Siemens SIMATIC Industrial Flat Panel IFP1500 Operating Instructions Manual page 20

Safety information
2.1 General safety instructions
Hazardous areas
When operating the HMI device in hazardous areas the following warning applies.
Explosion Hazard
Do not disconnect while circuit is live unless area is known to be non-hazardous.
Substitution of components may impair suitability for Class I, Division 2 or Zone 2.
Risque d'Explosion
Ne pas déconnecter pendant que le circuit est sous tension, sauf si la zone est non-
dangereuse. Le remplacement de composants peut compromettre leur capacité à satisfaire
à la Classe I, Division 2 ou Zone 2.
High frequency radiation
NOTICE
Unwanted operating states
High-frequency radiation, for example from cellular phones, interferes with device functions
and can cause device malfunction.
This causes injury and damages the system.
Avoid high-frequency radiation:
• Remove the sources of radiation from the vicinity of the device.
• Switch off radiating devices.
• Reduce the radio output of radiating devices.
• Observe the information on electromagnetic compatibility (Page 87).
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WARNING
Industrial Flat Panel IFP1500, IFP1900, IFP2200
Operating Instructions, 06/2014, A5E31298376-AB