The Fluke 789 is a process meter and loop calibrator designed for technicians working with process control and calibration in industrial environments. It combines the functionality of a digital multimeter (DMM) and a loop calibrator into a single device, providing a useful tool for troubleshooting, calibration, and maintenance of process control systems.
Here are some key features and functions of the Fluke 789:
1. Process Measurement: The Fluke 789 can measure various process parameters, including volts, millivolts, ohms, milliamps, and temperature. It offers high accuracy and resolution for precise process measurements.
2. Loop Calibration: The device is capable of sourcing and simulating mA signals to calibrate and troubleshoot 4-20 mA current loops. It can also measure and simulate DC voltage signals.
3. HART Communication: The Fluke 789 has built-in HART communication capability, enabling it to communicate with HART-enabled devices for calibration, configuration, and diagnostics.
4. Diagnostics and Troubleshooting: The meter provides advanced troubleshooting features such as loop troubleshooting, 24 V loop power, a built-in continuity checker, and a selectable 250 Ω HART resistor.
5. Data Logging and Trending: The Fluke 789 supports data logging, allowing technicians to record and analyze measurement data over time. This feature is helpful for diagnosing intermittent issues and analyzing process trends.
6. Transfer of Results to PC: The device can transfer measurement data and calibration results to a computer via an optional USB adapter. This enables easy documentation, reporting, and analysis of calibration and troubleshooting activities.
7. Durable and User-Friendly Design: The Fluke 789 is built to withstand rough industrial environments. It features a robust design with a protective holster, and its interface is designed for ease of use, with intuitive menus and a large, backlit display.