Additel makes automatic pressure calibrators and documenting process calibrators used across calibration labs and field instrumentation work. Their ADT760 series handheld pressure calibrator packs a built-in pump, precision sensor, and controller into a single unit under 4 lbs, with an interchangeable pressure module that swaps in seconds to cover ranges from 0.25 inH2O up to 300 psi. The ADT226 and ADT227 multifunction process calibrator series extend that same portability into a full documenting process calibrator that sources, simulates, and measures pressure, temperature, and electrical signals in one IP67 rated calibrator body. WestCalibration is an authorized Additel dealer, carrying genuine stock rather than grey-market or parallel-import units.

Why Choose Additel

ADT760 automatic pressure calibrator combines a built-in pump, sensor, and controller with an interchangeable pressure module, so one handheld pressure calibrator covers a wide span of ranges instead of several separate instruments
ADT226/227 multifunction process calibrator sources and measures pressure, temperature, and electrical signals together, with electrical accuracy down to 0.005% RDG + 0.005% FS on the ADT227
ATEX certified calibrator versions (ADT226Ex, ADT227Ex, ADT760 options) qualify as an intrinsically safe calibrator for hazardous, classified area work
Built-in barometer and dual channel pressure module ports on the 226/227 series allow simultaneous pressure readings without switching modules mid-task
ADT227-HART adds a HART communication calibrator function for configuring and calibrating smart transmitters directly in the field
IP67 rated calibrator housing tested to a 1-meter drop, 4G vibration, and dust/moisture exposure, built as a genuine portable field calibrator rather than lab-only equipment

Why Buy Additel from WestCalibration

As an authorized Additel dealer, we carry this equipment as real, in-house inventory rather than dropshipped or third-party sourced stock, so units come with valid manufacturer warranty coverage. Their automatic pressure calibrator line is available in our pressure calibrators category, and their documenting process calibrator line falls under multifunction calibrators.

Frequently Asked Questions

What’s the difference between the ADT226 and ADT227 multifunction process calibrator? The ADT227 offers improved electrical accuracy over the ADT226, and the ADT227-HART variant adds a built-in HART communication calibrator function for smart transmitter work.

Are Additel calibrators rated for hazardous areas? Yes, ATEX certified calibrator versions (the Ex models) are available across the ADT226, ADT227, and ADT760 lines for use as an intrinsically safe calibrator in classified environments.

Is Additel equipment from WestCalibration covered by manufacturer warranty? Yes, since we’re an authorized Additel dealer, units purchased through WestCalibration carry standard manufacturer warranty coverage.