Additel 273Ex - Handheld Pressure Calibrator

• Intrinsically safe design (ATEX & IECEx certified – Ex ia IIC T4 Ga)
• Accuracy up to 0.02% FS
• Field-switchable pressure module
• Dual digital pressure module inputs
• Built-in barometer for absolute and gauge pressure
• Color touchscreen with smartphone-like interface
• Built-in Quick Test Task functionality
• Bluetooth and USB communication
• Optional HART communication
• Compatible with Additel Link mobile app
• ISO 17025-accredited calibration included

The Additel 273Ex is an advanced intrinsically safe handheld multifunctional pressure calibrator designed for accurate pressure measurement and calibration in hazardous and potentially explosive environments. Built for both field and laboratory applications, this compact yet powerful device combines high-precision performance with a modern, smartphone-like user experience to support demanding calibration tasks with maximum safety and efficiency.

Certified to the most stringent ATEX and IECEx intrinsic safety standards (Ex ia IIC T4 Ga), the Additel 273Ex is ideal for use in oil & gas platforms, refineries, chemical and petrochemical plants, pharmaceutical facilities, and energy production sites. Its intrinsically safe design allows technicians to operate confidently in explosive gas environments without compromising accuracy or reliability.

The Additel 273Ex features a high-visibility transflective color touchscreen display, ensuring excellent readability even in direct sunlight. The intuitive, smartphone-style interface and fast touchscreen response significantly improve ease of use compared to traditional handheld calibrators, while the rugged construction ensures durability in harsh working conditions. Built-in Quick Test Tasks further streamline common calibration procedures, reducing setup time and increasing productivity in the field.

Equipped with a built-in barometric pressure sensor, the Additel 273Ex enables seamless measurement of both absolute and gauge pressure. The device supports three pressure module inputs—one field-switchable module at the bottom and two digital inputs on the side—allowing flexible configuration for a wide range of pressure calibration and testing applications. With accuracy options up to 0.02% FS, users can rely on precise and repeatable results across diverse operating environments.

For advanced transmitter calibration, the optional HART communication capability allows the Additel 273Ex to calibrate HART-enabled pressure transmitters over a wide pressure range. The calibrator can measure pressure, read mA or mV signals, and supply loop power to sensors and transmitters, making it a comprehensive all-in-one solution. Bluetooth and USB connectivity, along with compatibility with the Additel Link mobile app, simplify data management, documentation, and reporting.

Each Additel 273Ex is supplied with ISO/IEC 17025-accredited calibration data, ensuring traceability, long-term reliability, and outstanding value for calibration professionals who demand safety, precision, and performance.

Quality & Reliability

Designed for demanding industrial environments, the Additel 273Ex combines robust construction with cutting-edge technology to deliver long-term stability, dependable performance, and exceptional value. ISO 17025-accredited calibration data ensures traceable accuracy from day one, making it a trusted tool for critical pressure calibration tasks.