NI NI-9222 Manual de usuario
NI-9222
2023-04-25
Contents
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Guidelines for Hazardous Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electromagnetic Compatibility Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Cable Requirements for EMC Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Special Conditions for Marine Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Preparing the Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
NI 9222 Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Grounded Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Floating Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
NI 9222 Connection Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Wiring for High-Vibration Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Overvoltage Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Where to Go Next. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Worldwide Support and Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
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NI-9222
Overview
This document explains how to connect to the NI 9222.
Note Before you begin, complete the soware and hardware installation
procedures in your chassis documentation.
Note The guidelines in this document are specific to the NI 9222. 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.
© 2016National Instruments Corporation. All rights reserved. Refer to the <National
Instruments>\_Legal Information directory for information about NI copyright,
patents, trademarks, warranties, product warnings, and export compliance.
Safety Guidelines
Operate the NI 9222 only as described in this document.
Caution Do not operate the NI 9222 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.
© National Instruments 3
NI-9222
Safety Voltages
Connect only voltages that are within the following limits:
Isolation
Channel-to-channel
Continuous 60 VDC, Measurement Category I
Withstand 1000 Vrms, verified by a 5 s dielectric withstand
test
Channel-to-earth ground
Continuous 60 VDC, Measurement Category I
Withstand 1000 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.
Caution Do not connect the NI 9222 to signals or use for measurements
within Measurement Categories II, III, or IV.
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 installations of Measurement Categories CAT II, CAT III, or
CAT IV.
Safety Guidelines for Hazardous Locations
The NI 9222 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
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NI-9222
NI 9222 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 o or the area is known to be nonhazardous.
Caution Do not remove modules unless power has been switched o 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.
Special Conditions for Hazardous Locations Use in Europe and
Internationally
The NI 9222 with screw terminal has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO Certificate No. 07 ATEX 0626664X and is IECEx UL 14.0089X certified.
The NI 9222 with BNC has been evaluated as Ex nA IIC T4 Gc equipment under
DEMKO Certificate No. 12 ATEX 1202658X and is IECEx UL 14.0089X certified. Each
NI 9222 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 9222 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.
© National Instruments 5
NI-9222
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.
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.
Cable Requirements for EMC Compliance
Select and install cables for the NI 9222 with screw terminal in accordance with the
following requirements:
■Connect the cable shield to the chassis ground (grounding screw of the
chassis) using the shortest length of wire possible.
■Use shielded, twisted-pair cables (Belden 9451 or equivalent).
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NI-9222
Figure 1. Cable Connections for NI 9222 with screw terminal for EMC Compliance
NI 9222
Shield
AI0+
AI0–
Signal
Source
Shield
AI1+
AI1–
Signal
Source
Shield
AI2+
AI2–
Signal
Source
Shield
AI3+
AI3–
Signal
Source
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.
Preparing the Environment
Ensure that the environment in which you are using the NI 9222 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 5,000 m
© National Instruments 7
NI-9222
Indoor use only.
Note Refer to the device datasheet on ni.com/manuals for complete
specifications.
NI 9222 Pinout
Table 1. Signal Descriptions
Signal Description
AI+ Positive analog input signal connection
AI- Negative analog input signal connection
Grounded Connections
NI 9222
AI–
+
–
AI+
Signal
Source
Floating Connections
NI 9222
Signal
Source
AI–
+
–
AI+
NI 9222 Connection Guidelines
■Make sure that devices you connect to the NI 9222 are compatible with the
module specifications.
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NI-9222
■You must use 2-wire ferrules to create a secure connection when connecting
more than one wire to a single terminal on the NI 9222 with screw terminal.
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 9222 with screw terminal:
■Use ferrules to terminate wires to the detachable connector.
■Use the NI 9971 backshell kit.
Overvoltage Protection
The NI 9222 provides overvoltage protection for each channel.
Note Refer to the device datasheet on ni.com/manuals for more
information about overvoltage protection.
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 9222 Datasheet
NI-RIO Help
LabVIEW FPGA Help
NI 9222 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.
© National Instruments 9
NI-9222
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 aords 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.
NI corporate headquarters is located at 11500 North Mopac Expressway, Austin,
Texas, 78759-3504. NI also has oices 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 Oices section of ni.com/niglobal to access the branch oice
websites, which provide up-to-date contact information, support phone numbers,
email addresses, and current events.
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NI-9222
© 2023 National Instruments Corporation.
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