NI 9217 Getting Started Manual

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GETTING STARTED GUIDE

NI 9217

4 RTD, 0 Ω to 400 Ω, 24 Bit, 400 S/s Aggregate, PT100

This document explains how to connect to the NI 9217.

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 9217. 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 9217 only as described in this document.

Caution Do not operate the NI 9217 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.

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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.

Maximum Voltage

Connect only voltages that are within the following limits.

All terminals-to-COM ±30 V

Isolation Voltages

Channel-to-channel None

The maximum voltage that can be applied between any channel or Vsup terminal and a COM terminal without damaging the module or other devices.

NI 9217 Getting Started Guide | © National Instruments | 3

Channel-to-earth ground

Continuous

up to 2,000 m 250 Vrms, Measurement

Category II

up to 5,000 m 60 VDC, Measurement

Category I

Withstand

up to 2,000 m 2,300 Vrms, verified by a 5 s

dielectric withstand test

up to 5,000 m 1,000 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 that provided by a standard wall outlet, for example, 115 V for U.S. or 230 V for Europe.

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

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installations of Measurement Categories CAT II, CAT III, or CAT IV.

Caution Do not connect the NI 9217 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.

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

NI 9217 Getting Started Guide | © National Instruments | 5

properly insulated from human contact. You must use the NI 9939 connector backshell kit to ensure that the terminals are not accessible.

Safety Guidelines for Hazardous Locations

The NI 9217 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 9217 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 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.

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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 9217 has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO Certificate No. 03 ATEX 0324020X and is IECEx UL 14.0089X certified. Each NI 9217 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 9217 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.

NI 9217 Getting Started Guide | © National Instruments | 7

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.

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

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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.

Caution To ensure the specified EMC performance,

operate this product only with shielded cables and accessories.

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

NI 9217 Getting Started Guide | © National Instruments | 9

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 9217 meets the following specifications.

Operating temperature

-40 °C to 70 °C

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

Operating humidity (IEC 60068-2-78)

10% RH to 90% RH, noncondensing

Pollution Degree 2

Maximum altitude 5,000 m

Indoor use only.

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

for complete specifications.

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NI 9217 Pinout

EX0 RTD0+ RTD0– COM EX1 RTD1+ RTD1– COM EX2 RTD2+ RTD2– COM EX3 RTD3+ RTD3– COM

0 1 2 3 4 5 6 7 8

9 10 11 12 13 14 15

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Table 1. Signal Descriptions

Signal Description

COM Common reference connection to isolated ground

EX Excitation source connection

RTD+ Positive resistance temperature detector connection

RTD- Negative resistance temperature detector connection

Connecting 3-Wire and 4-Wire RTDs

You can connect any combination of 3-wire or 4-wire RTDs to the NI 9217. Each NI 9217 channel contains circuitry that automatically detects the type of RTD connected to the channel. The NI 9217 scans all four input channels and automatically configures each channel for the appropriate mode. In 4-wire mode, the EX terminal is a 1 mA current source. In 3-wire mode, the RTD+ terminal is a 1 mA current source. The NI 9217 compensates for the error that lead resistance causes in 3-wire mode.

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If you are using a 4-wire RTD, connect EX to the positive lead of

NI 9217

4-Wire EX

RTD+

RTD–

COM

RTD

the RTD. If you are using a 3-wire RTD, do not connect the RTD to the EX terminal.

Figure 1. Connecting an RTD to the NI 9217

For the best measurement results when using the NI 9217 with a 3-wire RTD, use equal-length wires between the RTD+ terminal and the RTD and between the COM terminal and the RTD. Also, keep the lead resistance within 5% of the nominal RTD value. The NI 9217 accuracy specifications account for this lead error.

Note The accessory used with the NI 9217 may

introduce additional lead resistance mismatch error in

3-wire mode. Refer to the device datasheet on ni.com/

manuals for information about errors due to lead

resistance mismatch.

NI 9217 Connection Guidelines

• Make sure that devices you connect to the NI 9217 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 9217.

Wiring for High-Vibration Applications

If your application is subject to high vibration, NI recommends that you follow these guidelines to protect connections to the NI 9217:

• Use ferrules to terminate wires to the detachable connector.

• Use the NI 9939 backshell kit.

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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 9217 Datasheet

NI-RIO Help

LabVIEW FPGA Help

NI 9217 Datasheet

NI-DAQmx Help

LabVIEW Help

Worldwide Support and Services

The NI website is your complete resource for technical support. At ni.com/support, you have access to everything from troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers.

Visit ni.com/services for NI Factory Installation Services, repairs, extended warranty, and other services.

Visit ni.com/register to register your NI product. Product registration facilitates technical support and ensures that you receive important information updates from NI.

A Declaration of Conformity (DoC) is our claim of compliance with the Council of the European Communities using the manufacturer’s declaration of conformity. This system affords the user protection for electromagnetic compatibility (EMC) and product safety. You can obtain the DoC for your product by visiting ni.com/certification. If your product supports calibration, you can obtain the calibration certificate for your product at

ni.com/calibration.

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NI corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. NI also has offices located around the world. For telephone support in the United States, create your service request at ni.com/support or dial 1 866 ASK MYNI (275 6964). For telephone support outside the United States, visit the Worldwide Offices section of

ni.com/niglobal to access the branch office websites, which

provide up-to-date contact information, support phone numbers, email addresses, and current events.

Refer to the NI Trademarks and Logo Guidelines at ni.com/trademarks for information on NI trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering NI products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the National Instruments Patent Notice at ni.com/patents. You can find information about end-user license agreements (EULAs) and third-party legal notices in the readme file for your NI product. Refer to the Export Compliance Information at ni.com/legal/export-compliance for the NI global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/ export data. NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS. U.S. Government Customers: The data contained in this manual was developed at private expense and is subject to the applicable limited rights and restricted data rights as set forth in FAR

52.227-14, DFAR 252.227-7014, and DFAR 252.227-7015.

374187F-01 Mar16