Fluke 789 ProcessMeter

Overview

The Fluke 789 ProcessMeter is an advanced loop calibration multimeter designed for process technicians. Building on the 787 series foundation, the 789 features a larger, brighter dual display and integrated HART mode capability, making it ideal for comprehensive control loop testing in industrial environments.

This dual-function instrument combines a precision true-RMS digital multimeter with a calibration-grade 20 mA loop calibrator, allowing technicians to measure, source, and simulate 4-20 mA signals in a single tool. The selectable 250-ohm HART resistor eliminates the need for separate test equipment.

Key Features

• Dual display showing simultaneous mA and percentage of scale readings
• True-RMS measurement to 1000V with CAT III safety rating
• Frequency measurement capability to 20 kHz
• 20 mA DC current source with manual step and Auto Step/Auto Ramp modes
• SpanCheck buttons for quick 4-20 mA toggle
• 1200-ohm drive capability on mA source for high-impedance testing
• Built-in selectable 250-ohm HART resistor
• 24V loop power supply
• Min/Max/Average/Hold/Relative measurement modes
• Enhanced backlight with two brightness levels
• Fluke Connect-enabled with IR3000 FC connector for wireless data transfer
• Infrared I/O compatible with FlukeView Forms Software
• Externally accessible battery and fuses

Applications

• 4-20 mA control loop calibration, testing, and troubleshooting
• Process transmitter simulation and verification
• HART instrument configuration and diagnostics
• Industrial electrical and instrumentation maintenance
• Plant commissioning and system startup

Included Accessories

• Fluke 789 ProcessMeter
• AC175 Alligator Clips
• TL71 Safety-Designed Test Lead Set
• Four (4) AA 1.5V Alkaline Batteries