Multifunction Calibrators
Multifunction Calibrators
Multifunction calibrators are versatile bench and portable instruments capable of sourcing and measuring multiple electrical and process parameters from a single unit. Unlike single-function calibrators, multifunction models can generate and measure voltage, current (including 4–20 mA loop signals), resistance, frequency, temperature via thermocouple and RTD simulation, and pressure — making them an efficient choice for calibration laboratories and field service teams that need to calibrate a wide variety of instruments without switching between dedicated sources. These instruments are central tools in any ISO/IEC 17025 accredited calibration laboratory.
Process calibrators in this category target industrial process instruments including transmitters, controllers, and recorders used in manufacturing and energy sectors. Loop calibrators specifically address 4–20 mA current loop simulation and measurement, which is the dominant signal standard in process control instrumentation across oil & gas, chemical, and power generation industries.
Typical Applications
- Calibrating pressure, temperature, and flow transmitters in industrial plants
- Sourcing and measuring 4–20 mA current loops for field instrument verification
- Thermocouple and RTD simulation for temperature instrument calibration
- AC/DC voltage and current calibration in electrical metrology laboratories
- Bench calibration of panel meters, recorders, and data loggers
Popular Brands
Fluke offers industry-standard multifunction process calibrators used in field and bench applications worldwide. Druck (a Baker Hughes brand) provides the DPI series of precision multifunction calibrators combining pressure, electrical, and temperature sourcing. Valhalla Scientific specializes in high-accuracy AC/DC calibration sources. PIE (Practical Instrument Electronics) and Altek supply compact, affordable process and loop calibrators favored in industrial maintenance environments.
