Pressure calibrators explained: choosing a Druck DPI

A pressure calibrator generates and/or measures pressure to verify and adjust transmitters, gauges and switches. The right choice depends on your pressure range, required accuracy and whether you need loop/HART communication.

Key selection criteria

• Pressure range & media — pneumatic (up to ~40 bar) vs hydraulic (to 1000 bar / 15,000 psi).
• Accuracy — from 0.05% FS for field work down to 0.005% for reference/lab use.
• Generation — built-in hand pump, or an external pump/controller for automated tests.
• Electrical/HART — mA measure/source and HART or Fieldbus for smart transmitters.

Druck DPI range compared

DPI610E — self-contained handheld

Battery-powered with a built-in hand pump; ranges from 350 mbar to 1000 bar. The go-to for field pressure calibration where you need generation and loop measurement in one unit.

DPI612 Flex — interchangeable modules

Uses swappable PM620 TERPS modules so one instrument covers 95% vacuum to 1000 bar; integrated pump plus electrical measurement — flexible for a mixed instrument base.

DPI620G Genii — advanced multifunction

A modular multifunction calibrator and HART/Fieldbus communicator with world-class accuracy — the reference-grade choice for demanding calibration programmes.

Controware is an authorized Druck distributor. Compare the full Druck pressure range or the wider calibration instruments category.