National Instruments NI 9215 User manual

NI-9215 Getting
Started
2022-07-06

Contents
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
NI-9215 with Screw Terminal and NI-9215 with Spring Terminal Safety Voltages
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
NI-9215 with BNC Safety Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Guidelines for Hazardous Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Guidelines for Hazardous Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Compliance and Hazardous Locations Standards. . . . . . . . . . . . . . . . . . . . 6
CE Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electromagnetic Compatibility Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Special Conditions for Marine Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Physical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Preparing the Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
NI 9215 Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Grounded Dierential Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Floating Dierential Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Single-Ended Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connection Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
High-Vibration Application Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Overvoltage Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Where to Go Next. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Product Certifications and Declarations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
NI Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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NI-9215 Getting Started

Overview
This document explains how to connect to the NI-9215. In this document, the
NI-9215 with screw terminal, NI-9215 with spring terminal, and NI-9215 with BNC are
referred to inclusively as the NI-9215.
Note Before you begin, read the NI-9215 Safety, Environmental, and
Regulatory Information document on ni.com/manuals and complete the
soware and hardware installation procedures in your chassis
documentation.
Note The guidelines in this document are specific to the NI-9215. 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
Caution Observe all instructions and cautions in the user documentation.
Using the product in a manner not specified can damage the product and
compromise the built-in safety protection.
Attention Suivez toutes les instructions et respectez toutes les mises
en garde de la documentation d'utilisation. L'utilisation du produit de
toute autre façon que celle spécifiée risque de l'endommager et de
compromettre la protection de sécurité intégrée.
NI-9215 with Screw Terminal and NI-9215 with Spring Terminal
Safety Voltages
Connect only voltages that are within the following limits.
© National Instruments 3
NI-9215 Getting Started

Channel-to-COM ±30 V maximum
Isolation
Channel-to-channel None
Channel-to-earth ground
Continuous 250 V RMS, Measurement Category II
Withstand 2,300 V RMS, verified by a 5 s dielectric withstand test
NI-9215 with BNC Safety Voltages
Connect only voltages that are within the following limits.
AI+-to-AI- ±30 V maximum
Isolation
Channel-to-channel None
Channel-to-earth ground
Continuous 60 V DC, Measurement Category I
Withstand 1,500 V RMS, verified by a 5 s dielectric withstand test
Safety Guidelines for Hazardous Voltages
You can connect hazardous voltages only to the NI 9215 with screw terminal and the
NI 9215 with spring terminal. Do not connect hazardous voltages to the NI 9215 with
BNC.
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.
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NI-9215 Getting Started

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 V DC), 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 with the NI 9215 with screw terminal and
the NI 9981 connector backshell kit with the NI 9215 with spring terminal
to ensure that the terminals are not accessible.
Safety Guidelines for Hazardous Locations
The NI-9215 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 Gc and Ex nA IIC T4 Gc hazardous locations;
and nonhazardous locations only. Follow these guidelines if you are installing the
NI-9215 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, or Zone 2.
Caution The system must be installed in an enclosure certified for the
intended hazardous (classified) location, having a tool secured cover/door,
where a minimum protection of at least IP54 is provided.
© National Instruments 5
NI-9215 Getting Started

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 9215 has been evaluated as Ex nA IIC T4 Gc equipment under
DEMKO 03ATEX 0324020X and is IECEx UL 14.0089X certified. Each NI 9215 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 9215 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 Transient protection shall be provided that is set at a level not
exceeding 140% of the peak rated voltage value of 85 V at the supply
terminals to the equipment.
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.
Safety Compliance and Hazardous Locations Standards
This product is designed to meet the requirements of the following electrical
equipment safety standards for measurement, control, and laboratory use:
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NI-9215 Getting Started

■IEC 61010-1, EN 61010-1
■UL 61010-1, CSA C22.2 No. 61010-1
■EN 60079-0, EN 60079-7
■IEC 60079-0, IEC 60079-7
■UL 60079-0, UL 60079-7
■CSA C22.2 No. 60079-0, CSA C22.2 No. 60079-7
Note For safety certifications, refer to the product label or the Product
Certifications and Declarations section.
CE Compliance
This product meets the essential requirements of applicable European Directives, as
follows:
■2014/35/EU; Low-Voltage Directive (safety)
■2014/30/EU; Electromagnetic Compatibility Directive (EMC)
■2014/34/EU; Potentially Explosive Atmospheres (ATEX)
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.
© National Instruments 7
NI-9215 Getting Started

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 approved for marine (shipboard) applications. To verify marine
approval certification for a product, visit ni.com/product-certifications, search by
model number, and click the appropriate link.
Notice 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.
Physical Characteristics
If you need to clean the module, wipe it with a dry towel.
Tip For two-dimensional drawings and three-dimensional models of the C
Series module and connectors, visit ni.com/dimensions and search by
module number.
Screw-terminal wiring
Gauge 0.2 mm2 to 2.5 mm2 (26 AWG to 14 AWG) copper conductor wire
Wire strip length 13 mm (0.51 in.)
Temperature rating 90 °C, minimum
Torque for screw terminals 0.5 N · m to 0.6 N · m (4.4 lb · in. to 5.3 lb · in.)
Wires per screw terminal One wire per screw terminal; two wires per screw terminal using a
2-wire ferrule
Ferrules 0.25 mm2 to 2.5 mm2 (26 AWG to 14 AWG)
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NI-9215 Getting Started

Spring-terminal wiring
Gauge 0.2 mm2 to 2.5 mm2 (26 AWG to 14 AWG) copper conductor wire
Wire strip length 10 mm (0.39 in.)
Temperature rating 90 °C, minimum
Wires per spring terminal One wire per spring terminal; two wires per spring terminal using a
2-wire ferrule
Ferrules 0.25 mm2 to 2.5 mm2 (26 AWG to 14 AWG)
Connector securement
Securement type Screw flanges provided
Torque for screw flanges 0.2 N · m (1.80 lb · in.)
Weight
NI-9215 with screw terminal 150 g (5.3 oz)
NI-9215 with spring terminal 138 g (4.9 oz)
NI-9215 with BNC 173 g (6.1 oz)
Preparing the Environment
Ensure that the environment in which you are using the NI 9215 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.
© National Instruments 9
NI-9215 Getting Started

Note Refer to the device datasheet on ni.com/manuals for complete
specifications.
NI 9215 Pinout
AI0+
AI0-
AI1+
AI1–
AI2+
AI2–
AI3+
AI3–
NC
COM
0
1
2
3
4
5
6
7
8
9
AI0+
AI0–
AI1+
AI1–
AI2+
AI2–
AI3+
AI3–
NC
COM
0
1
2
3
4
5
6
7
8
9
AI0+
AI0–
AI1+
AI1–
AI2+
AI2–
AI3+
AI3–
Signal Description
AI+ Positive analog input signal connection
AI- Negative analog input signal connection
COM Common reference connection to isolated ground
NC No connection
Table 1. Signal Descriptions
Grounded Dierential Connections
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NI-9215 Getting Started

Voltage
Source
+
–
AI+
AI–
COM
NI 9215 with
Screw/Spring
Terminal
COM NI 9215
with BNC
AI+
AI–
+
–
Floating Dierential Connections
1 MΩ
Resistor NI 9215 with
Screw/Spring
Terminal
AI+
AI–
COM
Voltage
Source
+
–
■Connect the negative lead to COM through a 1 MΩ resistor to keep the signal
source within the common-mode voltage range.
■The NI 9215 with screw terminal and the NI 9215 with spring terminal does
not read data accurately if the signal source is outside of the common-mode
voltage range.
NI 9215
with BNC
AI+
AI–
Voltage
Source
100 kΩ
+
–
The NI 9215 with BNC has internal circuitry that maintains the common mode
voltage range.
© National Instruments 11
NI-9215 Getting Started

Single-Ended Connections
+
–
AI+
AI–
Voltage
Source
NI 9215 with
Screw/Spring
Terminal
COM
Connect the ground signal to COM to keep the signal source within the common-
mode voltage range.
NI 9215
with BNC
AI+
AI–
+
–
Voltage
Source
The NI 9215 with BNC has internal circuitry that maintains the common mode
voltage range.
Connection Guidelines
■ Make sure that devices you connect to the NI-9215 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-9215 with screw terminal or
NI-9215 with spring terminal.
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-9215 with screw terminal or the NI-9215
with spring terminal:
■Use ferrules to terminate wires to the detachable connector.
■Use the NI 9927 backshell kit with the NI-9215 with screw terminal or the
NI 9981 backshell kit with the NI-9215 with spring terminal.
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NI-9215 Getting Started

Overvoltage Protection
The NI-9215 provides overvoltage protection for each channel.
Note Refer to the NI-9215 Specifications 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 9215 Datasheet
NI-RIO Help
LabVIEW FPGA Help
NI 9215 Datasheet
NI-DAQmx Help
LabVIEW Help
Product Certifications and Declarations
Refer to the product Declaration of Conformity (DoC) for additional regulatory
compliance information. To obtain product certifications and the DoC for NI
products, visit ni.com/product-certifications, search by model number, and click the
appropriate link.
© National Instruments 13
NI-9215 Getting Started

NI Services
Visit ni.com/support to find support resources including documentation,
downloads, and troubleshooting and application development self-help such as
tutorials and examples.
Visit ni.com/services to learn about NI service oerings such as calibration options,
repair, and replacement.
Visit ni.com/register to register your NI product. Product registration facilitates
technical support and ensures that you receive important information updates from
NI.
NI corporate headquarters is located at 11500 N Mopac Expwy, Austin, TX,
78759-3504, USA.
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NI-9215 Getting Started
© 2022 National Instruments Corporation.