Fluke 773 – Process Clamp Meter for mA Loop Signals Overview The Fluke 773 is a versatile meter built for process control technicians. It allows measurement of 4-20 mA signals without breaking the loop, plus it can source mA and DC voltage for testing control I/O or process devices. Its clamp jaw can detach for remote access in tight spaces. It includes loop power, scaled output, dual backlit display, and is rugged enough for field environments. Key Features Measure 4-20 mA signals via clamp without breaking the loop Source or simulate 4-20 mA signals for device calibration or troubleshooting Provides 24 V loop power to power transmitters while measuring current Measure and source DC voltage signals (e.g. 0-10 V, 1-5 V) Scaled mA output matching the mA clamp reading Simultaneous measure-and-source (mA in/out) for valves, isolators, or control modules Detachable clamp jaw usable with extension cable for tight spots Dual backlit display showing mA value and percent of 4-20 mA span Hold function to freeze readings on display Built-in measurement spotlight for low-light areas Technical Specifications Model: 773 Conductor (Jaw) Diameter: up to 4.5 mm (0.177 in) mA measurement via clamp: - Range 0-20.99 mA, accuracy 0.2 % + 5 counts - Range 21.0-100.0 mA, accuracy 1 % + 5 counts mA measurement via test jacks (series): 0-24.00 mA, accuracy 0.2 % + 2 counts mA sourcing / simulate output: 0-24.00 mA, accuracy 0.2 % + 2 counts; maximum drive into 1,000 ohms DC voltage measure range: 0-30.00 V, accuracy 0.2 % + 2 counts DC voltage source (output): 0-10.00 V, accuracy 0.2 % + 2 counts; limited drive current (~2 mA) Operating Temperature: -10 °C to +50 °C Storage Temperature: -25 °C to +60 °C Operating Humidity: < 90 % at < 30 °C; < 75 % at 30-55 °C Size: 44 × 70 × 246 mm Weight: 410 g Vibration: 2 g random, 5-500 Hz Shock: 1 m drop (except the jaw) IP Rating: IP40 Battery Power: four AA 1.5 V batteries; life ~12 hours when sourcing mA into 500 ohms Warranty: three years on electronics; one year on clamp assembly and cable Applications Troubleshooting 4-20 mA loops in process plants without shutting systems down Verifying PLC analog inputs, control valves, transmitters while loop is powered Measuring both current and voltage for process instruments Field work in tight or dark spaces where remote jaw and spotlight help Why Choose the Fluke 773 Saves time by allowing live loop measurements without breaking circuits Combines source, simulate, and measure functions in one tool High accuracy in lowest ranges, built rugged for industrial use Flexible jaw and remote configuration for tight measurement points Order Now The Fluke 773 is part of Fluke’s process clamp meter family. Available for purchase. Ships worldwide.
