The AMU sensor measures the angles of the wire rope, or on the crane boom. It is used to control the angle via limits for maximum. allowed angle, or in conjuction with force and angle, to avoid wear of the wire ropes. As the angle of the
crane boom or wire rope changes, the less load is accepted by the CSM, if the AMU works with a force transmitter.
Progress Energy selected the PIAB Rope Tension Meter RTM 20D for their transmission maintenance crews, because it was the only device that met Progress Energy’s