Fluke offers the widest variety of mA loop calibrators in the industry to address virtually all types of mA loop testing. The Fluke 710 combines pre-configured control valve tests, HART communication and 0.01% best-in-class accuracy mA measurement and sourcing to create the ultimate valve testing loop calibrator. The Fluke 773 mA clamp meter can measure 4 to 20 mA signals without breaking the loop and has a mA loop and V dc source built in. The Fluke 789 Process Meter features a multimeter and loop calibrator in one tool. Perform loop calibration/testing on the bench top (or anywhere the transmitter is not powered) with the on-board 24V power supplies. All these loop calibrators share a common user interface making the training on new tools faster across the whole team.