Additel ADT875 Calibration Instruments
  • Additel ADT875 Calibration Instruments
  • Additel ADT875 Calibration Instruments
  • Additel ADT875 Calibration Instruments
  • Additel ADT875 Calibration Instruments

Additel ADT875


Additel ADT875 Dry Well Calibrator



The Additel 875 Series Dry Well Calibrators combine excellent performance in stability, radial and axial uniformity, and loading with speed, ruggedness and portability. The Process Calibrator option adds the capabilities of a three-channel thermometer readout and a documenting process calibrator. Additel has also incorporated a unique option to select a temperature range within the range of the model selected, called the CYOR option, or "Choose Your Own Range" option. With the CYOR option, users pick the upper and lower temperature range needed and the dry well calibrates and optimizes its performance over the selected range. Each unit has a color touch screen display, dual-zone control, and much more.

Process Calibrator Option

Each model offers a Process Calibrator (PC) option. This process calibrator option combines the 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 full documenting capability of creating tasks, saving as found and as left results, and HART communication. The snap shot feature allows users to capture all information displayed on the screen with the push of a button. This optional add-on allows for data logging of all channels on an auto step function and a ramp function. By utilizing the reference PRT, users can select to control the dry well set point using the internal sensor or the external reference PRT.


Additel believes that using an external reference probe as standard is the best way to perform temperature calibrations. But this method is not always necessary or convenient, and depending on the application, using the internal control sensor is preferable. Traditionally, the internal control sensor has a wide accuracy which can largely be contributed to its long-term drift. Additel 875 has a built-in self-calibration feature allowing users to run an automated calibration of the internal control sensor using external references. With literally a few selections the calibration will run automatically for fresh, traceable calibration of the control sensor which will improve its accuracy. Users will no longer have to account for long term drift when used as the reference.

Product Details
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