Updating Steinhart-Hart Coefficients - Johnson Controls - LIT-12012523 - Temperature Data Acquisition (TDA) Module

Temperature Data Acquisition (TDA) Module Technical Bulletin

Johnson Controls
Product name
Temperature Data Acquisition (TDA) Module
Document type
Installation Instructions
Document number
Revision date

The TE-74 is preloaded with default coefficients to use with the Steinhart-Hart equation to convert the measured resistance to temperature. For optimal performance these values should be updated with the values that are typically provided with calibrated temperature probes. A, B and C values for each channel can be individually commanded to adjust the TE-74 input to the sensor connected to the input.