The TT421 is a temperature transmitter for head mounting, compatible with the HART®
protocol. It works with several sensor types and represents an excellent cost/benefit solution.
• 0.02% accuracy;
• Input: a single input accepts signals from thermocouples, RTD’s, differential RTD’s, mV
signals from radiation pyrometers, load cells, Ohm signals from position indicators, etc;
• Measurement types: Single Sensor: 2, 3, or 4 wire; 2-wire double sensor: Differential,
Average; Maximum and Minimum;