National Instruments NI 9213 Manuale utente
NI-9213
Getting Started
2023-04-19
NI 9213 Getting Started Guide Map
Overview
This document explains how to connect to the NI 9213.
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 9213.
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 9213 only as described in this document.
Caution Do not operate the NI 9213 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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NI-9213 Getting Started
Hazardous Voltage This icon denotes a warning advising you to take
precautions to avoid electrical shock.
Safety Voltages
Connect only voltages that are within the following limits:
Between any two terminals ±30 V maximum
Isolation
Channel-to-channel None
Channel-to-earth ground
Continuous 250 Vrms, Measurement Category II
Withstand 2,300 Vrms, verified by a 5 s dielectric withstand
test
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 9213 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.
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NI-9213 Getting Started
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 9940 connector backshell kit to ensure that the terminals are not
accessible.
Safety Guidelines for Hazardous Locations
The NI 9213 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 9213 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.
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NI-9213 Getting Started
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 9213 has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO
Certificate No. 07 ATEX 0626664X and is IECEx UL 14.0089X certified. Each NI 9213
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 9213 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.
Caution The enclosure must have a door or cover accessible only by the
use of a tool.
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NI-9213 Getting Started
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.
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.
© National Instruments 7
NI-9213 Getting Started
Preparing the Environment
Ensure that the environment in which you are using the NI 9213 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.
NI 9213 (Black Connector) Pinout
NC
TC0+
TC2+
TC4+
TC6+
TC8+
TC10+
TC12+
TC14+
COM
TC1+
TC3+
TC5+
TC7+
TC9+
TC11+
TC13+
TC15+
TC0–
NC
TC1–
TC3–
TC5–
TC7–
TC9–
TC11–
TC13–
TC15–
TC2–
TC4–
TC6–
TC8–
TC10–
TC12–
TC14–
COM
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NI-9213 Getting Started
Table 1. Signal Descriptions
Signal Description
COM Common reference connection
NC No connection
TC+ Positive thermocouple connection
TC- Negative thermocouple connection
Connecting a Thermocouple
You can connect a shielded thermocouple to the NI 9213.
Figure 1. Connecting a Thermocouple to the NI 9213
Thermocouple
TC–
COM
TC+
Shield
NI 9213
Vreference
Connecting Wires to a Spring-Terminal Connector
What to Use
■NI 9213 spring-terminal connector
■ 0.8 mm2 to 1.0 mm2 (28 AWG to 18 AWG) copper conductor wire with 7 mm
(0.276 in.) of insulation stripped from the end
■Flathead screwdriver with a 2.3 mm x 1.0 mm (0.09 in. x 0.04 in.) blade,
included with the NI 9213
What to Do
Complete the following steps to connect wires to the spring-terminal connector.
© National Instruments 9
NI-9213 Getting Started
1 2 3
1. Insert the screwdriver into a spring clamp activation slot to open the
corresponding connector terminal.
2. Press a wire into the open connector terminal.
3. Remove the screwdriver from the activation slot to clamp the wire into place.
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 9213.
Minimizing Thermal Gradients
Changes in the ambient air temperature near the front connector or a thermocouple
wire conducting heat directly to terminal junctions can cause thermal gradients.
Observe the following guidelines to minimize thermal gradients and improve the
system accuracy.
■Use small-gauge thermocouple wire. Smaller wire transfers less heat to or
from the terminal junction.
■Run thermocouple wiring together near the spring-terminal connector to
keep the wires at the same temperature.
■Avoid running thermocouple wires near hot or cold objects.
■Minimize adjacent heat sources and air flow across the terminals.
■Keep the ambient temperature as stable as possible.
■Make sure the NI 9213 terminals are facing forward or upward.
■Keep the NI 9213 in a stable and consistent orientation.
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NI-9213 Getting Started
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