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The AXN/TDC/401 is used to condition and digitize up to fifteen analog thermocouple channels, three 4-wire RTD (dedicated for PT100) channels and offers top-block built-in temperature sensor.
The AXN/TDC/401 performs linearization for the selected cold junction sensor and thermocouple and compensates the thermocouple channel accordingly. Any of the three PT50/PT100 channels or top-block built-in temperature sensor can be selected as cold junction compensation.
The module offers programmable pull-down resistors for thermocouples isolated from the module ground.
There are three independently configurable output streams per channel, allowing different sample rate, cut-off, and filter type to be selected for each output stream.
Features
- 15 grounded or isolated thermocouple input channels
- Three PT50/PT100 channels and one built-in top-block sensor for junction compensation
- Supports multiple thermocouple types with digital cold junction compensation and programmable thermocouple type per channel
- Accuracy (0.5°C typical for K-type in -50 to 150°C range, 1°C typical outside this range)
- 16-bit simultaneous sampling with three configurable output streams on each channel
- User-defined linearization and compensation for errors in the entire measurement chain
- Open thermocouple detection
Applications
- Thermocouple temperature measurements
AXN/TDC/401