AEMC GROUNDFLEX 6474 User Manual

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AEMC GROUNDFLEX 6474 User Manual Manual pdf 9 page image

GroundFlex™ Adapter Model 6474 72.2 GroundFlex™ SensorThe GroundFlex™ sensors are placed around a conductor (pylon leg or pole) andclosed using a screw connector. This closed loop is then used to make a contact-free measurement of the current flowing in the conductor it is wrapped around.These sensors are like current measurement clamps but are able to encloseobjects that are much larger. GroundFlex™ sensors are available in lengths of upto approx 16 ft (5m) and can be placed around objects (such as pylon legs) up toin approx 5 ft diameter (1.5m).2.2.1 Calibration of GroundFlex™ SensorsGroundFlex™ sensors need to be calibrated before the first use. Calibration isnecessary for a new sensor, one that is no longer identified, or when a sensor hasbeen replaced. The calibration coefficients are then recorded in the Model 6474.NOTE: Do not move or touch the GroundFlex™ sensor or the calibration loopduring the calibration. This could cause errors.