Direct Immersion Grounded Junction Thermocouple
Conax Technologies has developed and tested a direct immersion, 1/8″ diameter grounded junction thermocouple design for operating pressures to 40,000 PSIg. Units have been proof pressure tested to 60,000 PSIg at room temperature. This design uses an economical proprietary method of silver brazing a high pressure fitting directly to the thermocouple sheath. Testing concluded that the thermocouple’s calibration (Type J Thermocouple) was maintained after silver brazing and pressure testing.