DescriptionFluke 789 Loop Calibration Process MeterThe Fluke 789 ProcessMeter is a powerful troubleshooting tool designed for electricians and instrumentation professionals working with process control systems. Combining the capabilities of a full-featured loop calibrator with a high-performance digital multimeter, it allows users to measure, source, and simulate 4–20 mA signals while also performing a wide range of electrical measurements.Designed to simplify field work, the meter includes a built-in 24 V loop power supply for transmitter testing, removing the need to carry a separate power source. A selectable 250-ohm HART® resistor is also integrated, allowing users to work with HART communication devices without additional accessories. The large dual display with adjustable backlighting shows multiple readings simultaneously, helping technicians diagnose faults quickly and efficiently.The meter also offers the option to add wireless data logging using the Fluke Connect system (via the optional IR3000FC module), allowing measurements to be logged and reviewed remotely on a smartphone. With its robust construction, high measurement accuracy, and advanced loop troubleshooting capabilities, this ProcessMeter is ideal for maintenance, commissioning, and diagnostics in industrial environments.Key FeaturesCombines a digital multimeter and loop calibrator in one deviceMeasure, source, and simulate 4–20 mA signals for process control testingBuilt-in 24 V loop power supply for transmitter testingIntegrated 250-ohm HART® resistor eliminates the need for a separate resistorDual display with two levels of backlighting for clear readings in low lightSpanCheck function with 0% and 100% buttons for quick switching between 4 mA and 20 mA sourcingDisplays mA and percentage of span simultaneously for faster diagnosticsFrequency measurement up to 20 kHzMin, Max, Average, Hold, and Relative measurement modesDiode test and continuity beeper for electrical troubleshooting0.1% DC voltage accuracy and 0.05% DC current accuracyManual step, 25%, 100%, coarse, fine, auto step, and auto ramp functionsCAT III 1000 V / CAT IV 600 V safety ratingOptional wireless logging with Fluke Connect (requires IR3000FC module)What’s IncludedFluke 789 ProcessMeterAC175 alligator clips (1 set)TL71 test lead set (1 set)4 × AA 1.5 V alkaline batteries (installed)Quick reference guide3-year warranty
