The Fluke 707Ex is the ideal, stand alone tool for calibration and maintenance of 4 to 20 mA control loops. It provides 24V loop power while measuring mA, and lets you measure and source/simulate mA with 1 μA resolution.

• ATEX safety rating II 2G EEx ia IIC T4
• Large display and simple, quick-click push/rotary button for easy one handed operation
• Simultaneous mA and % readout for quick, easy interpretation of readings mA accuracy of 0.015%, superior to other loop calibrators
• Pushbutton with 25% steps for fast, easy linearity checks
• 0 and 100% ‘span check’ for fast confirmation of zero and span
• 1 μA resolution for mA source/simulate and measure
• Selectable slow ramp, fast ramp and step ramp provides smooth outputs for valve slewing and loop functional tests
• Internal loop supply so you can power and read a transmitter at the same time without carrying a DMM
• Measures V dc to 28V
• Single, easily changed 9V battery
• 0-20 mA or 4-20 mA default start-up modes
• Innovative output adjustment dial with 1 μA and 100 μA resolution
• HART® compatible resistance connected in series with the loop supply for operation with HART communicators