The multifunction process signal calibrator is also referred to simply as the multifunction calibrator. It is a portable field calibrator, mainly used to calibrate various secondary instruments such as temperature instruments, transmitters, recorders, etc., and has the function of analog transmitter. It is powered by a high-capacity high-performance polymer rechargeable battery and can be connected to an external pressure module. 

The multifunction process calibrators has a built-in pH (acidity) meter calibration function. When the calibration transmitter measures its loop signal, it can visually display the current parameters and the corresponding temperature or pressure parameters.

The multifunction process calibrators simultaneously outputs and measures various standard signals such as V, mV, mA, Ω, Hz, and accurately simulates and measures various thermocouples and various thermal resistance temperature signals.