National Instruments 9220 User manual

GETTING STARTED GUIDE
NI 9220
16 AI, ±10 V, 16 Bit, 100 kS/s/ch Simultaneous

This document explains how to connect to the NI 9220. In this
document, the NI 9220 with spring terminal and the NI 9220 with
DSUB are referred to inclusively as the NI 9220.
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 9220. 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.
Caution Electrostatic Discharge (ESD) can damage
the NI 9220 with spring terminal. To prevent damage,
use industry-standard ESD prevention measures during
installation, maintenance, and operation.
Safety Guidelines
Operate the NI 9220 only as described in this document.
2| ni.com | NI 9220 Getting Started Guide

Caution Do not operate the NI 9220 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.
Hazardous Voltage This icon denotes a warning
advising you to take precautions to avoid electrical
shock with the NI 9220 with spring terminal.
Safety Voltages
Connect only voltages that are within the following limits:
NI 9220 with Spring Terminal Isolation Voltages
Channel-to-channel None
Channel-to-earth ground
Continuous 250 Vrms,
Measurement Category II
Withstand up to
4,000 m
3,000 Vrms, verified by a 5 s
dielectric withstand test
NI 9220 Getting Started Guide | © National Instruments | 3

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 9220 with spring
terminal to signals or use for measurements within
Measurement Categories III or IV.
NI 9220 with DSUB Safety Voltages
Channel-to-COM ±30 V maximum
Isolation
Channel-to-COM None
Channel-to-earth ground
Continuous 60 VDC, Measurement
Category I
Withstand up to
2,000 m
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
4| ni.com | NI 9220 Getting Started Guide

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 9220 with DSUB to
signals or use for measurements within Measurement
Categories II, III, or IV.
Safety Guidelines for Hazardous Voltages
You can connect hazardous voltages only to the
NI 9220 with spring terminal. Do not connect hazardous voltages
to the NI 9220 with DSUB.
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.
NI 9220 Getting Started Guide | © National Instruments | 5

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 9940 connector backshell kit to ensure that the
terminals are not accessible.
Safety Guidelines for Hazardous Locations
The NI 9220 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 9220 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.
6| ni.com | NI 9220 Getting Started Guide

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.
Caution For Division 2 and Zone 2 applications,
connected signals must be within the following limits.
Capacitance 0.2 µF maximum
Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9220 has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO 12 ATEX 1202658X and is IECEx UL 14.0089X
certified. Each NI 9220 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 9220 in Gas Group IIC
hazardous locations, you must use the device in an NI chassis that
NI 9220 Getting Started Guide | © National Instruments | 7

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/EN 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.
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
8| ni.com | NI 9220 Getting Started Guide

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.
Caution To ensure the specified EMC performance of
the NI 9220 with DSUB, the length of all I/O cables
must be no longer than 30 m (100 ft).
Caution To ensure the specified EMC performance,
operate this product only with shielded cables and
accessories. Do not use unshielded cables or
accessories unless they are installed in a shielded
enclosure with properly designed and shielded input/
NI 9220 Getting Started Guide | © National Instruments | 9

output ports and connected to the product using a
shielded cable. If unshielded cables or accessories are
not properly installed and shielded, the EMC
specifications for the product are no longer guaranteed.
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.
10 | ni.com | NI 9220 Getting Started Guide

Preparing the Environment
Ensure that the environment in which you are using the NI 9220
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
For NI 9220 with
spring terminal
4,000 m
For NI 9220 with
DSUB
2,000 m
Indoor use only.
Note Refer to the device datasheet on ni.com/manuals
for complete specifications.
NI 9220 Getting Started Guide | © National Instruments | 11

NI 9220 Pinout
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
AI0- AI0+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
AI1+
AI2+
AI3+
AI4+
AI5+
AI6+
AI7+
COM
COM
AI8+
AI9+
AI10+
AI11+
AI12+
AI13+
AI14+
AI15+
COM
AI1-
AI2-
AI3-
AI4-
AI5-
AI6-
AI7-
COM
COM
AI8-
AI9-
AI10-
AI11-
AI12-
AI13-
AI14-
AI15-
AI0+
AI1+
AI3+
AI5+
AI7+
AI9+
AI11+
AI13+
AI15+
COM
AI2+
AI4+
AI6+
AI8+
AI10+
AI12+
AI14+
COM
AI1-
AI0-
AI2-
AI4-
AI6-
AI8-
AI10-
AI12-
AI14-
COM
AI3-
AI5-
AI7-
AI9-
AI11-
AI13-
AI15-
COM
12 | ni.com | NI 9220 Getting Started Guide

Table 1. Signal Descriptions
Signal Description
AI+ Positive analog input signal connection
AI- Negative analog input signal connection
COM Common reference connection to isolated ground
Grounded Differential Connections
Voltage
Source
+
–
AI+
AI–
COM
NI 9220
NI 9220 Getting Started Guide | © National Instruments | 13

Floating Differential Connections
NI 9220
AI+
AI–
COM
Voltage
Source
1 MΩ
Resistor
+
–
Connect the negative lead to COM through a 1 MΩ resistor to
keep the signal source within the common-mode voltage range.
The NI 9220 does not read data accurately if the signal source is
outside of the common-mode voltage range.
14 | ni.com | NI 9220 Getting Started Guide

Single-Ended Connections
+
–
AI+
AI–
COM
Voltage
Source
NI 9220
Connect the ground signal to COM to keep the signal source
within the common-mode voltage range.
NI 9220 Connection Guidelines
• Make sure that devices you connect to the NI 9220 are
compatible with the module specifications.
• You must use 2-wire ferrules to create a secure connection
when connecting more than one wire to a single terminal on
the NI 9220 with spring terminal.
NI 9220 Getting Started Guide | © National Instruments | 15

• For the NI 9220 with spring terminal, push the wire into the
terminal when using a solid wire or a stranded wire with a
ferrule.
• For the NI 9220 with spring terminal, open the terminal by
pressing the push button when using stranded wire without a
ferrule.
High-Vibration Application Connections
If your application is subject to high vibration, NI recommends
that you use the NI 9940 backshell kit to protect connections to
the NI 9220 with spring terminal.
Overvoltage Protection
The NI 9220 provides overvoltage protection for each channel.
Note Refer to the device datasheet on ni.com/manuals
for more information about overvoltage protection.
16 | ni.com | NI 9220 Getting Started Guide

Where to Go Next
RELATED INFORMATION
C Series Documentation
& Resources
ni.com/info cseriesdoc
Services
ni.com/services
CompactRIO
Located at ni.com
/
manuals Installs with the software
NI CompactDAQ
NI 9220 Datasheet
NI-RIO Help
LabVIEW FPGA Help
NI 9220 Datasheet
NI-DAQmx Help
LabVIEW Help
NI 9220 Getting Started Guide | © National Instruments | 17

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.
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 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.
18 | ni.com | NI 9220 Getting Started Guide

NI corporate headquarters is located at
11500 North Mopac Expressway, Austin, Texas, 78759-3504. NI
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 9220 Getting Started Guide | © National Instruments | 19

Refer to the NI Trademarks and Logo Guidelines at ni.com/trademarks for information on NI
trademarks. Other product and company names mentioned herein are trademarks or trade names
of their respective companies. For patents covering NI 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/patents. You can find information about end-user
license agreements (EULAs) and third-party legal notices in the readme file for your NI product.
Refer to the Export Compliance Information at ni.com/legal/export-compliance for the NI
global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/
export data. NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF
THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS.
U.S. Government Customers: The data contained in this manual was developed at private
expense and is subject to the applicable limited rights and restricted data rights as set forth in FAR
52.227-14, DFAR 252.227-7014, and DFAR 252.227-7015.
© 2017 National Instruments. All rights reserved.
378023A-01 Jan17