Use In Hazardous Areas - Siemens SIMATIC HMI series Operating Instructions Manual

Defective pixels in the display
The manufacturing process of modern displays does not currently guarantee that all pixels of
the display are perfect. It is therefore inevitable that the display will contain a small number
of defective pixels. This does not limit the function in any way provided the defective pixels
are not all in one location.
Additional information is available in section "Technical specifications (Page 107)".
2.3

Use in hazardous areas

The following warnings apply to operating a device with Ex approval in hazardous areas.
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.
Do not plug or pull connectors in potentially explosive atmospheres
If you plug in or pull out the connector during operation, there is a risk of sparkover. An
explosion can be triggered in the hazardous area due to sparkover, and death or serious
bodily injury can occur.
Plugging or pulling connectors, such as a 24 V DC power supply plug, is prohibited in the
potentially explosive atmosphere.
Only plug or pull a connector when one of the following two conditions is met: The area is
no longer hazardous or the device and its plug-in connections are de-energized.
To switch off the device, close all open programs or the current project, and switch off the
power to the device.
Also read the enclosed documentation for use in potentially explosive atmospheres and the
information in the section "Certificates and approvals (Page 85)".
IFP, IFP PRO, IFP ETH
Operating Instructions, 11/2017, A5E31298376-AH
WARNING
WARNING
Safety information
2.3 Use in hazardous areas
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