A HART Calibrator is a vital instrument used to set up, calibrate and troubleshoot HART-enabled field devices in the industrial world. It enables the technicians to interact with smart devices, meaning that the measurements are correct and transmitters perform optimally. A HART Calibrator is an efficient device with a loop test and device diagnostics tool that is advanced to verify digital signals and minimise downtime. It is extensively applied in manufacturing, power generation and oil and gas industries where accuracy is of high importance. Small, compact and very reliable, this device fits both analogue and digital communication, which is why it is a convenient solution to the contemporary process control system.