IEC/ EN 60073

IEC 60073 lays out general rules for allocating particular meaning to visual acoustic and tactile indications so that safety of person/property can be enhanced. Apart from it, proper monitoring, control and maintenance of the equipment can be encouraged.

This standard is applied to:

1. Single indicator light
2. Push buttons
3. Mechanical indicators
4. LED’s or video display screens
5. Safety of person, property is evolved and also where codes are used to facilitate the proper monitoring and controlling of equipment
6. Where particular kind of coding is to be assigned by technical committee for a special function.

Meaning of color, shape & acoustic – general principal

 

Color	Shape	Acoustic	Meaning
			Safety of person/ Environment	Condition of Process	State of equipment
Red		-Sweeping sound -Bursts of sounds	Danger	Emergency	Faulty
Yellow		Pattern of segments with constant level	Warning/caution	Abnormal	Abnormal
Green		Continuous sound with constant level	Safe	Normal	Normal
Blue		Alternate sound pitch	Mandatory Significance
White/grey/Black		Other sounds	No specific meaning assigned

 

There are 3 indication modes

• Alerting
• Indication
• Confirmation

 

Acuator type	Identified by colour	exception
Non illuminating acuators
Emergency /normal (stop/off)	Red	Exceptions are allowed when red color is not available.
STOP/OFF	White,  grey black	Red can be used but green is not permitted
START/ON	White, grey, black	Green  can be used but red is not permitted
RESET	Blue,  white black ,grey
Use of black and white specific meaning	White, black	White –start/on Black- stop/off
Illuminating Acuators
Type a	Have the same colour wheather or not they are lit	For indication
Type b	Have a single colour when lit that is different from the colour when not lit and both colour have meaning	For confirmation
Type c	Have more than one possible colour of lightning

 

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