We’ve developed a stronger platinum leg to our thermocouple wire by microalloying zirconium with the platinum to stabilise the grain boundaries, which prevents the formation of bamboo structures.
Containing the grains gives it outstanding strength; it lasts up to 400 times longer than standard thermocouple wire, offering a reliable temperature reading in harsh environments. We’ve proven this through accelerated lifetime testing, applying high loads at high temperatures to the wires. It also shows exceptional measurement accuracy, meeting IEC 60584-1:2013 class 1 tolerance. And with improved drift properties, it maintains this accuracy for longer. Independent trials at the National Physical Laboratory (NPL) have confirmed HTX wire has a better EMF output stability than conventional thermocouples, with reduced drift during thermal cycling tests.