NI-9213 Thermocouple Module Chassis


Characteristics of NI 9213
Spring terminal connectivity
50 Hz/60 Hz noise rejection
• Up to 0.02 ° C measurement sensitivity
250 Vrms, CAT II, channel to art isolation

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NI-9213 Thermocouple Module Chassis


CompactRIO combines an open-embedded architecture with small size, extreme ruggedness, and C Series modules in a platform powered by the NI LabVIEW reconfigurable I/O (RIO) architecture. Each system contains an FPGA for custom timing, triggering, and processing with a wide array of available modular I/O to meet any embedded application requirement.

CompactDAQ is a portable, rugged data acquisition platform that integrates connectivity, data acquisition, and signal conditioning into modular I/O for directly interfacing to any sensor or signal. Using CompactDAQ with LabVIEW, you can easily customize how you acquire, analyze, visualize, and manage your measurement data.


LabVIEW Professional Development System for Windows

• Use advanced software tools for large project development

• Generate code automatically using DAQ Assistant and Instrument I/O Assistant

• Use advanced measurement analysis and digital signal processing

• Take advantage of open connectivity with DLLs, ActiveX, and .NET objects

• Build DLLs, executables, and MSI installers


• Design FPGA applications for NI RIO hardware

• Program with the same graphical environment used for desktop and real-time applications

• Execute control algorithms with loop rates up to 300 MHz

• Implement custom timing and triggering logic, digital protocols, and DSP algorithms

• Incorporate existing HDL code and third-party IP including Xilinx IP generator functions

• Purchase as part of the LabVIEW Embedded Control and Monitoring Suite

NI 9213 Circuitry

Each channel passes through a differential filter and then is multiplexed and sampled by a 24- bit analog-to-digital converter (ADC). The channels share a common ground, COM, that is isolated from other modules in the system.


Common-Mode Voltage

The NI 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 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.


Open Thermocouple Detection

Each channel 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.