Fig. 5.1: Horizontal field of view
5.3.5 Labeling of Controls and Displays
5.3.5.1 Functional Labeling
Controls and displays should be labeled clearly and unequivocally according to its function, possibly by using standardized symbols (to be harmonized by IMO).
5.3.5.2 Label Terminology
The selection and use of terminology for labels should be consistent between controls and displays.
5.3.6 Lighting of Devices
5.3.6.1 Adjustable Lighting
Adjustable lighting (dimming control) should be provided for controls and visual displays, including display, control, and panel labels and critical markings, that must be read at night or under darkened conditions. The range of the dimming control should permit the displays to be legible under all ambient illumination conditions.
5.3.6.2 Dimming Capabilities
The lighting of the devices should be continuously or multiple step adjustable down to zero, except the lighting of warning and alarm indicators and the control of the dimmers which should remain readable.
5.3.6.3 Individual Lighting Adjustment
Each device should be fitted with an individual lighting adjustment. In addition functional groups of devices, displays and controls should be equipped with common light adjustment.
