Safety instructions
2.6 Use in hazardous areas
Unified Comfort Panels Hygienic
18 Compact Operating Instructions, 04/2023, A5E52219907-AA
TFT displays
A permanently displayed two-color or multi-color picture can cause a burn-in effect, i.e. the
picture remains dimly visible for a certain period of time. The longer the image is burned in,
the longer the image will last. In extreme cases, the image is permanently displayed.
The image outline usually disappears on its own when the screen remains switched off for
some time. Screensavers that use active black when the backlight is on reduce the burn-in
The brightness of the backlight decreases incrementally during operational life. You can
extend the service life of the display and backlight by taking the following measures:
Reduce the backlight.
Observe the operating hours of the backlight, see section "Technical specifications
2.6 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.
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