VRS241 Rail Scale Coupled-In-Motion (CIM) Scale for Weighing Individual Rail Cars VRS241 rail scales provide accurate weighing of rail cars. CIM Scales are for weighing whole trains at one time while Static scales are designed for weighing an individual rail car that is stopped on the scale. Weighbridge converts a section of railroad track into a scale. Weighbridge is designed to meet AREMA requirements for Cooper E-80 loading. POWERCELL load cells transmit a powerful signal for accurate, reliable weighing.