National Instruments USB-9213 User manual

USER GUIDE AND SPECIFICATIONS
NI USB-9213
16-Channel Thermocouple Input Module
This user guide describes how to use the National Instruments USB-9213
and lists the device specifications.
Introduction
The NI USB-9213 consists of two components: an NI 9213 module and an
NI USB-9162 carrier, as shown in Figure 1.
Figure 1. NI USB-9213 Components
NI 9213
NI USB-9162
NI USB-9213
Hi-SPeed USB Carrier
NI USB-9162
Hi-Speed USB Carrier
NI USB-9162

NI USB-9213 User Guide and Specifications 2 ni.com
Dimensions
Figure 2 shows the NI USB-9213 device dimensions.
Figure 2. NI USB-9213 Device Dimensions in Millimeters (Inches)
Safety Guidelines
Operate the NI USB-9213 only as described in this user guide.
Hot Surface This icon denotes that the component may be hot. Touching this component
may result in bodily injury.
Safety Guidelines for Hazardous Voltages
If hazardous voltages are connected to the module, take the following
precautions. A hazardous voltage is a voltage greater than 42.4 Vpk or
60 VDC to earth ground.
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 Make sure that devices and circuits connected to the module are properly
insulated from human contact.
Hi-Speed USB Carrier
NI USB-9162
120.68 mm
(4.751 in.)
118.26 mm
(4.656 in.)
88.12 mm
(3.469 in.)
25.34 mm
(0.998 in.)

©National Instruments Corporation 3 NI USB-9213 User Guide and Specifications
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, shown in Figure 3, to
ensure that the terminals are not accessible.
Figure 3. NI 9940 Connector Backshell
Related Documentation
Each application software package and driver includes information about
writing applications for taking measurements and controlling measurement
devices. Check ni.com/manuals for the most recent hardware
documentation and specifications, and refer to Table 1 for a list of locations
for driver and application software documentation. The following
document location references assume you have NI-DAQmx 9.0 or later,
and where applicable, version 8.2.1 or later of the NI application software.

NI USB-9213 User Guide and Specifications 4 ni.com
Table 1. Related Documentation
Software Document/Description Location/Topic
NI-DAQmx for Windows The DAQ Getting Started
guides—describe how to
install the NI-DAQmx for
Windows software, your
NI-DAQmx supported DAQ
device, and how to confirm that
your device is operating
properly.
Start»All Programs»
National Instruments»
NI-DAQ
NI-DAQ Readme—lists which
devices are supported by this
version of NI-DAQmx.
Start»All Programs»
National Instruments»
NI-DAQ»NI-DAQ Readme
NI-DAQmx Help—contains
general information about
measurement concepts, key
NI-DAQmx concepts, and
common applications that
are applicable to all
programming environments.
Start»All Programs»
National Instruments»
NI-DAQ»NI-DAQmx Help
LabVIEW Getting Started with
LabVIEW—describes the
LabVIEW graphical
programming environment and
the basic LabVIEW features
you use to build data
acquisition and instrument
control application.
Start»All Programs»
National Instruments»
LabVIEW»LabVIEW
Manuals or navigate to the
labview\manuals directory
and open
LV_Getting_Started.pdf
LabVIEW Help—provides
information about LabVIEW
programming concepts,
step-by-step instructions for
using LabVIEW, and reference
information about LabVIEW
VIs, functions, palettes,
menus, and tools.
Help»Search the LabVIEW
Help

©National Instruments Corporation 5 NI USB-9213 User Guide and Specifications
LabVIEW Help Topics Specific to NI-DAQmx
Location Description
From the Contents tab,
Getting Started with
LabVIEW»Getting Started
with DAQ
Includes overview information and a tutorial to learn how to take
an NI-DAQmx measurement in LabVIEW using the DAQ
Assistant.
From the Contents tab,
VI and Function Reference»
Measurement I/O VIs and
Functions»DAQmx-Data
Acquisition VIs and
Functions
Describes the LabVIEW NI-DAQmx VIs and properties.
From the Contents tab,
Taking Measurements
Contains the conceptual and how-to information you need to
acquire and analyze measurement data in LabVIEW, including
common measurements, measurement fundamentals,
NI-DAQmx key concepts, and device considerations.
LabWindows™/CVI™LabWindows/CVI Help Data
Acquisition book—contains
NI-DAQmx measurement
concepts and step-by-step
instructions about creating a
measurement task using the
DAQ Assistant.
Help»Contents, then select
Using LabWindows/CVI»
Data Acquisition»Taking an
NI-DAQmx Measurement in
LabWindows/CVI
LabWindows/CVI Help
NI-DAQmx Library
book—contains NI-DAQmx
API overviews and function
reference.
Library Reference»
NI-DAQmx Library
Measurement Studio/
Microsoft Visual Studio .NET
Microsoft Visual Studio .NET
Help/NI Measurement Studio
Help—contains NI-DAQmx
methods and properties.
Measurement Studio»
NI Measurement Studio
Help
Table 1. Related Documentation (Continued)
Software Document/Description Location/Topic

NI USB-9213 User Guide and Specifications 6 ni.com
ANSI C without
NI Application Software
NI-DAQmx Help—contains
API overviews and general
information about measure-
ment concepts.
Start»All Programs»
National Instruments»
NI-DAQ»NI-DAQmx Help
NI-DAQmx C Reference
Help—describes the
NI-DAQmx Library functions.
Start»All Programs»
National Instruments»
NI-DAQ»NI-DAQmx
C Reference Help
.NET Languages without
NI Application Software*
NI-DAQmx .NET
Help—contains conceptual
topics for using NI-DAQmx
with Visual C# and Visual
Basic .NET.
To view the NI-DAQmx .NET
documentation, go to Start»
All Programs»National
Instruments»NI-DAQ»
Text-Based Code Support»
NI-DAQmx .NET Help.
For function reference, refer to
the following topics:
NationalInstruments.DAQmx
Namespace and
NationalInstruments.DAQmx.
ComponentModel Namespace
For conceptual help, refer to
the following sections: Using
the Measurement Studio
NI-DAQmx.NET Library and
Developing with Measurement
Studio NI-DAQmx
To get to the same help topics
from within Visual Studio, go
to Help»Contents and select
Measurement Studio from the
Filtered By drop-down list.
Visual Studio .NET
Help—contains conceptual
topics for using NI-DAQmx
with Visual C# and Visual
Basic .NET.
Help»Contents. Select
Measurement Studio from
the Filtered By drop-down
list and follow the location
instructions for the
NI-DAQmx .NET Help.
*With the Microsoft .NET Framework version 1.1 or later, you can use NI-DAQmx to create applications using Visual C#
and Visual Basic .NET without Measurement Studio. You need Microsoft Visual Studio .NET 2003 or Microsoft Visual
Studio 2005 for the API documentation to be installed.
Table 1. Related Documentation (Continued)
Software Document/Description Location/Topic

©National Instruments Corporation 7 NI USB-9213 User Guide and Specifications
Training Courses
If you need more help getting started developing an application with
NI products, NI offers training courses. To enroll in a course or obtain
a detailed course outline, refer to ni.com/training.
Technical Support on the Web
For additional support, refer to ni.com/support or zone.ni.com.
Installing the Software
Software support for the NI USB-9213 for Windows Vista/XP is provided
by NI-DAQmx. The DAQ Getting Started guides, which you can download
at ni.com/manuals, offer NI-DAQmx users step-by-step instructions for
installing software and hardware, configuring channels and tasks, and
getting started developing an application.
Installing Other Software
If you are using other software, refer to the installation instructions that
accompany your software.
Example Programs
The NI-DAQmx media contains example programs that you can use to get
started programming with the NI USB-9213. Refer to the NI-DAQmx for
USB Devices Getting Started Guide that shipped with your device, and
is also accessible from Start»All Programs»National Instruments»
NI-DAQ, for more information.
Installing the NI USB-9213 Device
Before installing the device, you must install the software you plan to use
with the device. Refer to the Installing the Software section of this guide
and the documentation included with the software for more information.

NI USB-9213 User Guide and Specifications 8 ni.com
Mounting the NI USB-9213 to a Panel
Threaded inserts are located in the NI USB-9162 for mounting it to a panel.
Mount the NI USB-9162 before inserting the NI 9213. Refer to Figure 4 for
mounting dimensions.
Figure 4. Module Mounting Dimensions In Millimeters (Inches)
Installing the NI 9213 Device into the NI USB-9162 Carrier
The NI 9213 module and NI USB-9162 carrier are packaged separately.
Refer to Figure 5, while completing the following assembly steps:
1. Make sure that no signals are connected to the NI 9213 module and the
USB cable is not attached to the USB-9162.
2. Remove the protective cover from the 15-pin D-SUB connector.
3. Align the I/O module with the carrier, as shown in Figure 5.
Figure 5. Module Installation
72.2 mm
(2.84 in.)
85.7 mm
(3.37 in.)
76.1 mm
(3.00 in.)
Threaded Insert
M3 x 0.5
8.5 mm (0.34 in.) Max Depth

©National Instruments Corporation 9 NI USB-9213 User Guide and Specifications
4. Squeeze the latches and insert the NI 9213 module into the
NI USB-9162 carrier.
5. Press firmly on the connector side of the NI 9213 module until the
latches lock the module into place, as shown in Figure 6.
Figure 6. Locking Module into Place
Connecting the NI USB-9213 to a Computer
Plug one end of the USB cable into the NI USB-9213 and the other end into
an available USB port on the computer. Refer to the NI-DAQmx for USB
Devices Getting Started Guide that shipped with your device, and is also
accessible from Start»All Programs»National Instruments»NI-DAQ,
for more information.
LED Indicator
The NI USB-9213 device has a green LED next to the USB connector. The
LED indicator indicates device status, as listed in Table 2. When the device
is connected to a USB port, the LED blinks steadily to indicate that the
device is initialized and is receiving power from the connection.
If the LED is not blinking, it may mean that the device is not initialized or the
computer is in standby mode. In order for the device to be recognized, the
device must be connected to a computer that has NI-DAQmx installed on it.
If your device is not blinking, make sure your computer has the latest version
of NI-DAQmx installed on it, and the computer is not in standby mode.
Table 2. LED State/Device Status
LED State Device Status
Not lit Device not connected or in suspend.
On, not blinking Device connected, but no module installed.
Single-blink Operating normally.
Double-blink Operating normally.
Quadruple-blink Device error. Refer to ni.com/support.

NI USB-9213 User Guide and Specifications 10 ni.com
Wiring the NI USB-9213 Device
The NI USB-9213 has a 36-terminal detachable spring-terminal connector
that provides connections for 16 thermocouple channels.
Caution The NI 9940 high voltage screw terminal backshell, shown in Figure 3, must be
installed when using hazardous voltages (>42.4 Vpk, 60 VDC).
Figure 7. NI USB-9213 Terminal Assignments
You can connect thermocouple input signals to the NI USB-9213. Connect
the positive lead of the thermocouple to the TC+ terminal and the negative
lead of the thermocouple to the TC– terminal. If you are unsure which of
the thermocouple leads is positive and which is negative, check the
thermocouple documentation or the thermocouple wire spool. The
NI USB-9213 also has two common terminals, COM, that are internally
connected to the isolated ground reference of the module.
EMC Compliance
To ensure proper performance in the specified EMC environments, any
connected cable must be provided with an overall shield that is connected
to earth ground using an equipment grounding conductor of the shortest
possible length. Ensure that any wires within the cable that extend beyond
the shield are as short as possible so that the shield covers as much of the
cable as possible. For the equipment grounding conductor, use AWG 16 or
NC
TC0+
TC1+
TC2+
TC3+
TC4+
TC5+
TC6+
TC7+
TC8+
TC9+
TC10+
TC11+
TC12+
TC13+
TC14+
TC15+
COM
NC
TC0–
TC1–
TC2–
TC3–
TC4–
TC5–
TC6–
TC7–
TC8–
TC9–
TC10–
TC11–
TC12–
TC13–
TC14–
TC15–
COM
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

©National Instruments Corporation 11 NI USB-9213 User Guide and Specifications
larger, solid or stranded copper wire with a maximum length of 1.5 m (5 ft).
One end of the equipment grounding conductor must be soldered to the
overall cable shield. The other end of the equipment grounding conductor
must be connected to one of the following:
• The grounding electrode system of the facility where the device is
used. For more information about facility earth ground connections,
refer to the Earth Grounding for Test and Measurement Devices
KnowledgeBase document by going to ni.com/info and entering the
info code earthground.
• The chassis of the USB host, provided that the host is equipped with a
safety ground conductor and a connection can be made to the host’s
conductive, metal housing.
Caution Local electrical codes typically specify requirements for connecting equipment to
the grounding electrode system of a facility. Ensure that your installation complies with all
applicable safety requirements. When in doubt, contact a licensed electrician to perform
the installation.
For applications where a thermocouple wire shield does not need to be
connected to the COM terminal, a shielded, twisted pair thermocouple
cable should be used. The overall shield of the shielded, twisted pair
thermocouple cable must be connected to earth ground with the shortest
possible connection.
For applications where a thermocouple wire shield does need to be
connected to the COM terminal, a shielded, twisted pair thermocouple
cable with overbraiding (outer shield) should be used. The inner shield
should be connected to the COM terminal. The outer, overbraid shield
should be connected to earth ground with the shortest possible connection.
Figure 8 shows a typical wiring configuration with the inner shield
connected to COM and the outer shield connected to earth ground.
Note The inner shield is not necessary for EMC compliance.
Figure 8. Connecting a Shielded Thermocouple Input Signal to the NI USB-9213
Thermocouple
TC–
COM
TC+
Inner Shield
NI 9213
Outer Shield
USB-9162

NI USB-9213 User Guide and Specifications 12 ni.com
Connecting Wires to the NI USB-9213 Connector
Use a flathead screwdriver with a blade smaller than
2.3 ×1.0 mm (0.09 ×0.04 in.) to connect wires to the detachable
spring-terminal connector. Insert the screwdriver into a spring clamp
activation slot and press a wire into the corresponding connector terminal,
then remove the screwdriver to clamp the wire into the terminal. Refer to
the Specifications section for more information about spring-terminal
wiring. Refer to Figure 9 for an illustration of connecting wires to the
NI USB-9213.
Figure 9. Connecting Wires to the NI USB-9213 Terminals
Wiring for High-Vibration Applications
If an application is subject to high vibration, National Instruments
recommends that you use the NI 9940 backshell kit to protect the
connections. Refer to Figure 3 for an illustration of the NI 9940 connector
backshell.
NI USB-9213 Circuitry
Each channel of the NI USB-9213 passes through a differential filter and
then is multiplexed and sampled by a 24-bit analog-to-digital converter
(ADC). Each channel also has an open thermocouple detection (OTD)
circuit, which consists of a current source between the TC+ and TC–
terminals. If an open thermocouple is connected to the channel, the current
source forces a full-scale voltage across the terminals. Refer to Figure 10
for an illustration of the input circuitry for one channel of the
NI USB-9213.

©National Instruments Corporation 13 NI USB-9213 User Guide and Specifications
The NI USB-9213 multiplexes 16 thermocouple input channels, one
cold-junction compensation (CJC) channel, and one autozero channel to a
single ADC. Each channel has a resistor that produces an input impedance
between the TC+ and COM terminals and between the TC– and COM
terminals. The gain and offset errors resulting from the source impedance
of connected thermocouples are negligible for most applications.
Thermocouples with a higher lead resistance can introduce more
significant errors. Refer to the Specifications section for more information
about errors resulting from source impedance.
Figure 10. Input Circuitry for One Channel of the NI USB-9213
The channels share a common ground, COM, that is isolated from other
modules in the system. The NI USB-9213 common-mode range is the
maximum voltage between any channel and COM. If COM is not
connected, then the common-mode voltage range is the maximum voltage
between any two channels. The NI USB-9213 measures the common-mode
voltage level of each channel and returns a warning in the software if the
signal is outside the common-mode voltage range. Refer to the
Specifications section for more information about the common-mode
voltage range.
The NI USB-9213 supports high-resolution and high-speed timing modes.
High-resolution timing mode optimizes accuracy and noise and rejects
power line frequencies. High-speed timing mode optimizes sample rate and
signal bandwidth. Refer to the Specifications section for more information
about the high-speed and high-resolution timing modes. Refer to the
software help for information about setting the timing mode, or conversion
time, in software. Visit ni.com/info and enter cseriesdoc for
information about C Series documentation.
TC+
TC–
COM
USB-9213
Input
Impedance
Open
Thermocouple
Detection
Current
Filtered
Differential
Amplifier
and
Multiplexer
Isolated
ADC
39 MΩ
39 MΩ

NI USB-9213 User Guide and Specifications 14 ni.com
Temperature Measurement Accuracy Considerations
Temperature measurement errors depend partly on the thermocouple type,
the accuracy of the thermocouple, the temperature being measured, and the
cold-junction temperature. Refer to the Temperature Measurement
Accuracy Considerations section of the Specifications for the errors for
each thermocouple type when connected to the NI USB-9213. The errors
do not account for the accuracy of the thermocouple itself.
For the best accuracy results, keep temperature gradients across
NI USB-9213 terminals to a minimum and enable the autozero channel.
Refer to the Minimizing Thermal Gradients and Using the Autozero
Channel sections for more information.
Cold-Junction Temperature Measurement Accuracy
Heat dissipated by adjacent modules or other nearby heat sources can cause
errors in thermocouple measurements by heating up the NI USB-9213
terminals to a different temperature than the cold-junction compensation
sensor. The thermal gradient across the terminals can cause the terminals
of different channels to be at different temperatures, in which case the
resulting measurement creates errors not only in absolute accuracy but also
in the relative accuracy between channels. Refer to the Specifications
section for the cold-junction compensation accuracy specifications. If the
NI USB-9213 module is lying flat or facing upward, the thermocouple
accuracy specifications include the errors caused by the thermal gradient
across the module terminals. Refer to the Temperature Measurement
Accuracy section in the Specifications for the thermocouple accuracy
specifications.
Minimizing Thermal Gradients
Thermal gradients can be caused by changes in the ambient air temperature
near the front connector or by the thermocouple wire if it conducts heat or
cold directly to the terminal junctions. For the best accuracy results, follow
these guidelines for minimizing thermal gradients:
• Use the NI 9940 connector backshell shown in Figure 3.
• 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.
• If you connect any extension wires to thermocouple wires, use wires
made of the same conductive material as the thermocouple wires.
• Minimize adjacent heat sources and air flow across the terminals.

©National Instruments Corporation 15 NI USB-9213 User Guide and Specifications
• Keep the ambient temperature as stable as possible.
• Make sure the module is lying flat or facing upward. Keep the module
in a stable and consistent orientation.
• Allow the thermal gradients to settle after 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. Refer to the Specifications section for more
information about the warm-up time.
Using the Autozero Channel
The NI USB-9213 has an internal autozero channel to compensate for the
offset error. The NI USB-9213 specifications all assume the autozero channel
is on for every sample, however, you can choose not to use the autozero
channel in software. When the autozero channel is on, the NI USB-9213
measures the autozero channel and subtracts that measurement from the
measurement of each thermocouple channel. Refer to the software help for
information about using the autozero channel. Visit ni.com/info and enter
cseriesdoc for information about C Series documentation.
Specifications
The following specifications are typical for the range 0 to 60 °C
unless otherwise noted.
Warm-up time1....................................... 15 minutes
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
1 The warm-up time assumes the module is lying flat or facing upward and is in a constant ambient temperature.
National Instruments recommends allowing the full warm-up time.

NI USB-9213 User Guide and Specifications 16 ni.com
Temperature measurement ranges ..........Works over temperature ranges
defined by NIST
(J, K, T, E, N, B, R, S
thermocouple types)
Timing modes
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
Timing Mode
Conversion Time
(Per Channel)
Sample Rate*
(All Channels†)
High-resolution 55 ms 1 S/s
High-speed 740 μs75 S/s
* 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.
† Including the autozero and cold-junction channels.

©National Instruments Corporation 17 NI USB-9213 User Guide and Specifications
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 0 to 60 °C,
0.15% max at 0 to 60 °C
High-speed mode ............................ 0.04% typ at 25 °C,
0.08% typ at 0 to 60 °C,
0.16% max at 0 to 60 °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 W
Cold-junction compensation accuracy
0 to 60 °C ........................................ 0.8 °C typ, 1.7 °C max
Temperature Measurement Accuracy
Measurement sensitivity1
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
Type B ..................................... <1.2 °C
Types R, S................................ <2.8 °C
1 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.

NI USB-9213 User Guide and Specifications 18 ni.com
Figures 11, 12, 13, 14, and 15 show the errors for each thermocouple type
when connected to the NI USB-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.
Figure 11. Thermocouple Types J and N Errors
Figure 12. Thermocouple Type K Errors
Measured Temperature (˚C)
Measurement Error (˚C)
Max (High speed), 0 to 60 ˚C
Max (High res), 0 to 60 ˚C
Typ (High speed), room temp
Typ (High res), room temp
0
1
3
4
5
2
–200 50 300 550 800 1050 1300
Max (High speed), 0 to 60 ˚C
Max (High res), 0 to 60 ˚C
Typ (High speed), room temp
Typ (High res), room temp
Measured Temperature (˚C)
Measurement Error (˚C)
0
1
4
5
3
2
–200 0200 400 600 800 1000 1200 1400

©National Instruments Corporation 19 NI USB-9213 User Guide and Specifications
Figure 13. Thermocouple Types T and E Errors
Figure 14. Thermocouple Type B Errors
Max (High speed), 0 to 60 ˚C
Max (High res), 0 to 60 ˚C
Typ (High speed), room temp
Typ (High res), room temp
Measured Temperature (˚C)
Measurement Error (˚C)
0
1
3
4
2
–200 0200 400 600 800 1000
Measured Temperature (˚C)
Measurement Error (˚C)
Max (High speed), 0 to 60 ˚C
Max (High res), 0 to 60 ˚C
Typ (High speed), room temp
Typ (High res), room temp
0
2
6
4
200 400 600 800 1000 1200 1400 1600 1800

NI USB-9213 User Guide and Specifications 20 ni.com
Figure 15. Thermocouple Types R and S Errors
Power Requirements
Power consumption from USB...............370 mW max
Suspend mode..................................2.5 mA max
Bus Interface
USB specification ...................................USB 2.0 Hi-Speed
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 ....................................................Approx. 260 g (9.2 oz)
Safety Standards
This product meets the requirements of the following standards of safety
for electrical equipment for measurement, control, and laboratory use:
• IEC 61010-1, EN 61010-1
• UL 61010-1, CSA 61010-1
Measured Temperature (˚C)
Measurement Error (˚C)
Max (High speed), 0 to 60 ˚C
Max (High res), 0 to 60 ˚C
Typ (High speed), room temp
Typ (High res), room temp
0
2
6
4
–200 0200 400 600 800 1000 1200 1400 1600 1800