National Instruments Network Card NI 9217 User Manual

OPERATING INSTRUCTIONS AND SPECIFICATIONS  
NI 9217  
4-Channel, 24-Bit, 100Ω RTD Analog Input Module  
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Hot Surface This icon denotes that the component may be  
hot. Touching this component may result in bodily injury.  
Safety Guidelines for Hazardous Voltages  
If hazardous voltages are connected to the module, take the  
following precautions. A hazardous voltage is a voltage greater  
than 42.4 Vpk 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 Make sure 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 9939  
connector backshell kit to ensure that the terminals are  
not accessible.  
© National Instruments Corp.  
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NI 9217 Operating Instructions and Specifications  
 
Figure 1 shows the NI 9939 connector backshell.  
Figure 1. NI 9939 Connector Backshell  
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 nC IIC T4, and  
Ex nC IIC T4 hazardous locations; and nonhazardous locations  
NI 9217 Operating Instructions and Specifications  
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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.  
Caution For Zone 2 applications, install the system  
in an enclosure rated to at least IP 54 as defined by  
IEC 60529 and EN 60529.  
Caution For Zone 2 applications, connected signals must  
be within the following limit:  
Capacitance..........................0.2 μF max  
© National Instruments Corp.  
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NI 9217 Operating Instructions and Specifications  
 
Special Conditions for Hazardous Locations Use in Europe  
This equipment has been evaluated as EEx nC IIC T4 equipment  
under DEMKO Certificate No. 03 ATEX 0324020X. Each module  
is marked  
II 3G and is suitable for use in Zone 2 hazardous  
locations. If you are using the NI 9217 in Gas Group IIC hazardous  
locations or in ambient temperatures of –40 °C Ta 70 °C, you  
must use the device in an NI chassis that has been evaluated as  
EEx nC IIC T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.  
Special Conditions for Marine Applications  
Some modules are Lloyd’s Register (LR) Type Approved for  
marine applications. To verify Lloyd’s Register certification, visit  
ni.com/certification and search for the LR certificate, or  
look for the Lloyd’s Register mark on the module.  
Caution To meet radio frequency emission requirements  
for marine applications, use shielded cables and install  
the system in a metal enclosure. Suppression ferrites  
must be installed on power supply inputs near power  
entries to modules and controllers. Power supply and  
module cables must be separated on opposite sides of the  
enclosure and must enter and exit through opposing  
enclosure walls.  
NI 9217 Operating Instructions and Specifications  
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Connecting the NI 9217  
The NI 9217 has a 16-terminal, detachable screw-terminal  
connector that provides connections for four RTD channels.  
EX0  
0
1
RTD0+  
RTD0–  
COM  
2
3
EX1  
4
RTD1+  
RTD1–  
COM  
5
6
7
EX2  
8
RTD2+  
RTD2–  
COM  
9
10  
11  
12  
13  
14  
15  
EX3  
RTD3+  
RTD3–  
COM  
Figure 2. NI 9217 Terminal Assignments  
© National Instruments Corp.  
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NI 9217 Operating Instructions and Specifications  
 
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. Refer to Figure 3 for an example of the input circuitry for  
one channel of the NI 9217 in 4-wire mode.  
Note 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.  
The NI 9217 channels share a common ground that is isolated from  
other modules in the system. Each channel is filtered and then  
sampled by a 24-bit analog-to-digital converter (ADC).  
NI 9217 Operating Instructions and Specifications  
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Excitation  
Current  
4-Wire EX  
RTD+  
Filtered  
Amplifier  
ADC  
3-wire & 4-wire  
Detection &  
Compensation  
RTD–  
COM  
NI 9217  
Figure 3. Input Circuitry for One Channel of the NI 9217 in 4-Wire Mode  
Each channel has one terminal, RTD+, to which you connect the  
positive lead of the RTD signal and one terminal, RTD–, to which  
you connect the negative lead of the RTD signal. Each channel also  
has a common terminal, COM, and an excitation current source  
terminal, EX. You must connect the COM terminal to RTD–. All  
four COM terminals are internally connected to the isolated ground  
reference of the module. If you are using shielded wiring, connect  
one end of the shield to the COM terminal. Refer to Figure 4 for an  
illustration of how to connect an RTD to the NI 9217.  
© National Instruments Corp.  
9
NI 9217 Operating Instructions and Specifications  
 
 
If you are using a 4-wire RTD, connect EX to the positive lead of  
the RTD. If you are using a 3-wire RTD, do not connect the RTD  
to the EX terminal. 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. Refer to the Specifications section for more information  
about accuracy.  
4-Wire EX  
RTD+  
RTD  
RTD–  
COM  
NI 9217  
Figure 4. Connecting an RTD to the NI 9217  
NI 9217 Operating Instructions and Specifications  
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Wiring for High-Vibration Applications  
If an application is subject to high vibration, National Instruments  
recommends that you either use ferrules to terminate wires to the  
detachable screw-terminal connector or use the NI 9939 backshell  
kit to protect the connections. Refer to Figure 5 for an illustration  
of using ferrules. Refer to Figure 1 for an illustration of the  
NI 9939 connector backshell.  
Figure 5. 16-Terminal Detachable Screw-Terminal Connector with Ferrule  
© National Instruments Corp.  
11 NI 9217 Operating Instructions and Specifications  
 
 
Sleep Mode  
This module supports a low-power sleep mode. Support for sleep  
mode at the system level depends on the chassis that the module is  
plugged into. Refer to the chassis manual for information about  
support for sleep mode. If the chassis supports sleep mode, refer to  
the software help for information about enabling sleep mode. Visit  
ni.com/info and enter cseriesdoc for information about  
C Series documentation.  
Typically, when a system is in sleep mode, you cannot  
communicate with the modules. In sleep mode, the system  
consumes minimal power and may dissipate less heat than it does  
in normal mode. Refer to the Specifications section for more  
information about power consumption and thermal dissipation.  
NI 9217 Operating Instructions and Specifications  
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Specifications  
The following specifications are typical for the range –40 to 70 °C  
unless otherwise noted. All voltages are relative to COM unless  
otherwise noted.  
All specifications given in °C are specific to 100 Ω platinum RTDs.  
Input Characteristics  
Number of channels..........................4 analog input channels  
ADC resolution.................................24 bits  
Type of ADC.....................................Delta-sigma  
Sampling mode.................................Scanned  
Measurement range  
Temperature................................200 to 850 °C  
Resistance...................................0 to 400 Ω  
Common-mode range  
COM-to-earth ground................. 250 Vrms  
Channel-to-COM........................50 mV  
© National Instruments Corp.  
13 NI 9217 Operating Instructions and Specifications  
 
 
Conversion time  
High-resolution mode.................200 ms per channel,  
800 ms total for all channels  
High-speed mode........................2.5 ms per channel,  
10 ms total for all channels  
Temperature accuracy (including noise)1, 4-wire mode  
Maximum  
(–40 to 70 °C)  
Measured Value  
–200 to 150 °C  
150 to 850 °C  
Typical (25 °C)  
0.15 °C  
0.35 °C  
0.20 °C  
1.0 °C  
Temperature accuracy (including noise)1, 3-wire mode  
Maximum  
(–40 to 70 °C)  
Measured Value  
–200 to 150 °C  
150 to 850 °C  
Typical (25 °C)  
0.20 °C  
0.50 °C  
0.30 °C  
1.0 °C  
1
For high-speed mode, add a 0.1 °C error.  
NI 9217 Operating Instructions and Specifications  
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Noise  
High-resolution mode.................0.003 °C  
High-speed mode........................0.02 °C  
Excitation current..............................1 mA per channel  
Noise rejection  
Normal mode (50/60 Hz)  
High-resolution mode ..........85 dB min  
High-speed mode .................None  
Common-mode rejection, channel to earth ground (50/60 Hz)  
High-resolution mode ..........170 dB min  
High-speed mode .................155 dB  
Input bandwidth  
(high-resolution mode) .....................3.3 Hz  
© National Instruments Corp.  
15 NI 9217 Operating Instructions and Specifications  
 
High-resolution filter response1,2  
–0  
–20  
–40  
–60  
–80  
–100  
–120  
–140  
0
60  
120  
180  
240  
Differential Input  
Signal Frequency (Hz)  
1
2
This image is provided courtesy of Linear Technology Corp.  
High-speed filter response has the same characteristics as the high-resolution filter  
response except that the first notch is at 14 kHz.  
NI 9217 Operating Instructions and Specifications  
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Overvoltage protection ..................... 30 V between inputs  
MTBF ...............................................891,597 hours at 25 °C;  
Bellcore Issue 2, Method 1,  
Case 3, Limited Part Stress  
Method  
Note Contact NI for Bellcore MTBF specifications  
at other temperatures or for MIL-HDBK-217F  
specifications.  
Power Requirements  
Power consumption from chassis  
Active mode ...............................350 mW max  
Sleep mode .................................1 mW max  
Thermal dissipation (at 70 °C)  
Active mode ...............................350 mW max  
Sleep mode .................................1 mW max  
© National Instruments Corp.  
17 NI 9217 Operating Instructions and Specifications  
 
Physical Characteristics  
If you need to clean the module, wipe it with a dry towel.  
Screw-terminal wiring ......................16 to 28 AWG copper  
conductor wire with 7 mm  
(0.28 in.) of insulation  
stripped from the end  
Torque for screw terminals ...............0.22 to 0.25 N · m  
(1.95 to 2.21 lb · in.)  
Ferrules .............................................0.25 mm2 to 0.5 mm2  
Weight...............................................142 g (5.0 oz)  
NI 9217 Operating Instructions and Specifications  
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Safety  
Maximum Voltage1  
Connect only voltages that are within the following limits.  
All terminals-to-COM......................... 30 V  
Isolation Voltages  
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.  
1 The maximum voltage that can be applied between any channel or Vsup terminal and  
a COM terminal without damaging the module or other devices.  
© National Instruments Corp.  
19 NI 9217 Operating Instructions and Specifications  
 
Caution Do not connect the NI 9217 to signals or use for  
measurements within Measurement Categories III or IV.  
Safety Standards  
This product is designed to meet the requirements of the following  
standards of safety for electrical equipment for measurement,  
control, and laboratory use:  
IEC 61010-1, EN 61010-1  
UL 61010-1, CSA 61010-1  
Note For UL and other safety certifications, refer to the  
product label or visit ni.com/certification, search  
by module number or product line, and click the  
appropriate link in the Certification column.  
NI 9217 Operating Instructions and Specifications  
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Hazardous Locations  
U.S. (UL) ..........................................Class I, Division 2,  
Groups A, B, C, D, T4;  
Class I, Zone 2,  
AEx nC IIC T4  
Canada (C-UL) .................................Class I, Division 2,  
Groups A, B, C, D, T4;  
Class I, Zone 2,  
Ex nC IIC T4  
Europe (DEMKO).............................EEx nC IIC T4  
Environmental  
National Instruments C Series modules are intended for indoor use  
only but may be used outdoors if installed in a suitable enclosure.  
Refer to the manual for the chassis you are using for more  
information about meeting these specifications.  
Operating temperature  
(IEC 60068-2-1, IEC 60068-2-2) .....40 to 70 °C  
Storage temperature  
(IEC 60068-2-1, IEC 60068-2-2) .....40 to 85 °C  
Ingress protection..............................IP 40  
© National Instruments Corp.  
21 NI 9217 Operating Instructions and Specifications  
 
Operating humidity  
(IEC 60068-2-56)..............................10 to 90% RH,  
noncondensing  
Storage humidity  
(IEC 60068-2-56)..............................5 to 95% RH,  
noncondensing  
Maximum altitude.............................2,000 m  
Pollution Degree (IEC 60664)..........2  
Shock and Vibration  
To meet these specifications, you must panel mount the system and  
either affix ferrules to the ends of the terminal wires or use the  
NI 9939 backshell kit to protect the connections.  
Operating vibration  
Random (IEC 60068-2-64).........5 grms, 10 to 500 Hz  
Sinusoidal (IEC 60068-2-6) .......5 g, 10 to 500 Hz  
Operating shock  
(IEC 60068-2-27)..............................30 g, 11 ms half sine,  
50 g, 3 ms half sine,  
18 shocks at 6 orientations  
NI 9217 Operating Instructions and Specifications  
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Electromagnetic Compatibility  
This product is designed to meet the requirements of the following  
standards of EMC for electrical equipment for measurement,  
control, and laboratory use:  
EN 61326 EMC requirements; Industrial Immunity  
EN 55011 Emissions; Group 1, Class A  
CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A  
Note For EMC compliance, operate this device with  
shielded cabling.  
CE Compliance  
This product meets the essential requirements of applicable  
European directives, as amended for CE markings, as follows:  
2006/95/EC; Low-Voltage Directive (safety)  
2004/108/EC; Electromagnetic Compatibility Directive  
(EMC)  
Note Refer to the Declaration of Conformity (DoC) for  
this product for any additional regulatory compliance  
information. To obtain the DoC for this product, visit  
© National Instruments Corp.  
23 NI 9217 Operating Instructions and Specifications  
 
ni.com/certification, search by module number or  
product line, and click the appropriate link in the  
Certification column.  
Environmental Management  
National Instruments is committed to designing and manufacturing  
products in an environmentally responsible manner. NI recognizes  
that eliminating certain hazardous substances from our products is  
beneficial not only to the environment but also to NI customers.  
For additional environmental information, refer to the NI and the  
Environment Web page at ni.com/environment. This page  
contains the environmental regulations and directives with which  
NI complies, as well as other environmental information not  
included in this document.  
Waste Electrical and Electronic Equipment (WEEE)  
EU Customers At the end of their life cycle, all products  
must be sent to a WEEE recycling center. For more  
information about WEEE recycling centers and National  
Instruments WEEE initiatives, visit ni.com/  
environment/weee.htm.  
NI 9217 Operating Instructions and Specifications  
24  
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ni.com/environment/rohs_chinaDŽ  
about China RoHS compliance, go to  
environment/rohs_china  
(For information  
ni.com/  
.)  
Calibration  
You can obtain the calibration certificate and information about  
calibration services for the NI 9217 at ni.com/calibration.  
Calibration interval ...........................1 year  
© National Instruments Corp.  
25 NI 9217 Operating Instructions and Specifications  
 
Where to Go for Support  
The National Instruments Web site 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.  
National Instruments corporate headquarters is located at  
11500 North Mopac Expressway, Austin, Texas, 78759-3504.  
National Instruments also has offices located around the world to  
help address your support needs. For telephone support in the  
United States, create your service request at ni.com/support  
and follow the calling instructions or dial 512 795 8248. For  
telephone support outside the United States, contact your local  
branch office:  
Australia 1800 300 800, Austria 43 662 457990-0,  
Belgium 32 (0) 2 757 0020, Brazil 55 11 3262 3599,  
Canada 800 433 3488, China 86 21 5050 9800,  
Czech Republic 420 224 235 774, Denmark 45 45 76 26 00,  
Finland 358 (0) 9 725 72511, France 01 57 66 24 24,  
Germany 49 89 7413130, India 91 80 41190000,  
Israel 972 3 6393737, Italy 39 02 41309277, Japan 0120-527196,  
NI 9217 Operating Instructions and Specifications  
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Korea 82 02 3451 3400, Lebanon 961 (0) 1 33 28 28,  
Malaysia 1800 887710, Mexico 01 800 010 0793,  
Netherlands 31 (0) 348 433 466, New Zealand 0800 553 322,  
Norway 47 (0) 66 90 76 60, Poland 48 22 3390150,  
Portugal 351 210 311 210, Russia 7 495 783 6851,  
Singapore 1800 226 5886, Slovenia 386 3 425 42 00,  
South Africa 27 0 11 805 8197, Spain 34 91 640 0085,  
Sweden 46 (0) 8 587 895 00, Switzerland 41 56 2005151,  
Taiwan 886 02 2377 2222, Thailand 662 278 6777,  
Turkey 90 212 279 3031, United Kingdom 44 (0) 1635 523545  
© National Instruments Corp.  
27 NI 9217 Operating Instructions and Specifications  
 
National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the  
Terms of Use section on ni.com/legal for more information about National Instruments trademarks. Other  
product and company names mentioned herein are trademarks or trade names of their respective companies.  
For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software,  
the patents.txt file on your media, or ni.com/patents.  
© 2006–2008 National Instruments Corp. All rights reserved.  
374187C-01  
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