The Fluke 705, 707, and 715 loop calibrators form a complete family of volt and mA calibrators designed for current-loop calibration, repair, and maintenance. Each model offers specific features to meet different application requirements and budgets, all built with Fluke's renowned ruggedness and reliability .

The Fluke 715 Volt/mA Calibrator delivers 0.01% accuracy and 0.001 mA resolution. It sources voltage to 200 mV or 20 V, measures loop current (0-20 mA, 4-20 mA) with 0.01% accuracy, and sources or simulates 4-20 mA loop current. It provides a 24V loop supply with simultaneous current measurement and features ramp and step ramp output functions. Housed in the rugged Fluke 80 Series DMM package, it is EMI tolerant and dust/splash resistant .

The Fluke 707 Loop Calibrator features an innovative output adjustment dial with a "Quick Click" knob for one-handed operation, providing 1 μA and 100 μA resolution. It offers 0.015% accuracy and 0.001 mA resolution for mA sourcing, simulation, and measurement. It includes a HART mode that connects a 250Ω resistor in series with the 24V loop for compatibility with HART communicators, and features push button 25% steps for fast linearity checks .

The Fluke 705 Loop Calibrator is a cost-effective integrated solution with 0.02% accuracy and 0.001 mA resolution. It features mA sourcing, simulation, and measurement, with simultaneous display of mA and % of span readings. All models include selectable step or ramp outputs, a 24V loop supply, and operate on a standard 9V battery with 18 hours typical life at 12 mA. Each unit is backed by a three-year warranty and includes NIST-traceable calibration .