Fluke 705 Loop CalibratorLow cost calibrator muscle. Process instrumentation requires periodic calibration and maintenance to ensure that it is operating correctly. For a powerful loop calibrator, the Fluke 705 Loop Calibrator is a cost effective, integrated solution for calibration, repair and maintenance of current loops. Use the Fluke 705 Loop Calibrator as a voltage source. The Fluke 705 Loop Calibrator has a unique current simulation feature that, when connected to an