National Instruments NI-9238 Скачать руководство пользователя

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Figure 1. NI-9238 Cable Connections for EMC Compliance

NI 9238

Shield

AI0+

AI0–

Ferrite

Shield

AI1+

AI1–

Ferrite

Shield

AI2+

AI2–

Ferrite

Signal

Source

Signal

Source

Signal

Source

Shield

AI3+

AI3–

Ferrite

Signal

Source

Related concepts

■

NI-9238 Connection Guidelines

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-9238 meets the following

specifications.

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

-40 °C to 70 °C

Operating humidity (IEC 60068-2-30)

10% RH to 90% RH, noncondensing

NI-9238 Getting Started

Содержание NI-9238

Страница 1: ...NI 9238 Getting Started 2022 07 06 ...

Страница 2: ...ty Guidelines 6 Cable Requirements for EMC Compliance 6 Special Conditions for Marine Applications 7 Preparing the Environment 7 NI 9238 Pinout 8 Grounded Connections 8 Floating Connections 8 NI 9238 Connection Guidelines 9 High Vibration Application Connections 9 Overvoltage Protection 9 Where to Go Next 9 NI Services 10 ni com 2 NI 9238 Getting Started ...

Страница 3: ...tion 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 compromet...

Страница 4: ... you must ensure that devices and circuits connected to the product are properly insulated from human contact Attention Lorsqu une haute tension dangereuse est appliquée aux bornes du produit vous devez vous assurer que les appareils et les circuits auxquels il est connecté sont correctement isolés de tout contact humain Caution You must use the NI 9971 connector backshell kit to ensure that the t...

Страница 5: ...cial Conditions for Hazardous Locations Use in Europe and Internationally The NI 9238 has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO 12ATEX 1202658X and is IECEx UL 14 0089X certified Each NI 9238 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 9238 in Gas Group IIC hazardous locations you must use t...

Страница 6: ...nnected 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 ...

Страница 7: ...del 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...

Страница 8: ...manuals for complete specifications NI 9238 Pinout AI0 AI0 AI1 AI1 AI2 AI2 AI3 AI3 0 1 0 1 0 1 0 1 Signal Description AI Positive analog input signal connection AI Negative analog input signal connection Table 1 Signal Descriptions Grounded Connections NI 9238 Signal Source AI AI ni com 8 NI 9238 Getting Started ...

Страница 9: ...r EMC Compliance High Vibration Application Connections If your application is subject to high vibration NI recommends that you follow these guidelines to protect connections to the NI 9238 Use ferrules to terminate wires to the detachable connector Use the NI 9971 connector backshell kit Overvoltage Protection The NI 9238 provides overvoltage protection for each channel Note Refer to the NI 9238 ...

Страница 10: ...cumentation downloads and troubleshooting and application development self help such as tutorials and examples Visit ni com services to learn about NI service offerings 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...

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