Overview The Fluke 771 delivers all the basics. It measures 4-20 mA signals without "breaking the loop", allowing you to measure low level dc current while saving downtime and money. You can also use it to measure output signals from transmitters without breaking the loop when maintaining and troubleshooting process and automation equipment. This saves time and avoids disruption to the process. For more convenience, the detachable clamp can be attached to the wire you're testing while you move the meter—connected by the extension cable—to a better viewing position. This is especially helpful for taking readings in tight locations. Features Best in class 0.2 % accuracy 0.01 mA resolution and sensitivity Measure 4 to 20 mA signals without ”breaking the loop” Measure mA signals for PLC and control system analog I/O Dual backlit display with both mA measurement and percent of 4 to 20 mA span Measurement Spotlight illuminates hard to see wires in dark enclosures Detachable clamp with extension cable for measurements in tight locations Measure 10 to 50 mA signals in older control systems using the 99.9 mA range Automatically change the 4 to 20 mA output for remote testing Power saving features, auto-off, backlight timeout extend battery life Hold function captures and displays changing measurements Includes Soft Carrying Case Users Manual Specifications Specifications Diameter of measurable conductor 0.177 in or 4.5 mm max Operating temperature -10 to 50°C Storage temperature -25 to 60°C Operating humidity < 90% @ < 30°C, < 75% @ 30 to 55°C Operating altitude 0 to 2000 m IP rating IP 40 Size 59 x 38 x 212 mm (2.32 x 1.5 x 8.35 in) Weight 260 G, (9.1 oz) Vibration Random 2 g, 5 to 500 Hz Shock 1 m drop test (except the jaw) EMI/RFI Meets EN61326-1 For current measurement w/ JAW, add 1 mA tospecification for EMC field strengths of 1 V/m up to 3 V/m. Temperature coefficient 0.01% °C(< 18°C or > 28°C) Power, battery life (2) AA 1.5 V Alkaline, IEC LR6, 40 hours typical Warranty Three years for electronicsOne year for cable and clamp assembly Functional Specifications mA measurement(measured by clamp) Resolution / range 0 to 20.99 mA Accuracy 0.2% + 2 counts Resolution / range 21.0mA to 100.0 mA Accuracy 1% + 5 counts
