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July 2025
USB-9211
USB-9211, 4-Channel, 12 S/s, 24-Bit Thermocouple Input Device
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments USB-9211 Thermocouple Input Device
The NI USB-9211 (Part Number: 778976-01) is a 24-Bit Thermocouple Input Device with 4 channels. This device offers a USB interface with integrated signal conditioning. By design, the NI USB 9211 is comprised of two separate parts: the USB-9161 Carrier and the NI-9211 module. However, the carrier and the module are provided in disengaged form. The user can easily insert the thermocouple input device into the carrier without using any tools. The USB-9211 device can also be mounted to a panel.
Every channel has an impedance between the TC- and COM terminals, as well as between the TC+ and COM terminals. During operation and data acquisition, every channel is filtered before being sampled through a 24-bit Delta-sigma ADC. A current source is provided between the TC+ and TC- terminals. When an open thermocouple is linked to a channel, a full-scale voltage is forced through TC+ and TC- terminals by the current source. For most applications, the offset and gain errors resulting from thermocouples source impedance can be deemed as negligible while operating with thermocouples connected.
For measuring offset error, the NI USB-9211 comes with an internal autozero channel. Users can use the autozero channel to the read the offset error if the device is to be operated in less than 15 °C and more than 35 °C ambient temperature. The autozero channel always remains enabled. Additionally, one internal cold-junction compensation channel is available. The National Instruments USB-9211 is compatible with a broad range of thermocouples such as; S, T, N, J, K, B, etc.
USB-9211 Obsolete Status has been declared by National Instruments, but the device will still be available for purchase and repairs by Apex Waves.
| Model | USB-9211 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 778976-01 |
| Type | Thermocouple Input Device |
| Channels | 4 thermocouple |
| Resolution | 24 bits |
| Sample Rate | 12 S/s |
| Dimensions | 5.51 in. × 3.37 in. × 0.99 in. |
| Weight | 12.3 oz. |
| USB-9211 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for USB-9211:
National Instruments USB-9211 Frequently Asked Questions
Question: What is the input range of the USB-9211?
Answer: The input range of the USB-9211 is ±80 mV.
Question: Which driver software can be used with the NI USB-9211?
Answer: The NI USB-9211 can be used with NI-DAQmx Base driver software and data logger software.
Question: Which type of I/O connectors does the NI USB 9211 have?
Answer: The NI USB 9211 has screw terminal I/O connectors.
Question: Why can’t I use my USB 9211 with NI-DAQmx?
Answer: The USB 9211 is solely compatible with NI-DAQmx Base 2.2 and previous versions because of essential hardware limitations.
Driver Downloads for USB-9211
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