Process Calibrators

Multifunction and loop calibrators for mA, voltage, thermocouple, RTD, frequency, and related process signals — Additel, PIE, and complementary tools, with ISO/IEC 17025 accredited calibration available on most instruments.

What a process calibrator does

A process calibrator sources and/or measures the electrical signals used in industrial control loops so you can check transmitters, I/O, and controllers without the full process running. Multifunction models combine several signal types in one handheld.

Common jobs

• **4–20 mA loops** — source, simulate, and measure with or without loop power.
• **Temperature signals** — thermocouple and RTD simulate/measure for transmitter and control checks.
• **Voltage / frequency** — for a wide range of sensors and discrete checks.
• **Diagnostics** — leak/fault finding features on documenting models (including PIE diagnostic tools where offered).

Choosing a calibrator

• **Signals required** — mA-only vs multifunction (TC/RTD/V/Hz).
• **Documenting vs basic** — as-found/as-left storage and PC download.
• **HART / fieldbus** — only when your installed base needs it (check each model).
• **Intrinsic safety** when the area classification requires it.

Brands in this category

Additel documenting process calibrators, **PIE** handheld process calibrators (loop, TC, RTD, multifunction), and related accessories. Pressure work often pairs with our Pressure Calibrators and Gauges categories.

Calibration

Most process calibrators can ship with **ISO/IEC 17025 accredited calibration**. Tell us which functions and ranges matter for your procedure.