National Instruments NI 9265 User manual

GETTING STARTED GUIDE
NI 9265
4-Channel, 0 mA to 20 mA, 16-Bit Analog
Output Module
This document explains how to connect to the NI 9265.

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 9265. 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 9265 only as described in this document.
Caution Do not operate the NI 9265 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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Safety Voltages
Connect only voltages that are within the following limits.
Channel-to-COM or
Vsup-to-COM
±40 V maximum1
Isolation Voltages
Channel-to-channel None
Channel-to-earth ground, Vsup-to-earth ground, or
COM-to-earth ground
Continuous
up to 2,000 m altitude 250 Vrms,
Measurement Category II
up to 5,000 m altitude 60 VDC,
Measurement Category I
1The maximum voltage that can be applied between any channel or Vsup
terminal and a COM terminal without damaging the module or other devices.
NI 9265 Getting Started Guide | © National Instruments | 3

Withstand
up to 2,000 m altitude 2,300 Vrms, verified by a 5 s
dielectric withstand test
up to 5,000 m altitude 1,000 Vrms, verified by a 5 s
dielectric withstand test
Measurement Category I is for measurements performed on
circuits not directly connected to the electrical distribution system
referred to as MAINS voltage. MAINS is a hazardous live
electrical supply system that powers equipment. This category is
for measurements of voltages from specially protected secondary
circuits. Such voltage measurements include signal levels, special
equipment, limited-energy parts of equipment, circuits powered
by regulated low-voltage sources, and electronics.
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.
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Note Do not connect the NI 9265 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
properly insulated from human contact. You must use
the NI 9927 connector backshell kit to ensure that the
terminals are not accessible.
NI 9265 Getting Started Guide | © National Instruments | 5

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 nA IIC T4
and Ex nA 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.
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 Division 2 and Zone 2 applications,
install the system in an enclosure rated to at least IP54
as defined by IEC/EN 60079-15.
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Caution For Division 2 and Zone 2 applications,
connected signals must be within the following limits.
Capacitance 80 nF max max
Inductance 0.2 H max max
Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9265 has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO Certificate No. 03 ATEX 0324020X and is
IECEx 14.0089X certified. Each NI 9265 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 9265
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.
Caution The system shall only be used in an area of
not more than Pollution Degree 2, as defined in
IEC 60664-1.
NI 9265 Getting Started Guide | © National Instruments | 7

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
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.
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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.
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
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.
NI 9265 Getting Started Guide | © National Instruments | 9

Preparing the Environment
Ensure that the environment in which you are using the NI 9265
meets the following specifications.
Operating temperature
(IEC 60068-2-1, IEC 60068-2-2)
-40 °C to 70 °C
Operating humidity
(IEC 60068-2-78)
10% RH to 90% RH,
noncondensing
Pollution Degree 2
Maximum altitude 2,000 m
Indoor use only.
Note Refer to the device datasheet on ni.com/manuals
for complete specifications.
Connecting the NI 9265
The NI 9265 provides connections for four analog output
channels.
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Figure 1. NI 9265 Pinout
AO0
COM0
AO1
COM1
AO2
COM2
AO3
COM3
Vsup
Power Supply COM
0
1
2
3
4
5
6
7
8
9
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.
NI 9265 Getting Started Guide | © National Instruments | 11

NI 9265 Signals
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 NI 9265 also has a
terminal for an external power supply, Vsup, and an external
power supply common terminal, Power Supply COM.
Connecting a Load
You can connect a load to each channel of the NI 9265.
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Figure 2. Connecting a Load to the NI 9265
AO
COM
NI 9265
Isolated DAC
+
_
Vsup
Power
Supply
COM
Load
Protection
DC/DC
External
Power Supply
Connecting an External Power Supply
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.
NI 9265 Getting Started Guide | © National Instruments | 13

When the module powers on, the channels output the startup
current.
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 9265:
• Use ferrules to terminate wires to the detachable connector.
• Use the NI 9927 backshell kit with the NI 9265 with screw
terminal or the NI 9981 backshell kit with the NI 9265 with
spring terminal.
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Where to Go Next
Located at ni.com/manuals Installs with the software
CompactRIO NI CompactDAQ
RELATED INFORMATION
NI 9265 Datasheet
NI-RIO Help
LabVIEW FPGA Help
NI 9265 Datasheet
NI-DAQmx Help
LabVIEW Help
C Series Documentation
& Resources
ni.com/info cseriesdoc
Services
ni.com/services
NI 9265 Getting Started Guide | © National Instruments | 15

Worldwide Support and Services
The National Instruments 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 National Instruments
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.
16 | ni.com | NI 9265 Getting Started Guide

National Instruments corporate headquarters is located at
11500 North Mopac Expressway, Austin, Texas, 78759-3504.
National Instruments 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.
NI 9265 Getting Started Guide | © National Instruments | 17

Refer to the NI Trademarks and Logo Guidelines at ni.com/trademarks for information on
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/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/
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