ISO 20673:2022 pdf download – Ships and marine technology — Electric rudder angle indicators. 5 Performance requirements 5.1 General The transmitter shall have sufficient capacity to satisfy the requirements specified in 5.2, 5.3 and 5.4 when all the connected indicators are operating simultaneously. The manufacturer should specify the capacity of connected indicators. 5.2 Calibration accuracy a) When the shaft of the transmitter is gradually rotated from the zero position to the maximum angle port and starboard, and the angles shown by the indicator are recorded every 5° of the rotation, the difference between the angles of the transmitter shaft and...