Thermocouple Data Acquisition Systems

Flexible, accurate thermocouple data acquisition systems suitable for the measurement of temperature in research, lab and industrial applications. Custom systems available.


These units can be expanded to measure as many as 700 thermocouples. A key feature of these systems is the flexibility to monitor other parameters in addition to temperature.  They can be configured with voltage/current inputs, digital I/O, and counters/frequency inputs making them suitable for many types of projects including equipment test stands, component testing, quality assurance, reliability testing, and R&D. For real-time monitoring, configuration and data retrieval, a variety of communications options are available including USB, Ethernet and WiFi.

An important factor to consider in selecting a thermocouple data acquisition system is the ability of the system to provide accurate measurements. Because thermocouples provide a very small, non-linear voltage output and this output is a relative measurement, it imposes some additional requirements on the system:

  • Low voltage measurement capability with microvolt accuracy
  • Accurate cold junction compensation at the point where the thermocouples are terminated at the system
  • Conversion tables using ITS polynomials
  • Measurement filters to reduce the effect of EMI and RFI noise in the environment

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