the Vsup and COM pins is powered on.

Connecting a Loop-Powered Current Transducer

NI 9208

–

AI0

External

Power

Supply

Loop-Powered

Current

Transducer

Vsup

COM

Vsup

2 A

Max

Connecting a Three-Wire Current Transducer

NI 9208

Vsup

COM

–

COM

Vsup

AI0

External

Power

Supply

Three-Wire

Current

Transducer

2 A

Max

OUT

–

NI-9208 Connection Guidelines

■ Make sure that devices you connect to the NI-9208 are compatible with the

module specifications.

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

more than one wire to a single terminal on the NI-9208 with spring terminal.

■ Push the wire into the terminal when using a solid wire or a stranded wire

with a ferrule.

ni.com

NI-9208 Getting Started

■ Open the terminal by pressing the push button when using stranded wire

without a ferrule.

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-9208 with spring terminal.

Overvoltage Protection

The NI-9208 provides overvoltage protection for each channel.

Note Refer to the NI-9208 Specifications 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 9208 Datasheet

NI-RIO Help

LabVIEW FPGA Help

NI 9208 Datasheet

NI-DAQmx Help

LabVIEW Help

NI Services

Visit ni.com/support to find support resources including documentation,

downloads, and troubleshooting and application development self-help such as

tutorials and examples.

NI-9208 Getting Started

Visit ni.com/services to learn about NI service oerings such as calibration options,

repair, and replacement.

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

technical support and ensures that you receive important information updates from

NI.

NI corporate headquarters is located at 11500 N Mopac Expwy, Austin, TX,

78759-3504, USA.

ni.com

NI-9208 Getting Started

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