SN EN 894-2+A1:2009

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
    3.1 Operator
    3.2 Work task
    3.3 Work equipment
    3.4 Signal
    3.5 Display
    3.6 Digital display
    3.7 Alphanumeric display
    3.8 Analogue display
    3.9 Symbols
    3.10 Perception
4 Visual displays
    4.1 Requirements for detection of visual displays
          4.1.1 Positioning the display
          4.1.2 Functional relationships between the
                  display and the operator
          4.1.3 Environmental factors
          4.1.4 Other conditions to observe for
                  facilitating signal detection
    4.2 Requirements for identification of visual displays
          4.2.1 Symbols used for displays
          4.2.2 Digital displays
          4.2.3 Analogue displays
          4.2.4 Choice of scales for analogue displays
          4.2.5 Choice of displays in relation to
                  different types of tasks
          4.2.6 Grouping displays
    4.3 Requirements for interpretation of visual
          displays
5 Auditory displays
    5.1 Requirements for detection of auditory displays
    5.2 Requirements for identification of auditory
          displays
    5.3 Requirements for interpretation of auditory
          displays
6 Tactile displays
    6.1 Requirements for detection of tactile displays
    6.2 Requirements for identification of tactile
          displays
    6.3 Requirements for interpretation of tactile
          displays
Annex A (informative) Shape of digits
Annex ZA (informative) Relationship between this European
         Standard and the EU Directory for Machinery

This European Standard gives guidance on the selection, design and location of displays to avoid potential ergonomic hazards associated with their use.