June 21, 2018 – Additel Corporation introduced their ADT875 Dry Well Calibrator series which consist of three temperature ranges from –40°C to 660°C. There are three ranges to choose from: low temperature –40C° to 155°C (ADT875-155), mid-temperature 33°C to 350°C (ADT875-350), and high temperature 33°C to 660°C (ADT875-660). Each unit has performance specifications related to the guidelines published in Euramet cg-13 specifying stability, radial and axial uniformity, loading, and hysteresis.
Each unit has a process calibrator option which combines many features found in a HART documenting process calibrator with the temperature dry well. This option includes the ability to measure a reference PRT and two device under test channels which can measure, mA, voltage, switch, RTD or thermocouple. In addition to these measurement functions, this calibrator has documenting capability of creating tasks, saving as found and as left results, and HART communication.