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Caution

 Do not connect the product to signals or use for measurements

within Measurement Categories II, III, or IV.

Attention

 Ne pas connecter le produit à des signaux dans les catégories

de mesure II, III ou IV et ne pas l'utiliser pour effectuer des mesures dans

ces catégories.

Warning

 Do not connect the product to signals or use for measurements

within Measurement Categories II, III, or IV, or for measurements on MAINs

circuits or on circuits derived from Overvoltage Category II, III, or IV which

may have transient overvoltages above what the product can withstand.

The product must not be connected to circuits that have a maximum

voltage above the continuous working voltage, relative to earth or to

other channels, or this could damage and defeat the insulation. The

product can only withstand transients up to the transient overvoltage

rating without breakdown or damage to the insulation. An analysis of

the working voltages, loop impedances, temporary overvoltages, and

transient overvoltages in the system must be conducted prior to making

measurements.

Mise en garde

 Ne pas connecter le produit à des signaux dans les

catégories de mesure II, III ou IV et ne pas l'utiliser pour des mesures dans

ces catégories, ou des mesures sur secteur ou sur des circuits dérivés de

surtensions de catégorie II, III ou IV pouvant présenter des surtensions

transitoires supérieures à ce que le produit peut supporter. Le produit

ne doit pas être raccordé à des circuits ayant une tension maximale

supérieure à la tension de fonctionnement continu, par rapport à la

terre ou à d'autres voies, sous peine d'endommager et de compromettre

l'isolation. Le produit peut tomber en panne et son isolation risque

d'être endommagée si les tensions transitoires dépassent la surtension

transitoire nominale. Une analyse des tensions de fonctionnement, des

impédances de boucle, des surtensions temporaires et des surtensions

© National Instruments

5

NI-9472 Getting Started

Содержание NI 9472

Страница 1: ...NI 9472 Getting Started 2022 07 06...

Страница 2: ...ic Compatibility Guidelines 8 Special Conditions for Marine Applications 8 Preparing the Environment 9 NI 9472 Pinout 9 Connecting Digital Devices 10 Increasing Current Drive 11 High Vibration Applica...

Страница 3: ...cumentation for each component in the system to determine the safety and EMC ratings for the entire system Safety Guidelines Caution Observe all instructions and cautions in the user documentation Usi...

Страница 4: ...ans ces cat gories Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system This category refers to local level electrical distributio...

Страница 5: ...r damage to the insulation An analysis of the working voltages loop impedances temporary overvoltages and transient overvoltages in the system must be conducted prior to making measurements Mise en ga...

Страница 6: ...nded for direct connection to the MAINS building installations of Measurement Categories CAT II CAT III or CAT IV Safety Guidelines for Hazardous Voltages You can connect hazardous voltages only to th...

Страница 7: ...move 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 or Zone 2 Caution The system mu...

Страница 8: ...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 electromagne...

Страница 9: ...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 t...

Страница 10: ...472 with spring terminal Signal Description COM Common reference connection to isolated ground DO Digital output signal connection Vsup Voltage supply connection Table 1 NI 9472 Signal Descriptions LE...

Страница 11: ...at ni com manuals for output specifications Note When the industrial device is off DO is not connected to COM For large source impedances you must use a pull down resistor between DO and COM Go to ni...

Страница 12: ...h the NI 9472 with spring terminal I O Protection The NI 9472 provides short circuit protection Each channel has circuitry that protects it from current surges resulting from short circuits over 14 A...

Страница 13: ...ate measure the voltage between DO and Vsup If the voltage is equal to the voltage of the external power supply connected to the module the channel is in an overcurrent state Resetting Channels after...

Страница 14: ...stration 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 14...

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