PR332W Tungsten-rhenium Thermocouple Calibration Furnace is suitable for providing constant heat source for calibrating tungsten-rhenium thermocouple in the range of 400°C~1500°C. It has the advantages of good temperature field uniformity, fast temperature rise, temperature is monotonically stable, and good constant temperature effect, can not only be used independently, but also can be used as ancillary equipment for the Panrans ZRJ series intelligent thermal instrument calibration system.