This multi-process calibrator measure volts. mA, RTDs, thermocouples, frequency, and resistance to test sensors and transmitters. It simulates volts, mA, thermocouples, RTDs, frequency, and pressure to calibrate transmitters. Source mA with simultaneous pressure measurement to conduct valve and I/P tests. It performs fast linearity tests with auto step and auto ramp features. It also performs transmitters, during test using 24 V loop supply and and simultaneous mA measurement.