Additel 227 Multifunction Process Calibrator

Additel 227 Multifunction Process Calibrator

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Daily, Weekly, and Monthly rates are available on select items.


Calibration, inspection, cleaning, and/or repair may be available for this item.

Product Overview: Additel 227 Multifunction Process Calibrator

Additel 227 Multifunction Process Calibrator

Additel’s new Multi-functional Documenting Process Calibrator series combines portability, functionality, and accuracy with a simple and easy-to-use color touchscreen display. An advanced documenting pressure calibrator (ADT227) and an advanced documentation process calibrator with a built-in HART communicator are included in this series (ADT227-HART). Additionally, each calibrator includes an intrinsically safe alternative that is ATEX certified.(ADT227Ex), allowing you to calibrate in the most extreme conditions. We are convinced that these new instruments will not be ineffective.

Not only will we meet your calibration needs, but we will also make metrology simple for you!

• Sourcing, simulating and measuring pressure, temperature and electrical signals

• Built-in Full Hart Communicator (ADT227-HART)

• Built-in Barometer

• Intrinsically safe models available (Ex)

• Large Smartphone Like Touchscreen User Experience

• USB Type-C and Bluetooth communications

• IP67 Rated

• High Voltage Measurement Capability (±300V AC)

• True RMS Voltage Meter Capability

• Dual channel pressure module ports

• High Static Differential Pressure Measurement 0.002% FS

• ISO 17025-accredited calibration w/data included


Cellphone Like Interface

In the field of process calibrators, the ADT227 series introduces a completely new user interface. The ADT227 is the industry’s smallest advanced multifunctional process calibrator, with an inherently safe version to boot, thanks to its menu-driven interface and tiny size/weight (ADT227Ex). For the most convenient field handheld process calibrator available, it uses sophisticated human hand engineering design. The ADT227 is equipped with a sophisticated embedded operating system that addresses issues such as poor response, laborious key operation, excessive power consumption, and overall slow processing that plague other systems.


Additel’s new and improved ADT227 series provides much improved accuracies including an electrical accuracy of 0.005% RD + 0.005% FS, high-static differential pressure mode accuracy to 0.002% FS and across the board improvements in temperature measurement accuracies.

Thermocouple Measurement Performance 

The ADT227 series improves thermocouple measurement capabilities by dramatically enhancing cold junction compensation (CJC) specifications and significantly reducing the stabilization time.

Portable and Robust 

Remote calibration work has its own set of challenges. Even in the (Ex) intrinsically safe versions, the ADT227series is lightweight and very portable, with a sophisticated color LCD screen to help ensure you can see clearly. With a 1-meter drop test, 4G vibration, xenon exposure, and 130g steel ball drop testing of the display, all models in the ADT227 series have been designed with toughness and dependability in mind. Temperature and humidity, as well as other environmental factors, have been taken into account. Additel has devised a unique internal circuit design and process technology to combat these external influences, allowing you to have complete trust in your crucial calibration and measurement work.

Intrinsically Safe Option 

The Additel 227Ex series calibrators have passed the most rigorous testing to obtain intrinsically safe certificates from ATEX, IECEX, CSA, and UKCA. The explosion-proof grade (Ex ia IIC T4 Ga) can be utilized in a variety of potentially explosive situations, including oil and gas platforms, refineries, chemical and petrochemical factories, pharmaceutical plants, and energy and gas processing plants. Each fundamentally safe calibrator features a high-resolution transflective color LCD display with improved readability in direct sunlight. These calibrators are up to the challenge no matter where your work takes you.

Voltage Meter (RMS)

The Additel 227 non-Ex version is equipped with “true effective value” RMS measuring function, which can measure the RMS of various waveforms with no need to consider distortion or waveform parameters and other errors caused by various waveforms.

Automated Tasks

Additel 227 Series Calibrators come with a powerful documenting calibration task application which provides a turnkey solution for automation and paperless calibration management. Tasks are easily created for temperature, pressure, flow and loop instruments. Up to 10,000 documented tasks for ADT227 and up to 1,000 documented tasks for ADT227Ex can be stored in the extensive on-board memory. Many tasks, when executed, are fully automated in data collection and performance validation, such as pass/fail and hysteresis calculations. All information can be integrated into Additel’s ACal software for additional calibration management.

Full HART Communicaton ( For ADT227-HART only)

The built-in full HART communicator will work with most HART transmitters . The ADT227-HART contains an extensive DD library to meet the needs of your smart transmitter. Our DD library is updated on a regular basis and at no additional cost. The ADT227Ex-HART is integrated with the HART communication functions, permitting users to monitor, control, and calibrate HART instrumentations. It’s an ideal device for calibrating, maintaining, and troubleshooting HART instrumentations.

Targeted Application Features

The onboard applications provide a useful selection of features including HART communicator, high static differential pressure mode, pressure leak test, safety valve test, analog transmitter calibration, unit converter, thermal calculator, and snapshots to name a few. High static differential pressure mode uses two sensors, unique calculation technology to achieve a differential pressure measurement to 0.002% FS at high static pressures. The leak test will automatically calculate the pressure drop to determine a leak condition. The safety valve test is a specialized task which captures the exact pressure release point by taking 10 readings per second during a valve crack test. You will find this and much more as we continue to develop new apps at Additel.

Data Logger ( For ADT227 & ADT227-HART only)

The calibrator can record pressure, temperature and electrical signals readings for a long period. Recorded values can be displayed numerically or graphically to identify trending. ADT227 & ADT227-HART can store up to 500 results. each result can record up to 7 channels with up to 100,0000 readings in each channel. These results can be easily exported to Additel application software. Each log session is easily configured at a set interval and each reading is provided with a date and time stamp.

Connectivity and Battery

Users can remotely connect mobile devices to the ADT226 via Bluetooth with an unobstructed distance up 20 meters. The included USB type-C comm port and cable provide a hard wired communication option as well as charging for the removeable Li-ion battery, which provides up to 35 hours of run time.

Time Saving Features

In addition to all the great features mentioned above, the ADT227series is loaded with time saving features like our builtin pressure and temperature converter, thermal calculator, wiring diagram guide for assisting with electrical connections, a built-in diagnostic center including intelligent alarm messaging and a real time error report and comprehensive selftesting to help our customers get the very most out of their investment in Additel calibration tools.

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Additel 227 Multifunction Process Calibrator Calibration

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