Consider an extruder of a 3D printer with temperature control provided by a K-type thermocouple transducer with Seebeck coefficient . At the cold junction it is used an analog integrated-circuit temperature sensor with lower temperature range, but suitable for measuring the thermal block temperature. It provides cold-junction compensation by means of a proportional-to-absolute temperature (PTAT) voltage , which drives the instrumentation amplifier (IA) reference pin (voltage/temperature characteristic shown in figure). The IA output voltage consists of .

What is the maximum temperature (in °C) that can be measured at the extruder given a maximum linear IA output voltage of ?