NI 9203 User manual

NI-9208

GETTING STARTED GUIDE
NI 9203
8-Channel, ±20 mA, 16-Bit Analog Input Module
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ni.com/manuals

This document explains how to connect to the NI 9203. In this
document, the NI 9203 with screw-terminal and the NI 9203 with
spring-terminal are referred to inclusively as the NI 9203.
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 9203. 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 9203 only as described in this document.
Caution Do not operate the NI 9203 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
2| ni.com | NI 9203 Getting Started Guide

way. If the product is damaged, return it to NI for
repair.
Safety Voltages
Connect only voltages that are within the following limits.
...........................................................Channel-to-COM ±30 VDC max
Isolation Voltages
...........................................................Channel-to-channel None
Channel-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
Withstand
...........................................up to 2,000 m
altitude
2,300 Vrms, verified by a
5 s withstand test
...........................................up to 5,000 m
altitude
1,000 Vrms, verified by a
5 s withstand test
NI 9203 Getting Started Guide | © National Instruments | 3

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 9203 to signals or use
for measurements within Measurement Categories II,
III, or IV.
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.
Caution Do not connect the NI 9203 to signals or use
for measurements within Measurement Categories III
or IV.
4| ni.com | NI 9203 Getting Started Guide

Safety Guidelines for Hazardous Locations
The NI 9203 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 9203 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.
NI 9203 Getting Started Guide | © National Instruments | 5

Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9203 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 9203 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 9203
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.
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.
6| ni.com | NI 9203 Getting Started Guide

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.
NI 9203 Getting Started Guide | © National Instruments | 7

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.
8| ni.com | NI 9203 Getting Started Guide

Preparing the Environment
Ensure that the environment in which you are using the NI 9203
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
Indoor use only.
Note Refer to the device datasheet on ni.com/manuals
for complete specifications.
Connecting the NI 9203
The NI 9203 provides connections for 8 analog input channels.
NI 9203 Getting Started Guide | © National Instruments | 9

Figure 1. NI 9203 Pinout
AI0
AI1
AI2
AI3
AI4
AI5
AI6
AI7
NC
COM
0
1
2
3
4
5
6
7
8
9
Each channel has an AI terminal to which you can connect a
current signal. The NI 9203 also has a common terminal, COM,
that is internally connected to the isolated ground reference of the
module.
10 | ni.com | NI 9203 Getting Started Guide

Overvoltage Protection
The NI 9203 provides overvoltage protection for each channel.
Only one channel can be in an overvoltage condition at a time.
Refer to the device datasheet on ni.com/manuals for complete
specifications.
Connecting Single-Ended Current Signals
You can connect single-ended current signals to the NI 9203.
Figure 2. Connecting Single-Ended Current Signals to the NI 9203
COM
AI0
Voltage
Source
NI 9203
AI1
Sensor
Sensor
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 9203.
NI 9203 Getting Started Guide | © National Instruments | 11

Where to Go Next
Located at ni.com/manuals Installs with the software
RELATED INFORMATION
C Series Documentation
& Resources
ni.com/info
Services
ni.com/services
CompactRIO NI CompactDAQ
NI 9203 Datasheet
NI-RIO Help
LabVIEW FPGA Help
NI 9203 Datasheet
NI-DAQmx Help
LabVIEW Help
cseriesdoc
12 | ni.com | NI 9203 Getting Started Guide

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.
NI 9203 Getting Started Guide | © National Instruments | 13

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
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Refer to the NI Trademarks and Logo Guidelines at ni.com/trademarks for information on
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the patents.txt file on your media, or the National Instruments Patent Notice at ni.com/
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374070E-01 Apr15