National Instruments Network Card NI 9265 User Manual

OPERATING INSTRUCTIONS AND SPECIFICATIONS  
NI 9265  
4-Channel, 0–20 mA, 16-Bit Analog Current Output  
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 9932  
connector backshell kit to ensure that the terminals are  
not accessible.  
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Figure 1 shows the NI 9932 connector backshell.  
Figure 1. NI 9932 Connector Backshell  
Safety Guidelines for Hazardous Locations  
The NI 9265 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  
only. Follow these guidelines if you are installing the NI 9265 in a  
potentially explosive environment. Not following these guidelines  
may result in serious injury or death.  
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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 limits:  
Capacitance..........................80 nF max  
Inductance............................0.2 H max  
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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 9265 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.  
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Connecting the NI 9265  
The NI 9265 has a 10-terminal, detachable screw-terminal  
connector that provides connections for 4 analog output channels.  
AO0  
COM0  
AO1  
COM1  
AO2  
COM2  
AO3  
COM3  
Vsup  
Power Supply COM  
0
1
2
3
4
5
6
7
8
9
Figure 2. NI 9265 Terminal Assignments  
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The NI 9265 has four analog output channels, AO. Each channel  
has a common terminal, COM, that is internally connected to the  
isolated ground reference of the module. The 9265 also has a  
terminal for an external power supply, Vsup, and an external power  
supply common terminal, Power Supply COM.  
Each AO channel has a digital-to-analog converter (DAC) that  
produces a current signal. Each channel also has overvoltage and  
short-circuit protection. Refer to the Specifications section for  
more information about the overvoltage and short-circuit  
protection. Refer to Figure 3 for an illustration of the output  
circuitry for one channel of the NI 9265.  
You can connect a load to each channel of the NI 9265. Connect the  
positive lead of the load to the AO terminal. Connect the ground of  
the load to the corresponding COM terminal. Refer to Figure 3 for  
an illustration of how to connect a load to the NI 9265.  
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External  
Power Supply  
+
_
Power  
Supply  
COM  
Vsup  
DC/DC  
Isolated DAC  
AO  
Protection  
Load  
COM  
NI 9265  
Figure 3. Connecting a Load to the NI 9265  
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 9265.  
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You must connect an external power supply to the NI 9265. This  
power supply provides the current for the devices you connect to  
the module. Connect the positive lead of the power supply to the  
supply terminal, Vsup, and the negative lead of the power supply to  
Power Supply COM.  
When the module powers on, the channels output the startup  
current. Refer to the Specifications section for more information  
about startup current. Refer to the software help for information  
about configuring startup output states in software. Visit  
ni.com/info and enter cseriesdoc for information about  
C Series documentation.  
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 9932 backshell  
kit to protect the connections. Refer to Figure 4 for an illustration  
of using ferrules. Refer to Figure 1 for an illustration of the  
NI 9932 connector backshell.  
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Figure 4. 10-Terminal Detachable Screw-Terminal Connector with Ferrule  
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.  
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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.  
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.  
Output Characteristics  
Number of channels..........................4 analog output channels  
DAC resolution .................................16 bits  
Type of DAC.....................................String  
Power-on output state .......................0  
Startup current ..................................0.0 mA  
Power-down current..........................0.0 mA  
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Full-scale output current  
Minimum....................................20.1 mA  
Typical........................................20.6 mA  
Maximum ...................................21.0 mA  
Output range .....................................0 to 20 mA  
Compliance voltage ..........................12 VDC max  
Maximum load..................................600 Ω  
Accuracy  
Percent of  
Range*  
(Gain Error) (Offset Error)  
Percent of  
Reading  
Measurement Conditions  
Calibrated, typ (25 °C, 5 °C)  
Calibrated, max (–40 to 70 °C)  
Uncalibrated, typ (25 °C, 5 °C)  
Uncalibrated, max (–40 to 70 °C)  
* Range equals 0 to 20.6 mA  
0.11%  
0.25%  
0.35%  
0.85%  
0.19%  
0.4%  
1.4%  
2.5%  
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Stability  
Gain drift ....................................30 ppm/°C  
Offset drift ..................................45 ppm/°C  
External power supply  
voltage range (Vsup) ..........................9–36 VDC  
Protection (AO, Vsup  
)
Overvoltage ................................ 40 V  
Short-circuit................................Indefinitely  
Update time  
Number of  
Channels  
Update Time for R Series  
Expansion Chassis  
Update Time for  
Any Other Chassis  
One  
3.5 μs  
6.5 μs  
9 μs  
3 μs  
5 μs  
Two  
Three  
Four  
7.5 μs  
9.5 μs  
12 μs  
Noise.................................................600 nArms  
Crosstalk ...........................................90 dB  
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Settling time (to 1 LSB)  
Full-scale step.............................10 μs  
1 mA step ...................................5 μs  
Glitch energy ....................................Unmeasurable  
Monotonicity.....................................16 bits  
DNL..................................................1 LSB max  
INL.................................................... 16 LSB  
MTBF ...............................................1,014,487 hours at 25 °C;  
Bellcore Issue 6, 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 ...............................230 mW max  
Sleep mode .................................25 μW max  
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Thermal dissipation (at 70 °C)  
Active mode ...............................1.5 W max  
Sleep mode .................................10 mW max  
Power consumption from external power supply  
Active mode ...............................1.4 W max  
Sleep mode .................................10 mW  
Physical Characteristics  
If you need to clean the module, wipe it with a dry towel.  
Screw-terminal wiring ......................12 to 24 AWG copper  
conductor wire with 10 mm  
(0.39 in.) of insulation  
stripped from the end  
Ferrules .............................................0.25 mm2 to 2.5 mm2  
Torque for screw terminals ...............0.5 to 0.6 N · m  
(4.4 to 5.3 lb · in.)  
Weight...............................................136 g (4.8 oz)  
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Safety  
Maximum Voltage1  
Connect only voltages that are within the following limits.  
Channel-to-COM or Vsup-to-COM... 40 V max  
Isolation Voltages  
Channel-to-channel...........................No isolation between  
channels  
Channel-to-earth ground, Vsup-to-earth ground,  
or COM-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  
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.  
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that provided by a standard wall outlet, for example, 115 V for U.S.  
or 230 V for Europe.  
Caution Do not connect the NI 9265 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.  
Hazardous Locations  
U.S. (UL) ..........................................Class I, Division 2,  
Groups A, B, C, D, T4;  
Class I, Zone 2,  
AEx nC IIC T4  
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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  
Operating humidity  
(IEC 60068-2-56)..............................10 to 90% RH,  
noncondensing  
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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 9932 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  
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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  
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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.  
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ni.com/  
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Calibration  
You can obtain the calibration certificate and information about  
calibration services for the NI 9265 at ni.com/calibration.  
Calibration interval ...........................1 year  
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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,  
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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  
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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 CD, or ni.com/patents.  
© 2005–2008 National Instruments Corp. All rights reserved.  
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