Holland Membrane Manuel d'utilisateur

Membrane Switch Design Guide

10that will have insertable legends. An oversized pocket is put behind this clear area so that the legend card can be inserted and seen through the w

11Always clean the surface before installing a membrane switch. If alignment is difficult, we recommend that you remove a small corner of the backing

12of the membrane switch. A sample of a simple drawing of a membrane switch is included in Appendix “C”. Appendix “D” is a glossary. Holland Namepl

13 Holland Nameplate Membrane Switch Checklist Appendix B The following items need to be communicated to Holland Nameplate before an order can be pro

14___ Customer Specified Shielding ___ None required ___ Printed silver grid ___ Printed carbon ___ Aluminum foil ___ Other ________________ Ove

15 Embossing ___ Key rims ___ Plateau ___ LED windows Hydroforming ___ Key rims ___ Plateau ___ LED windows Insertable legends ___ Not required

16 Color matching ___ Custom (samples supplied) ___ Pantone Matching System ___ Federal Standard No. 595a ___ Copy size, style, and location sp

17 Membrane Sample Appendix C

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2 Introduction Membrane switch technology has become a reliable front panel solution where environmental concerns or frequent cleaning are an issue.

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22Glossary Appendix D Actuation Force- The maximum force measured prior to or including the point at which keypad contact closure is achieved. Alod

23Overlay- Top layer of a membrane switch (the graphic interface between device and user) generally made of polyester or polycarbonate. Pad Emboss-

3specify type styles, colors, and sizes of all copy. Artwork should be provided to us for all logos or special symbols. We use the latest version of

4 Ultraviolet Hardcoats The most durable hardcoats are those that are cured by exposure to ultraviolet light. These coatings are called UV hard-coat

5switch. Standard tolerances should be +/- .015". Tolerances of +/- .010" can be held on critical dimensions such as the perimeter or cutou

6considered when specifying shielding requirements. Tail Exit Point Flexible membrane switches are connected by means of a flexible tail that is cu

7 Creasing of Flex Circuits In many applications the tail of a membrane switch needs to be bent at or near the exit point. Extreme caution should b

8sense to consider polyester domes if the total dome usage per order is expected to exceed 2500. A drawback of polyester domes is that they tend to r

9-45˚C to + 75˚C (See notes on polyester domes) Life Cycle Testing Holland Nameplate performs life cycle testing to insure that our customers have