Crane Indicator | RCI (Rated Capacity Indicator) SystemScale and Control Inc. offers the Rayco-Wylie i4301 Crane Indicator / RCI (Rated Capacity Indicator) system, ideal for calculating the load weight value by reading the strain on the crane's wire rope. This can be done through the use of a line tensiometer (linerider) on the wire rope to measure load weight, and a cable reel with angle sensor to measure boom radius. These values are then viewed on the i4301 Display. The i4301 can also function as a Load Moment Indicator.
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Rayco-Wylie I4301 Crane Indicator | RCI System
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Crane Indicator/RCI Sensors
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Rated Capacity Indicator - RCI
On a Rated Capacity Indicator, the load weight value is calculated by reading the strain on the wire rope. This is done by using a load pin in a sheave, a running line tensiometer (linerider) or a dead-end load cell installed at the becket end. A digital load chart is also available to show load capacity. Calibration is simpler on an RCI as it removes the step of empty/loaded boom weight calibration for all boom configurations, as seen in an LMI. Calibration is done to train the load sensing device as to the strain on the wire rope. A cable reel with angle sensor is used as it is on the LMI to calculate radius. On a lattice boom crane, the RCI installation is much simpler and less costly from a calibration perspective as compared to a load moment system. A lattice boom RCI uses a strain gauge load sensor and an angle sensor for radius calibration. Which system should I choose? Click here to learn about other system types |