3M™ MicroTouch™ System SCT3nnnEX Integration Guide
17
3M Touch Systems, Inc. Proprietary Information
– TSD-19-278
The sensor tail is designed to be flexible, and it may be creased
once in a single
direction,
in multiple locations along the tail and then secured in position with a light
adhesive tape. Avoid angular creases (45°) to the tail directly in the area of the bond and
tape strain relief.
The sensor tail should not move freely after assembly. Apply tape or another light
adhesive to secure the tail in a manner that does not apply stress to the tail.
Apply tape or other insulating material to sharp edges to protect the tail. Route the cable
away from sharp edges whenever possible. If this cannot be avoided, secure the tail so it
does not move.
Note:
3M Touch Systems does not recommend metal sensor mounting brackets. If metal
sensor mounting brackets must be used, be sure to keep tail bends away. Make sure that
all metal brackets are grounded.
Sealing Gasket to Bezel
Single-sided tapes, adhered to the bezel, make for easy sealing of the sensor. Simply
align and adhere the tape to the bezel edge. Gaskets should contact the sensor perimeter
to ensure a good seal without interfering with the viewing area. Do not adhere the gasket
to the sensor surface.
Attach sensor directly to LCD. Avoid mounting LCD and sensor independently to a
common bezel. Stresses applied to the bezel may influence the gap between the sensor
and the LCD. This may cause erratic operation and false touches.
Avoid attaching the sensor to a door, if the display is attached to a cabinet. If this cannot
be avoided, do not operate the sensor with a partially open door, which will cause erratic
operation such as jittery cursor and variable offsets. Upon closing the door, always reset
the controller.
Sensor
LCD
Touch controller
Sealing gasket adhered to bezel
3M 4956 VHB
mounting tape
Case
Bezel
Avoid creasing the
tail within 0.5 inch
(1.27 cm) of the
strain relief. A soft
bend is acceptable.
