Fluke FLUKE-771 Milliamp Process Clamp Meter

Overview

The Fluke 771 is a compact, handheld clamp meter designed specifically for measuring 4-20 mA signals from transmitters and process instrumentation without breaking the circuit loop. Its detachable clamp with extension cable enables access to measurements in tight or confined locations, while the built-in measurement spotlight illuminates connections in dark control system enclosures.

Key Features

• Non-contact 4-20 mA loop measurement using clamp jaw (no circuit interruption needed)
• Best-in-class 0.2% accuracy for reliable measurement verification
• High resolution and sensitivity down to 0.01 mA for precision readings
• Dual backlit display shows both mA measurement and percent of 4-20 mA span simultaneously
• Detachable clamp with extension cable for accessing measurements in tight or confined locations
• Built-in measurement spotlight for illuminating hard-to-see wires in dark enclosures
• Extended range up to 99.9 mA for older control systems using 10-50 mA signals
• Hold function captures and displays changing measurements for documentation
• Automatic battery saving features for extended runtime
• Compact size and lightweight design for easy carrying and one-handed operation

Applications

• Troubleshooting and maintenance of 4-20 mA transmitter loops in process control systems
• Verifying loop currents without breaking connections or shutting down processes
• PLC and control system analog I/O measurements and diagnostics
• Non-contact verification of signal integrity in process instrumentation
• Measurement of legacy control systems operating on 10-50 mA signals