NI NI9213 16-channel thermocouple module Datasheet

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Requirements and Compatibility | Ordering Information | Detailed Specifications
For user manuals and dimensional drawings, visit the product page resources tab on ni.com.
Last Revised: 2012-08-31 15:35:38.0
16-Channel Thermocouple Module
NI 9213
Built-in CJC (cold-junction compensation)
Autozero channel for offset error compensation
High-speed mode for up to 1,200 S/s (aggregate)
J, K, T, E, N, B, R, and S types supported
250 Vrms channel-to-earth ground safety isolation
Included backshell kit (NI 9940) for strain relief
24-bit ADC for up to 0.02 °C measurement sensitivity
Overview
The NI 9213 is a high-density thermocouple module for NI C Series carriers designed for higher-channel-count systems. With this module, you can add thermocouples to
mixed-signal test systems without taking up too many slots.
The NI 9213 is similar to the NI 9211 four-channel thermocouple module except it features four times the channel count and almost 100 times the sample rate.
You can use up to eight NI 9213 modules in an NI CompactDAQ chassis or CompactRIO chassis for 128 thermocouple measurements in a single chassis, or deploy a single
module in any of the USB, Ethernet, or Wi-Fi carriers for C Series modules.
Each shipping kit contains:
-NI 9213 module with spring-terminal connectivity
-NI 9940 backshell for cabling and strain relief
-Spring-terminal tool for signal wire insertion
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Requirements and Compatibility
OS Information
Driver Information
Software Compatibility
Real-Time OS
NI-DAQmx
LabVIEW
Windows
NI-RIO
LabWindows/CVI
Measurement Studio
SignalExpress
Visual Basic
Visual C#
Visual C++
Visual Studio
Visual Studio .NET
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Comparison Tables
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Thermocouple Module
Channels
Sample Rate
Resolution
Feature
NI 9213
16
1,200 S/s
24-bit
Lowest cost/channel
NI 9219
4
50 S/s/ch
24-bit
Channel-to-channel isolation
NI 9211
4
14 S/s
24-bit
Low-channel count
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Application and Technology
Channel Density for High-Channel-Count Systems
Temperature measurements can vary greatly over the different components in a machine, the surface of a device, or the volume of a given space. By taking more temperature
measurements, you can better quantify the thermal gradients and achieve more accurate test results. The NI 9213 was designed with density in mind to enable a large number of
thermocouple channels in a compact space. With up to eight NI 9213 modules installed in an NI CompactRIO or NI CompactDAQ chassis, you can measure up to 128
thermocouples in a system that fits inside a 9 by 9 by 26 cm box. For even more portable temperature measurement systems, you can install the NI 9213 into one of the single
module carriers for NI C Series modules to make 16-channel thermocouple measurements over USB, Ethernet, or Wi-Fi (802.11b/g).
CJC and Autozero for a More Accurate Measurement
The NI 9213 has built-in cold-junction compensation (CJC) to eliminate error caused by the physical connection of the sensor to the instrumentation. The contact of two dissimilar
metals creating a voltage potential is the principle on which thermocouples are designed, and, as such, the contact of the dissimilar thermocouple metal with the spring terminal
must be removed from the calculation. This is done through a process known as cold-junction compensation, with the cold junction being the mating of the sensor to the
instrument. All NI instrumentation designed for thermocouple measurement contains CJC circuitry including the NI 9211, NI 9219, and NI 9213. In addition to CJC, the NI 9213
features an extra, internal-only channel known as the autozero channel. By measuring the autozero channel at the beginning of each channel scan, you can eliminate further
offset errors to provide a more accurate temperature measurement.
C Series Compatibility
The NI C Series hardware family features more than 50 measurement modules and several chassis and carriers for deployment. With this variety of modules, you can mix and
match measurements such as temperature, acceleration, flow, pressure, strain, acoustic, voltage, current, digital, and more to create a custom system. Install the modules in one
of several carriers to create a single module USB, Ethernet, or Wi-Fi system, or combine them in chassis such as NI CompactDAQ and CompactRIO to create a
mixed-measurement system with synchronized measurements. You can install up to eight modules in a simple, complete NI CompactDAQ USB data acquisition system to
synchronize all of the analog output, analog input, and digital I/O from the modules. For a system without a PC, CompactRIO holds up to eight modules and features a built-in
processor, RAM, and storage for an embedded data logger or control unit. For higher-speed control, CompactRIO chassis incorporate a field-programmable gate array (FPGA)
that you can program with NI LabVIEW software to achieve silicone-speed processing on I/O data from C Series modules.
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Ordering Information
For a complete list of accessories, visit the product page on ni.com.
Products
Part Number Recommended Accessories
Part Number
780493-01
779567-01
NI 9213 Thermocouple Input Module
NI 9213
Requires: 1 Connectivity Accessories ;
Connectivity Accessories: screwTerminal - NI 9940 Strain relief, operator protection (qty 1)
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Software Recommendations
LabVIEW Professional Development System for Windows
Advanced software tools for large project development
Automatic code generation using DAQ Assistant and Instrument I/O Assistant
Tight integration with a wide range of hardware
Advanced measurement analysis and digital signal processing
Open connectivity with DLLs, ActiveX, and .NET objects
Capability to build DLLs, executables, and MSI installers
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Support and Services
System Assurance Programs
NI system assurance programs are designed to make it even easier for you to own an NI system. These programs include configuration and deployment services for your NI PXI,
CompactRIO, or Compact FieldPoint system. The NI Basic System Assurance Program provides a simple integration test and ensures that your system is delivered completely
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assembled in one box. When you configure your system with the NI Standard System Assurance Program, you can select from available NI system driver sets and application
development environments to create customized, reorderable software configurations. Your system arrives fully assembled and tested in one box with your software preinstalled.
When you order your system with the standard program, you also receive system-specific documentation including a bill of materials, an integration test report, a recommended
maintenance plan, and frequently asked question documents. Finally, the standard program reduces the total cost of owning an NI system by providing three years of warranty
coverage and calibration service. Use the online product advisors at ni.com/advisor to find a system assurance program to meet your needs.
Calibration
NI measurement hardware is calibrated to ensure measurement accuracy and verify that the device meets its published specifications. To ensure the ongoing accuracy of your
measurement hardware, NI offers basic or detailed recalibration service that provides ongoing ISO 9001 audit compliance and confidence in your measurements. To learn more
about NI calibration services or to locate a qualified service center near you, contact your local sales office or visit ni.com/calibration.
Technical Support
Get answers to your technical questions using the following National Instruments resources.
Support - Visit ni.com/support to access the NI KnowledgeBase, example programs, and tutorials or to contact our applications engineers who are located in NI sales
offices around the world and speak the local language.
Discussion Forums - Visit forums.ni.com for a diverse set of discussion boards on topics you care about.
Online Community - Visit community.ni.com to find, contribute, or collaborate on customer-contributed technical content with users like you.
Repair
While you may never need your hardware repaired, NI understands that unexpected events may lead to necessary repairs. NI offers repair services performed by highly trained
technicians who quickly return your device with the guarantee that it will perform to factory specifications. For more information, visit ni.com/repair.
Training and Certifications
The NI training and certification program delivers the fastest, most certain route to increased proficiency and productivity using NI software and hardware. Training builds the skills
to more efficiently develop robust, maintainable applications, while certification validates your knowledge and ability.
Classroom training in cities worldwide - the most comprehensive hands-on training taught by engineers.
On-site training at your facility - an excellent option to train multiple employees at the same time.
Online instructor-led training - lower-cost, remote training if classroom or on-site courses are not possible.
Course kits - lowest-cost, self-paced training that you can use as reference guides.
Training memberships and training credits - to buy now and schedule training later.
Visit ni.com/training for more information.
Extended Warranty
NI offers options for extending the standard product warranty to meet the life-cycle requirements of your project. In addition, because NI understands that your requirements may
change, the extended warranty is flexible in length and easily renewed. For more information, visit ni.com/warranty.
OEM
NI offers design-in consulting and product integration assistance if you need NI products for OEM applications. For information about special pricing and services for OEM
customers, visit ni.com/oem.
Alliance
Our Professional Services Team is comprised of NI applications engineers, NI Consulting Services, and a worldwide National Instruments Alliance Partner program of more than
700 independent consultants and integrators. Services range from start-up assistance to turnkey system integration. Visit ni.com/alliance.
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Detailed Specifications
The following specifications are typical for the range – 40 to 70 °C unless otherwise noted.
Warm-up time 1
15 min
Input Characteristics
Number of channels
16 thermocouple channels, 1 internal autozero channel, 1 internal cold-junction
compensation channel
ADC resolution
24 bits
Type of ADC
Delta-Sigma
Sampling mode
Scanned
Voltage measurement range
±78.125 mV
Temperature measurement ranges
Works over temperature ranges defined by NIST (J, K, T, E, N, B, R, S
thermocouple types)
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Timing modes
Timing Mode
Conversion Time (Per Channel) Sample Rate 2 (All Channels 3 )
High-resolution 55 ms
1 S/s
High-speed
75 S/s
740 μs
Common-mode voltage range
Channel-to-COM
±1.2 V min
COM-to-earth ground
±250 V
Common-mode rejection ratio
High-resolution mode (at DC and 50–60 Hz)
Channel-to-COM
100 dB
COM-to-earth ground
>170 dB
High-speed mode (at 0–60 Hz)
Channel-to-COM
70 dB
COM-to-earth ground
>150 dB
Input bandwidth
High-resolution mode
14.4 Hz
High-speed mode
78 Hz
High-resolution noise rejection (at 50 and 60 Hz)
60 dB
Overvoltage protection
±30 V between any two inputs
Differential input impedance
78 MΩ
Input current
50 nA
Input noise
High-resolution mode
200 nVrms
High-speed mode
7 μVrms
Gain error
High-resolution mode
0.03% typ at 25 °C, 0.07% typ at – 40 to 70 °C, 0.15% max at – 40 to 70 °C
High-speed mode
0.04% typ at 25 °C, 0.08% typ at – 40 to 70 °C, 0.16% max at – 40 to 70 °C
Offset error
High-resolution mode
4 μV typ, 6 μV max
High-speed mode
14 μV typ, 17 μV max
Offset error from source impedance
Add 0.05 μV per Ω, when source impedance >50 Ω
Cold-junction compensation accuracy
0 to 70 °C
0.8 °C typ, 1.7 °C max
– 40 to 70 °C
1.1 °C typ, 2.1 °C max
852,407 hours at 25 °C; Bellcore Issue 2, Method 1, Case 3, Limited Part
Stress Method
MTBF
Note Contact NI for Bellcore MTBF specifications at other temperatures or for MIL-HDBK-217F specifications.
Temperature Measurement Accuracy
Measurement sensitivity 4
High-resolution mode
Types J, K, T, E, N
<0.02 °C
Types B, R, S
<0.15 °C
High-speed mode
Types J, K, T, E
<0.25 °C
Type N
<0.35 °C
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Type B
<1.2 °C
Types R, S
<2.8 °C
Figures 6, 7, 8, 9, and 10 show the errors for each thermocouple type when connected to the NI 9213 with the autozero channel on. The figures display the maximum errors over
a full temperature range and typical errors at room temperature. The figures account for gain errors, offset errors, differential and integral nonlinearity, quantization errors, noise
errors, 50 Ω lead wire resistance, and cold-junction compensation errors. The figures do not account for the accuracy of the thermocouple itself.
Thermocouple Types J and N Errors
Thermocouple Type K Errors
Thermocouple Types T and E Errors
Thermocouple Type B Errors
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Thermocouple Types R and S Errors
Power Requirements
Power consumption from chassis
Active mode
490 mW max
Sleep mode
25 μW max
Thermal dissipation (at 70 °C)
Active mode
840 mW max
Sleep mode
710 mW max
Physical Characteristics
Note For two-dimensional drawings and three-dimensional models of the C Series module and connectors, visit ni.com/dimensions and search by module number.
Spring-terminal wiring
18 to 28 AWG copper conductor wire with 7 mm (0.28 in.) of insulation stripped
from the end
Weight
159 g (5.61 oz)
If you need to clean the module, wipe it with a dry towel.
Safety
Safety Voltages
Connect only voltages that are within the following limits.
Between any two terminals
±30 V max
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 (MAINS 5 ). This category refers to local-level electrical
distribution, such as that provided by a standard wall outlet (for example, 115 AC voltage for U.S. or 230 AC voltage for Europe). Examples of Measurement Category II are
measurements performed on household appliances, portable tools, and similar hardware.
Caution Do not connect the NI 9213 to signals or use for measurements within Measurement Categories III or IV.
Safety Standards
This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use:
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IEC 61010-1, EN 61010-1
UL 61010-1, CSA 61010-1
Note For UL and other safety certifications, refer to the product label or the Online Product Certification section.
Hazardous Locations
U.S. (UL)
Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, AEx nA IIC T4
Canada (C-UL)
Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, Ex nA IIC T4
Europe (DEMKO)
Ex nA IIC T4
Environmental
National Instruments C Series modules are intended for indoor use only but may be used outdoors if installed in a suitable enclosure. Refer to the manual for the chassis you are
using for more information about meeting these specifications.
Operating temperature (IEC 60068-2-1, IEC 60068-2-2)
– 40 to 70 °C
Storage temperature (IEC 60068-2-1, IEC 60068-2-2)
– 40 to 85 °C
Ingress protection
IP 40
Operating humidity (IEC 60068-2-56)
10 to 90% RH, noncondensing
Storage humidity (IEC 60068-2-56)
5 to 95% RH, noncondensing
Maximum altitude
2,000 m
Pollution degree
2
Shock and Vibration
To meet these specifications, you must panel mount the system and use the NI 9940 backshell kit to protect the connections.
Operating vibration
Random (IEC 60068-2-64)
5 grms, 10 to 500 Hz
Sinusoidal (IEC 60068-2-6)
5 g, 10 to 500 Hz
Operating shock (IEC 60068-2-27)
30 g, 11 ms half sine, 50 g, 3 ms half sine, 18 shocks at 6 orientations
Electromagnetic Compatibility
This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement, control, and laboratory use:
EN 61326 (IEC 61326): Class A emissions; Industrial immunity
EN 55011 (CISPR 11): Group 1, Class A emissions
AS/NZS CISPR 11: Group 1, Class A emissions
FCC 47 CFR Part 15B: Class A emissions
ICES-001: Class A emissions
Note For the standards applied to assess the EMC of this product, refer to the Online Product Certification section.
Note For EMC compliance, operate this device with double-shielded cables.
CE Compliance
This product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows:
2006/95/EC; Low-Voltage Directive (safety)
2004/108/EC; Electromagnetic Compatibility Directive (EMC)
Note For the standards applied to assess the EMC of this product, refer to the Online Product Certification section.
Online Product Certification
Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit
ni.com/certification, search by module number or product line, and click the appropriate link in the Certification column.
Environmental Management
National Instruments is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous
substances from our products is beneficial not only to the environment but also to NI customers.
For additional environmental information, refer to the NI and the Environment Web page at ni.com/environment. This page contains the environmental regulations and directives
with which NI complies, as well as other environmental information not included in this document.
Waste Electrical and Electronic Equipment (WEEE)
EU Customers At the end of their life cycle, all products must be sent to a WEEE recycling center. For more information about WEEE recycling centers and National
Instruments WEEE initiatives, visit ni.com/environment/weee.htm.
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Calibration
You can obtain the calibration certificate for this device at ni.com/calibration.
Calibration interval
1 year
Safety Information
The following section contains important safety information that you must follow when installing and using the hardware.
Do not operate the hardware in a manner not specified in this document and in the user documentation. Misuse of the hardware can result in a hazard. You can compromise the
safety protection if the hardware is damaged in any way. If the hardware is damaged, return it to National Instruments for repair.
Clean the hardware with a soft, nonmetallic brush. Make sure that the hardware is completely dry and free from contaminants before returning it to service.
Do not substitute parts or modify the hardware except as described in this document. Use the hardware only with the chassis, modules, accessories, and cables specified in the
installation instructions or specifications. You must have all covers and filler panels installed during operation of the hardware.
Do not operate the hardware in an explosive atmosphere or where there may be flammable gases or fumes unless the hardware is UL (U.S.) or Ex (EU) Certified and marked for
hazardous locations. The hardware must be in a suitably rated IP 54 minimum enclosure for hazardous locations. Refer to the hardware’s user documentation for more
information.
You must insulate signal connections for the maximum voltage for which the hardware is rated. Do not exceed the maximum ratings for the hardware. Do not install wiring while
the hardware is live with electrical signals. Do not remove or add connector blocks when power is connected to the system. Avoid contact between your body and the connector
block signal when hot swapping hardware. Remove power from signal lines before connecting them to or disconnecting them from the hardware.
Operate the hardware only at or below Pollution Degree 2. Pollution is foreign matter in a solid, liquid, or gaseous state that can reduce dielectric strength or surface resistivity.
The following is a description of pollution degrees:
Pollution Degree 1 means no pollution or only dry, nonconductive pollution occurs. The pollution has no influence. Typical level for sealed components or coated PCBs.
Pollution Degree 2 means that only nonconductive pollution occurs in most cases. Occasionally, however, a temporary conductivity caused by condensation must be expected.
Typical level for most products.
Pollution Degree 3 means that conductive pollution occurs, or dry, nonconductive pollution occurs that becomes conductive due to condensation.
Operate the hardware at or below the measurement category 6 marked on the hardware label. Measurement circuits are subjected to working voltages 7 and transient stresses
(overvoltage) from the circuit to which they are connected during measurement or test. Measurement categories establish standard impulse withstand voltage levels that
commonly occur in electrical distribution systems. The following is a description of measurement categories:
Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS 8 voltage. This category is
for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special hardware, limited-energy parts of
hardware, circuits powered by regulated low-voltage sources, and electronics.
Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system (MAINS 9 ). This category refers to local-level
electrical distribution, such as that provided by a standard wall outlet (for example, 115 AC voltage for U.S. or 230 AC voltage for Europe). Examples of Measurement Category
II are measurements performed on household appliances, portable tools, and similar hardware.
Measurement Category III is for measurements performed in the building installation at the distribution level. This category refers to measurements on hard-wired hardware
such as hardware in fixed installations, distribution boards, and circuit breakers. Other examples are wiring, including cables, bus bars, junction boxes, switches, socket outlets
in the fixed installation, and stationary motors with permanent connections to fixed installations.
Measurement Category IV is for measurements performed at the primary electrical supply installation typically outside buildings. Examples include electricity meters and
measurements on primary overcurrent protection devices and on ripple control units.
To obtain the safety certification(s) for this product, visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column.
1
The warm-up time assumes the module is not in sleep mode, is facing forward or upward, and is in a constant ambient temperature. National Instruments recommends allowing
the full warm-up time.
2
If you are using fewer than all channels, the sample rate might be faster. The maximum sample rate = 1/( Conversion Time × Number of Channels), or 100 S/s, whichever is
smaller. Sampling faster than the maximum sample rate may result in the degradation of accuracy.
3
Including the autozero and cold-junction channels.
4
Measurement sensitivity represents the smallest change in temperature that a sensor can detect. It is a function of noise. The values assume the full measurement range of the
standard thermocouple sensor according to ASTM E230-87.
5
MAINS is defined as a hazardous live electrical supply system that powers hardware. Suitably rated measuring circuits may be connected to the MAINS for measuring purposes.
6
Measurement categories, also referred to as overvoltage or installation categories, are defined in electrical safety standard IEC 61010-1 and IEC 60664-1.
7
Working voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation.
8
MAINS is defined as a hazardous live electrical supply system that powers hardware. Suitably rated measuring circuits may be connected to the MAINS for measuring purposes.
9
MAINS is defined as a hazardous live electrical supply system that powers hardware. Suitably rated measuring circuits may be connected to the MAINS for measuring purposes.
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