Every instrumentation technician knows the frustration of juggling multiple tools in tight industrial spaces. The Fluke 789 ProcessMeter solves this common problem by combining a high-performance digital multimeter with comprehensive loop calibration capabilities in one rugged, handheld device.
Built on the trusted foundation of the Fluke 87 DMM, this process meter delivers exceptional performance with the ability to measure, source, and simulate DC loop current at 0.05 percent accuracy and 1-microamp resolution. What makes this tool truly revolutionary is its integrated 24-volt loop supply, which means you can perform offline transmitter testing without hauling around a separate power supply. The built-in, selectable 250-ohm HART resistor further streamlines your workflow by eliminating yet another piece of equipment from your toolkit.
The Fluke 789 doesn't just save space—it saves time. With 25% manual step plus auto step and auto ramp on mA output, 1200 ohm drive capability, and convenient zero and 100% buttons for quick span checks between 4-20 mA, you'll spend less time setting up and more time troubleshooting. The large dual display with enhanced backlight (featuring two brightness settings) ensures clear readings even in challenging industrial environments.
Weighing just over one pound and meeting 1000 volt EN61010-1 CAT III and 600 volt EN61010-1 CAT IV standards, this meter is designed to handle the demands of daily use. It passed a rigorous one-meter drop test and provides approximately 140 hours of typical measurement time (or 10 hours when sourcing 20 mA) on four AA alkaline batteries. The external accessible battery compartment makes battery changes quick and easy, so you're never sidelined by a dead battery.
The Fluke 789 comes ready to work with a quick reference guide, comprehensive manual, AC70A alligator clips, and the TL75 safety-designed test lead set. Whether you're calibrating process instruments, troubleshooting control loops, or performing routine maintenance, this all-in-one tool helps you do more while carrying less—because your work is complex enough without making your tools complicated.
