What are the benefits of grounded, ungrounded, and exposed probe junctions?
GROUNDED JUNCTIONS are welded to the tip of the sheath with wires completely sealed from contaminants. They offer good response times and are ideal for measuring the temperature of static or flowing corrosive gases and liquids. UNGROUNDED JUNCTIONS are sealed, insulated from the protective sheath, and electrically isolated. They have longer response times than grounded or exposed junctions and are used for conductive solutions or where isolation of the measuring circuitry is required. EXPOSED JUNCTIONS have the fastest response times and are ideal for measuring rapid temperature changes. Clear coating on most models provides a humidity barrier for the thermocouple. Do not use exposed junctions with corrosive fluids or atmospheres.
