DescriptionDesigned for long-term use where economy is a factor, NHXH economy connectors are ideal for high-temperature applications. NHXH connectors are permanently dot-coded to conform to ANSI standards. For applications such as high vacuum furnaces where contamination would adversely affect the process, UHXH connectors are shipped with a removable coded dot. Temperature is limited only by the hardware. CHR -AL, Iron-Constantan and CHR -Constantan alloys can be used at temperatures up to 650°C (1200°F) and Copper-Constantan can be used accurately over its entire calibration range of 390°C (750°F). Noble metal calibrations are limited by the compensating alloys to ambient use of 260°C (500°F). No damage will be done by exposure to higher temperatures, but accuracies may exceed limits of error if a temperature gradient exists across the connector.