Additel 878 Reference Dry Well and Thermocouple Furnace Calibrators

The process calibrator option adds an external reference input, a two-channel readout for UUT’s, and a full complement of capabilities to help with everything from measuring temperature sensors, to calibrating thermocouples, self-calibrating the reference well, and configuring HART transmitters

The process calibrator on these units combines the many features found in a fully functional HART documenting process calibrator with the reference grade dry well. This includes the ability to measure a reference PRT, with virtually any connection type, and two devices under test channels which can measure mA, voltage, switch, RTD or thermocouple. In addition to these measurement functions, this calibrator has full documenting capability of creating tasks, saving as found and as left results, as well as communication with HART-smart transmitters. The process calibrator also has an on-board full HART communicator which allows users to read, configure and calibrate HART transmitters. The snapshot feature allows you to capture all information displayed on the screen with the push of a button. This allows for data logging of all channels on an auto step function. By utilizing the reference PRT, you can select to control the dry well set point using the internal sensor or the external reference PRT.

Traditionally, the internal control sensor has a wide accuracy which can largely be contributed to its long-term drift. We’ve built a self-calibration feature allowing you to run an automated calibration of the internal control sensor using your external reference. With literally a few selections the calibration will run automatically giving you a fresh, traceable calibration of the control sensor which will improve its accuracy as you will not have to account for its long-term drift when used as the reference.