With METRAwin90-F, a PC with IEEE 488 interface and a calibrator, the Fluke 5500A, 5520A, or 5700A can be combined into a universal, professional, automated closed loop calibration system for METRAHit series multimeters.

However, it is also suitable for universal use for the calibration of analog and digital multimeters, recorders, power meters, power measuring transducers, amplifier modules, transducers, etc.

Calibration procedures are generated by means of METRAwin90-F. Analog setpoint values are transmitted to the calibrator from the PC with IEEE 488 interface and are fed to the device to be calibrated from the calibrator's analog output. A BD232 adapter is connected to the PC by means of a RS 232 cable in order to allow for automatic transmission of measurement results from the METRAHit multimeter to the PC. In the case of measuring transducers, the analog output value of the device to be calibrated is measured by a METRAHit multimeter and fed back to the PC for evaluation via the interface. If the measurement results lie within prescribed tolerances, each subsequent calibration step is generated automatically until the entire procedure has been executed step by step.