The Current Loop Calibrator provides significantly extended performance when compared to any competitive voltage calibrator. With an accuracy of 0.015% and a 0.001 mA resolution, the calibrator has the highest accuracy in its class. Unique features, such as a "% Error" function, which eliminates manual error calculation and allows the display of the actual versus ideal error at any calibration point, puts this voltage calibrator way beyond similar instruments. The loop calibrator can simulate, power, and measure two-wire transmitters. With automatic Step and Ramp functions, the precision loop calibrator also enables remote calibration of 4-20mA devices.