Temperature Sensor Input Module
The EKE-Trainnet® Temperature Sensor Input (TSI) module provides measured temperature values to the train computer’s CPU.
It acquires the signals from the NTC temperature sensors (resistance measurement) and converts them into temperature values expressed in degrees Celsius.
Key Features
The EKE-Trainnet® TSI5226 has six measurement channels which can measure temperature from the NTC temperature sensors within the -25 to +125 °C range with over range indication. Each channel is isolated from each other, thus a fault in one channel will not affect the others. The temperature sensors can be connected using 2-wire, 3-wire or 4-wire schemes, providing flexibility.
The embedded processor also implements diagnostic functions and reports to the train computer’s CPU module if it suspects that the input values cannot be trusted. The EKE-Trainnet® TSI detects the temperature sensor as well as cable faults and input channel faults.
The measurement resolution is 0.01 °C, with accuracy better than ±1 °C within the measurement range.
The module has its own 32-bit embedded processor that uses factory calibration values to convert measurement values to degrees Celsius with the best possible accuracy.
