Zytronic ZXY100, Integration Manual

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PG 27 ZYTRONIC PROJECTED CAPACITIVE ZXY100/110
®
TOUCH CONTROLLER & SENSOR INTEGRATION MANUAL ISSUE 1
ZYTRONIC
USING A BEZEL
The integration design may include a plastic or metal bezel to be used over the front of the
sensor, as shown in Figure 27.
FIGURE 27 SENSOR WITH METAL BEZEL FITTED
If this is the case, the following points should be considered:
•
If the bezel is metal, a 3mm spacing gasket is recommended between the front of the
sensor and the rear of the bezel.
•
A metal bezel must be grounded to a common ground point with the metal chassis and
controller PCB.
•
For good edge performance, it is recommended that the bezel is set back from the LCD
viewing area by a minimum of 5mm. For edge flick gestures as found in Windows 8,
increasing the bezel aperture size further may be beneficial.
•
In most cases, the spacing gasket used will also be required to provide a watertight seal.
•
For environments where the sensor surface may be subjected to rain or water droplets,
it is recommended that a metal bezel has a not conductive intermediate section between
the sensor surface and the inner edge of the bezel. This should be angled such as to
prevent any ledge where water can collect. The purpose of this is to prevent water from
forming a continuous ground path from the sensor surface to the metal bezel, as this
could result in undesirable behaviour.