Description
The Fluke 773 measures 4–20 mA process signals without opening the control loop. It also sources and simulates milliamp signals, supplies 24 V loop power, and measures or sources DC voltage for process-control troubleshooting.
Use the detachable clamp to access wiring in confined spaces and check transmitters, valves and PLC input/output signals. A backlit dual display shows the measured current and its percentage of the 4–20 mA span. Automatic ramp and step outputs support checks of control-system response, while data hold captures a reading for review.
Key specifications
- Clamp current measurement: 0–20.99 mA and 21.0–100.0 mA ranges
- Clamp accuracy: 0.2% + 5 counts on the 0–20.99 mA range
- Current resolution: 0.01 mA on the low clamp range
- In-series current measurement: 0–24.00 mA
- Current source/simulation: 0–24.00 mA
- DC voltage measurement: 0–30.00 V
- DC voltage source: 0–10.00 V
- Loop power: 24 V DC
- Maximum conductor diameter: 4.5 mm








