Description
The NI USB-9211A is identified by its part number 778976-01 and falls under the category of CompactDAQ Chassis. This model, USB-9211, is designed specifically for thermocouple input and is described as a 4-channel, 24-bit thermocouple input device with integrated hardware only. It offers a resolution of 24-Bit and utilizes a USB interface for connectivity.
The device boasts integrated signal conditioning, making it capable of handling various signal types efficiently. It comprises two main components: the USB-9161 Carrier and the NI-9211 module, both of which are essential for its operation. Designed to be panel mountable, it offers flexibility in installation.
Impedance considerations are taken into account between TC- and COM terminals, as well as between TC+ and COM terminals, ensuring reliable measurements. The 24-bit Delta-sigma ADC type underscores the device’s high-resolution data acquisition capabilities. Furthermore, a current source is available between TC+ and TC- terminals, enhancing its functionality.
An autozero channel is integrated internally for measuring offset error, ensuring accuracy in readings. Additionally, internal cold-junction compensation is available, making it suitable for a wide range of temperature measurements. The device is compatible with various thermocouples, including types S, T, N, J, K, B, and more, offering versatility in temperature sensing applications.
Despite being declared obsolete by National Instruments, the NI USB-9211A remains available for purchase and repairs through Apex Waves, ensuring continued support for users of this sophisticated device.
| Specification | Detail |
|---|---|
| Part Number | 778976-01 |
| Category | CompactDAQ Chassis |
| Model | USB-9211 |
| Description | NI USB-9211A 4-ch, 24 bit Thermocouple Input, Hardware only |
| Channels | 4 |
| Resolution | 24-Bit |
| Interface | USB |
| Signal Conditioning | Integrated |
| Components | USB-9161 Carrier and NI-9211 module |
| Mounting | Panel mountable |
| Impedance | Between TC- and COM terminals, and between TC+ and COM terminals |
| ADC Type | 24-bit Delta-sigma |
| Current Source | Between TC+ and TC- terminals |
| Autozero Channel | Internal, for measuring offset error |
| Cold-Junction Compensation | Internal channel available |
| Compatible Thermocouples | S, T, N, J, K, B, etc. |
| Obsolete Status | Declared by National Instruments, available for purchase and repairs by Apex Waves |
Question 1: What is the part number for the NI USB-9211A?
Answer 1: 778976-01
Question 2: How many channels does the USB-9211 offer?
Answer 2: 4 channels
Question 3: What resolution does the USB-9211 support?
Answer 3: 24-bit
Question 4: Does the USB-9211 have integrated signal conditioning?
Answer 4: Yes, it has integrated signal conditioning.
Question 5: Is the NI USB-9211A obsolete?
Answer 5: Yes, but it’s still supported by Apex Waves.


