Farnell NI-9214 User manual

NI-9214 Getting
Started
2022-07-11

Contents
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Guidelines for Hazardous Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Guidelines for Hazardous Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electromagnetic Compatibility Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Special Conditions for Marine Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preparing the Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
TB-9214 Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermocouple Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
NI 9214 Connection Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Minimizing Thermal Gradients. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Wiring the TB-9214. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installing the TB-9214. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Where to Go Next. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
NI Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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NI-9214 Getting Started

Overview
This document explains how to connect to the NI-9214.
Note Before you begin, read the NI-9214 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-9214. 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.
Safety Guidelines for Hazardous Voltages
Caution Ensure that hazardous voltage wiring is performed only by
qualified personnel adhering to local electrical standards.
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NI-9214 Getting Started

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 V DC), you must ensure that devices and circuits connected to the
module are properly insulated from human contact. You must use the
TB-9214 included with the NI 9214 to ensure that the terminals are not
accessible.
Note The TB-9214 contains a plastic insert to prevent accidental wire
contact with the metal enclosure.
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 V RMS, Measurement Category II
Withstand 2,300 V RMS, verified by a 5 s dielectric withstand test
Safety Guidelines for Hazardous Locations
The NI-9214 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
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NI-9214 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.
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 9214 has been evaluated as Ex nA IIC T4 Gc equipment under
DEMKO 07ATEX 0626664X and is IECEx UL 14.0089X certified. Each NI 9214 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 9214 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.
© National Instruments 5
NI-9214 Getting Started

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.
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.
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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.
Preparing the Environment
Ensure that the environment in which you are using the NI 9214 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.
TB-9214 Pinout
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NI-9214 Getting Started

TC0+
TC2+
TC2-
TC3+
TC3-
TC4+
TC4-
TC7+
TC7-
TC8+
TC8-
TC9+
TC9-
TC10+
TC10-
TC11+
TC11-
TC12+
TC12-
TC13+
TC13-
TC14+
TC14-
TC15+
TC15-
TC0-
TC1+
TC1-
TC5+
TC5-
TC6+
TC6-
COM
COM
Signal Description
COM Common reference connection
TC+ Positive thermocouple connection
TC- Negative thermocouple connection
Table 1. Signal Descriptions
Thermocouple Connections
Thermocouple
TC-
COM
TC+
Shield
TB-9214 NI 9214
Ground
Lug
NI 9214 Connection Guidelines
■ Make sure that devices you connect to the NI-9214 are compatible with the
module specifications.
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■The shield grounding methodology can vary depending on the application.
■Refer to your thermocouple documentation or the thermocouple wire spool
to determine which wire is the positive lead and which wire is the negative
lead.
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 TB-9214 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-9214 terminals are facing forward or upward.
■Keep the NI-9214 in a stable and consistent orientation.
■Allow the thermal gradients to settle aer a change in system power or in
ambient temperature. A change in system power can happen when the
system powers on, the system comes out of sleep mode, or you insert/remove
modules.
■If possible, use the foam pad in the TB-9214 opening to restrict airflow
around the terminals.
Wiring the TB-9214
What to Use
■ TB-9214
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NI-9214 Getting Started

■ 0.05 mm2 to 0.5 mm2 (30 AWG to 20 AWG) wire with 5.1 mm (0.2 in.) of the
inner insulation stripped and 51 mm (2.0 in.) of the outer insulation stripped
■Zip tie
■Screwdriver
What to Do
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1 2
34
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NI-9214 Getting Started

1. Loosen the captive screws on the TB-9214 and remove the top cover and foam
pad.
2. Insert the stripped end of the wire fully into the appropriate terminal and
tighten the screw for the terminal. Make sure no exposed wire extends past
the screw terminal.
3. Route the wire through the TB-9214 opening, remove slack from the wiring,
and secure the wires using a zip tie.
4. Replace the foam pad in the TB-9214 opening, reinstall the top cover, and
tighten the captive screws.
Installing the TB-9214
What to Do
1. Connect the TB-9214 to the NI-9214 front connector.
2. Tighten the jackscrews to a maximum torque of 0.4 N · m (3.6 lb · in.). Do not
overtighten the jackscrews.
Where to Go Next
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.
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NI-9214 Getting Started

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-9214 Getting Started
© 2022 National Instruments Corporation.