User manual

Magelis XBT OT User Manual
5-4
5.4 Replacing the Backlight
The backlights of the XBT OT Series are not replaceable. Although the backlights used are a long-life type,
their lifetime may be shorter than the specified period depending on the XBT OT Series operating
environment. We would like to replace the displays instead of replacing the backlights. Please contact
Schneider Electric.
• The gasket must be inserted correctly into the groove for the OT’s moisture
resistance to be equivalent to IP65f.
• Since the gasket is flexible but not elastic, be careful not to stretch it
unnecessarily, as doing so could tear the gasket.
• Be sure the gasket’s seam is not inserted into any of the unit’s corners, only in
the straight sections of the groove. Inserting it into a corner may lead to its
eventually tearing.
• To provide stable resistance against dust and moisture, insert the gasket so that
the seam is at the bottom of the OT unit.
• The upper surface of the gasket should protrude approximately 2.0mm[0.08in]
out from the groove. Be sure to check that the gasket is correctly inserted before
installing the OT into a panel.
WARNING
UNINTENDED EQUIPMENT OPERATION
• Do not create switches for system functions that may cause injury and/or equipment damage.
If the unit's backlight burns out and the unit is not set to standby mode, the panel remains active. If
the operator fails to notice that the backlight is burned out and touches the panel, unintended
equipment operation can occur.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
2.0mm[0.08in]