Pneumatic Pressure Calibrators

Pneumatic pressure calibrators are portable instruments used to generate, control, and measure pneumatic pressure for the calibration of pressure transmitters, gauges, and switches. They operate using compressed air or nitrogen as the pressure source, making them well-suited for hazardous environments where electrical equipment must be avoided. These calibrators typically combine a pressure pump, fine-adjustment controller, and reference measurement standard in a single portable unit.

Widely used in process industries, pneumatic pressure calibrators enable field technicians to perform on-site calibration of instruments without removing them from service. Models from Druck, Additel, and Ralston Instruments offer adjustable pressure ranges from vacuum to several hundred bar, supporting a wide variety of applications in oil & gas, chemical processing, and utilities.

Typical Applications

On-site calibration of pressure transmitters and differential pressure sensors in process plants
Testing and verifying safety relief valves and pressure switches in oil & gas facilities
Calibration of pressure gauges used in HVAC, water treatment, and industrial manufacturing
Verification of pneumatic control systems in chemical and pharmaceutical plants
Field service and maintenance of instrumentation in hazardous classified areas

Popular Brands

Leading manufacturers include Druck (Baker Hughes), known for the DPI612 series of portable pressure calibrators; Additel, offering the ADT900 series with integrated pumps and digital references; Mensor, providing high-accuracy pneumatic standards; and Ralston Instruments, recognized for rugged field-deployable calibration kits. Wallace & Tiernan also offers pneumatic calibration equipment widely used in water and wastewater treatment.