... . 4. Samples available Fe-CuNi thermocouple (type J) is also named Fe- Constantan thermocouple. The positive ... other Constantan.The operating temperature range of type J thermocouple is -210~1200°C, but it ... atmosphere above 500°C. Fe-CuNi thermocouple (type J) is also named Fe- Constantan thermocouple. The ... (TN)200-600EChromelP(EP)/ Constantan(EN)200-1600TYPE J (Iron vs Constantan) is used in vacuum, ...